./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-crafted/zero_sum_const2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-crafted/zero_sum_const2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1be1405ed24182ea691f06aafa4c0ada74bba78ab2a6f90fefc65156bb70df6c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:44:53,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:44:53,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:44:53,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:44:53,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:44:53,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:44:53,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:44:53,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:44:53,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:44:53,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:44:53,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:44:53,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:44:53,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:44:53,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:44:53,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:44:53,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:44:53,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:44:53,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:44:53,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:44:53,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:44:53,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:44:53,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:44:53,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:44:53,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:44:53,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:44:53,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:44:53,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:44:53,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:44:53,727 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:44:53,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:44:53,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:44:53,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:44:53,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:44:53,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:44:53,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:44:53,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:44:53,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:44:53,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:44:53,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:44:53,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:44:53,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:44:53,738 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:44:53,783 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:44:53,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:44:53,785 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:44:53,785 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:44:53,785 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:44:53,785 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:44:53,785 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:44:53,786 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:44:53,792 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:44:53,792 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:44:53,794 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:44:53,794 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:44:53,794 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:44:53,794 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:44:53,795 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:44:53,795 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:44:53,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:44:53,796 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:44:53,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:44:53,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:44:53,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:44:53,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:44:53,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:44:53,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:44:53,797 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:44:53,797 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:44:53,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:44:53,798 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:44:53,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:44:53,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:44:53,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:44:53,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:44:53,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:44:53,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:44:53,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:44:53,801 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:44:53,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:44:53,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:44:53,802 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:44:53,802 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:44:53,802 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1be1405ed24182ea691f06aafa4c0ada74bba78ab2a6f90fefc65156bb70df6c [2021-11-12 23:44:54,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:44:54,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:44:54,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:44:54,169 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:44:54,169 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:44:54,171 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/array-crafted/zero_sum_const2.c [2021-11-12 23:44:54,251 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/data/440b6433b/4ed2fd099b9b4777bd46e26f43e1488f/FLAG6439a5abc [2021-11-12 23:44:54,662 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:44:54,662 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/sv-benchmarks/c/array-crafted/zero_sum_const2.c [2021-11-12 23:44:54,669 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/data/440b6433b/4ed2fd099b9b4777bd46e26f43e1488f/FLAG6439a5abc [2021-11-12 23:44:55,048 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/data/440b6433b/4ed2fd099b9b4777bd46e26f43e1488f [2021-11-12 23:44:55,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:44:55,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:44:55,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:44:55,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:44:55,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:44:55,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:44:55" (1/1) ... [2021-11-12 23:44:55,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28b0b3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:55, skipping insertion in model container [2021-11-12 23:44:55,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:44:55" (1/1) ... [2021-11-12 23:44:55,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:44:55,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:44:55,252 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/sv-benchmarks/c/array-crafted/zero_sum_const2.c[406,419] [2021-11-12 23:44:55,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:44:55,275 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:44:55,285 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/sv-benchmarks/c/array-crafted/zero_sum_const2.c[406,419] [2021-11-12 23:44:55,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:44:55,305 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:44:55,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:55 WrapperNode [2021-11-12 23:44:55,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:44:55,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:44:55,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:44:55,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:44:55,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:55" (1/1) ... [2021-11-12 23:44:55,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:55" (1/1) ... [2021-11-12 23:44:55,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:44:55,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:44:55,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:44:55,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:44:55,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:55" (1/1) ... [2021-11-12 23:44:55,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:55" (1/1) ... [2021-11-12 23:44:55,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:55" (1/1) ... [2021-11-12 23:44:55,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:55" (1/1) ... [2021-11-12 23:44:55,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:55" (1/1) ... [2021-11-12 23:44:55,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:55" (1/1) ... [2021-11-12 23:44:55,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:55" (1/1) ... [2021-11-12 23:44:55,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:44:55,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:44:55,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:44:55,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:44:55,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:55" (1/1) ... [2021-11-12 23:44:55,407 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:44:55,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:44:55,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:44:55,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:44:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:44:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:44:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 23:44:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:44:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:44:55,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:44:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 23:44:55,807 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:44:55,807 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-12 23:44:55,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:44:55 BoogieIcfgContainer [2021-11-12 23:44:55,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:44:55,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:44:55,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:44:55,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:44:55,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:44:55" (1/3) ... [2021-11-12 23:44:55,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ef6ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:44:55, skipping insertion in model container [2021-11-12 23:44:55,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:44:55" (2/3) ... [2021-11-12 23:44:55,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ef6ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:44:55, skipping insertion in model container [2021-11-12 23:44:55,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:44:55" (3/3) ... [2021-11-12 23:44:55,818 INFO L111 eAbstractionObserver]: Analyzing ICFG zero_sum_const2.c [2021-11-12 23:44:55,823 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:44:55,823 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:44:55,869 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:44:55,876 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:44:55,876 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:44:55,890 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:55,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-12 23:44:55,895 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:55,895 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:44:55,896 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:44:55,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:55,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1853536887, now seen corresponding path program 1 times [2021-11-12 23:44:55,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:44:55,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213750413] [2021-11-12 23:44:55,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:55,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:44:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:56,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:44:56,085 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:44:56,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213750413] [2021-11-12 23:44:56,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213750413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:56,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:44:56,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:44:56,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100228779] [2021-11-12 23:44:56,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:56,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:44:56,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:44:56,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:44:56,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:44:56,120 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:56,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:56,168 INFO L93 Difference]: Finished difference Result 24 states and 35 transitions. [2021-11-12 23:44:56,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:44:56,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-12 23:44:56,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:56,178 INFO L225 Difference]: With dead ends: 24 [2021-11-12 23:44:56,178 INFO L226 Difference]: Without dead ends: 11 [2021-11-12 23:44:56,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:44:56,185 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.76ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.43ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:56,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 25 Unknown, 0 Unchecked, 0.76ms Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 30.43ms Time] [2021-11-12 23:44:56,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-12 23:44:56,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-11-12 23:44:56,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:56,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2021-11-12 23:44:56,217 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 15 transitions. Word has length 9 [2021-11-12 23:44:56,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:56,217 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 15 transitions. [2021-11-12 23:44:56,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:56,218 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2021-11-12 23:44:56,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-12 23:44:56,225 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:56,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:44:56,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 23:44:56,227 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:44:56,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:56,232 INFO L85 PathProgramCache]: Analyzing trace with hash -288493454, now seen corresponding path program 1 times [2021-11-12 23:44:56,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:44:56,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184780179] [2021-11-12 23:44:56,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:56,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:44:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:56,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:44:56,343 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:44:56,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184780179] [2021-11-12 23:44:56,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184780179] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:44:56,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:44:56,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:44:56,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934031459] [2021-11-12 23:44:56,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:44:56,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:44:56,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:44:56,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:44:56,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:44:56,349 INFO L87 Difference]: Start difference. First operand 11 states and 15 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:56,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:56,410 INFO L93 Difference]: Finished difference Result 21 states and 31 transitions. [2021-11-12 23:44:56,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:44:56,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-12 23:44:56,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:56,412 INFO L225 Difference]: With dead ends: 21 [2021-11-12 23:44:56,413 INFO L226 Difference]: Without dead ends: 15 [2021-11-12 23:44:56,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:44:56,420 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.64ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.12ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:56,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 5 Invalid, 30 Unknown, 0 Unchecked, 1.64ms Time], IncrementalHoareTripleChecker [11 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 43.12ms Time] [2021-11-12 23:44:56,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-12 23:44:56,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-12 23:44:56,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:56,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2021-11-12 23:44:56,433 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 10 [2021-11-12 23:44:56,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:56,435 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-11-12 23:44:56,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:56,437 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-11-12 23:44:56,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-12 23:44:56,438 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:56,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:44:56,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 23:44:56,439 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:44:56,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:56,439 INFO L85 PathProgramCache]: Analyzing trace with hash -918811174, now seen corresponding path program 1 times [2021-11-12 23:44:56,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:44:56,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579358959] [2021-11-12 23:44:56,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:56,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:44:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:56,597 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:44:56,598 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:44:56,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579358959] [2021-11-12 23:44:56,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579358959] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:44:56,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696523178] [2021-11-12 23:44:56,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:56,608 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:44:56,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:44:56,623 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:44:56,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-12 23:44:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:56,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:44:56,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:56,809 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:44:56,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:56,863 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:44:56,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696523178] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:44:56,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [361839234] [2021-11-12 23:44:56,884 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:44:56,884 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:44:56,889 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:44:56,894 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:44:56,895 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:44:56,928 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:56,935 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:44:56,937 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:56,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:44:56,938 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:44:56,939 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:56,940 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:44:56,943 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:44:56,965 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_12|], 21=[|v_#valid_13|]} [2021-11-12 23:44:56,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:56,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:56,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:56,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:44:56,990 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:56,991 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:44:56,992 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:56,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:44:56,993 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:44:56,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:57,017 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:44:57,043 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,046 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:44:57,047 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,048 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:44:57,048 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:44:57,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:57,063 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,065 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,067 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:44:57,075 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:44:57,076 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:44:57,097 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:44:57,099 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:44:57,101 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,102 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:44:57,103 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:44:57,108 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:44:57,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:44:57,126 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_13|], 15=[|v_#valid_14|]} [2021-11-12 23:44:57,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,161 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:44:57,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:44:57,165 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,170 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:44:57,171 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,172 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:44:57,173 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:44:57,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:57,203 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:44:57,231 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,237 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:44:57,238 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,239 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:44:57,239 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:44:57,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:57,257 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,261 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,265 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:44:57,269 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:44:57,270 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:44:57,281 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,289 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:44:57,290 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,291 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:44:57,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:44:57,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:44:57,331 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:44:57,338 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,340 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:44:57,340 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:44:57,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:57,355 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,367 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:44:57,370 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:44:57,372 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:44:57,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:57,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:57,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:57,540 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,572 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:44:57,582 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,584 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:44:57,585 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,586 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:44:57,589 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:44:57,590 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,591 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:44:57,597 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:44:57,600 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:44:57,605 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,612 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:44:57,624 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:44:57,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:44:57,664 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,667 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:44:57,668 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:44:57,669 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:44:57,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:57,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:44:57,697 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,699 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:44:57,700 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:44:57,702 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:44:57,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:57,751 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,799 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:44:57,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:44:57,812 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:44:57,812 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:44:57,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:57,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:57,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:57,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:57,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:57,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:57,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:57,932 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:44:57,936 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:44:57,936 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:44:57,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:44:57,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:44:57,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:44:57,948 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:44:57,948 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:44:57,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:57,955 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,957 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,958 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:44:57,958 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:44:57,959 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:44:57,966 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:44:57,970 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:44:57,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:57,979 INFO L185 QuantifierPusher]: treesize reduction 3, result has 94.3 percent of original size 50 [2021-11-12 23:44:57,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:57,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,031 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:44:58,036 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-12 23:44:58,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,094 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:44:58,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:44:58,105 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:44:58,107 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:44:58,112 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:58,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:44:58,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,146 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:58,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:44:58,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,211 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:44:58,214 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:44:58,222 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:44:58,228 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:44:58,231 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:58,235 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:44:58,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,264 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:44:58,270 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:44:58,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,319 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:44:58,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:44:58,328 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:44:58,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:44:58,337 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:58,340 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:44:58,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,368 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:44:58,372 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:44:58,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:58,427 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:44:58,428 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:44:58,437 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:44:59,020 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:44:59,020 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:44:59,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-12 23:44:59,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769407537] [2021-11-12 23:44:59,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:44:59,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:44:59,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:44:59,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:44:59,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:44:59,023 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:59,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:44:59,072 INFO L93 Difference]: Finished difference Result 27 states and 35 transitions. [2021-11-12 23:44:59,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:44:59,073 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-12 23:44:59,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:44:59,074 INFO L225 Difference]: With dead ends: 27 [2021-11-12 23:44:59,074 INFO L226 Difference]: Without dead ends: 16 [2021-11-12 23:44:59,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:44:59,080 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.98ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.41ms IncrementalHoareTripleChecker+Time [2021-11-12 23:44:59,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 36 Unknown, 0 Unchecked, 0.98ms Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 41.41ms Time] [2021-11-12 23:44:59,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-12 23:44:59,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-12 23:44:59,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:59,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-11-12 23:44:59,091 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 14 [2021-11-12 23:44:59,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:44:59,092 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-11-12 23:44:59,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:44:59,092 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-11-12 23:44:59,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-12 23:44:59,093 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:44:59,093 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:44:59,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-12 23:44:59,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:44:59,312 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:44:59,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:44:59,312 INFO L85 PathProgramCache]: Analyzing trace with hash 510053521, now seen corresponding path program 2 times [2021-11-12 23:44:59,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:44:59,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894001225] [2021-11-12 23:44:59,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:44:59,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:44:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:44:59,363 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-12 23:44:59,364 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:44:59,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894001225] [2021-11-12 23:44:59,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894001225] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:44:59,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776168246] [2021-11-12 23:44:59,364 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:44:59,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:44:59,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:44:59,365 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:44:59,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-12 23:44:59,414 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-12 23:44:59,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:44:59,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:44:59,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:44:59,472 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-12 23:44:59,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:44:59,514 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-12 23:44:59,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776168246] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:44:59,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1479088685] [2021-11-12 23:44:59,518 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:44:59,518 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:44:59,518 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:44:59,518 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:44:59,519 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:44:59,525 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,526 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:44:59,526 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,527 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:44:59,527 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:44:59,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,528 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:44:59,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:44:59,533 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_15|], 21=[|v_#valid_16|]} [2021-11-12 23:44:59,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:44:59,544 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:44:59,545 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,545 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:44:59,545 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:44:59,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:59,550 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:44:59,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,569 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:44:59,570 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,570 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:44:59,571 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:44:59,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:59,574 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,576 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:44:59,577 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:44:59,578 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:44:59,582 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:44:59,584 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:44:59,584 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:44:59,585 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:44:59,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,586 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:44:59,588 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:44:59,591 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_16|], 15=[|v_#valid_17|]} [2021-11-12 23:44:59,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,614 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:44:59,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:44:59,615 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,617 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:44:59,618 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,618 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:44:59,618 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:44:59,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:59,624 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:44:59,640 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,643 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:44:59,644 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,644 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:44:59,644 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:44:59,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:59,650 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,652 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:44:59,655 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:44:59,655 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:44:59,659 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,661 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:44:59,662 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,662 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:44:59,665 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:44:59,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:44:59,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,680 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:44:59,681 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,682 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:44:59,682 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:44:59,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:59,688 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,692 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:44:59,693 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:44:59,693 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:44:59,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:59,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:59,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:59,757 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,773 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:44:59,777 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,778 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:44:59,778 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,779 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:44:59,780 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:44:59,780 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,781 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:44:59,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:44:59,786 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:44:59,790 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:44:59,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:44:59,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:44:59,832 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,835 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:44:59,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:44:59,836 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:44:59,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:44:59,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:44:59,853 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,855 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:44:59,855 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,856 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:44:59,856 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:44:59,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:59,893 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,912 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:44:59,917 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:44:59,918 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:44:59,918 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:44:59,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:59,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:59,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:59,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:59,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:59,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:59,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:59,977 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:44:59,985 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:44:59,985 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:44:59,987 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:44:59,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:44:59,993 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:44:59,994 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,994 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:44:59,994 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:44:59,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:44:59,997 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,998 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:44:59,999 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:44:59,999 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:44:59,999 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:45:00,004 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:45:00,007 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:45:00,009 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:00,011 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-12 23:45:00,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,035 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:00,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-12 23:45:00,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,073 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:00,074 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:00,079 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:00,081 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:00,084 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:00,086 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:45:00,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,107 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:00,113 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:45:00,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,146 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:00,148 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:00,152 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:00,156 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:00,158 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:00,160 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:00,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,183 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:00,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:00,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,223 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:00,225 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:00,230 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:00,232 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:00,238 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:00,240 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:00,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,267 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:00,270 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:00,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:00,306 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:00,308 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:00,313 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:45:00,849 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:45:00,849 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:45:00,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2021-11-12 23:45:00,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187473839] [2021-11-12 23:45:00,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:45:00,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:45:00,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:00,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:45:00,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:45:00,851 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:00,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:00,907 INFO L93 Difference]: Finished difference Result 29 states and 39 transitions. [2021-11-12 23:45:00,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:45:00,908 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-12 23:45:00,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:00,908 INFO L225 Difference]: With dead ends: 29 [2021-11-12 23:45:00,908 INFO L226 Difference]: Without dead ends: 20 [2021-11-12 23:45:00,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:45:00,909 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.99ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.45ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:00,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 7 Invalid, 62 Unknown, 0 Unchecked, 0.99ms Time], IncrementalHoareTripleChecker [21 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 48.45ms Time] [2021-11-12 23:45:00,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-12 23:45:00,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-12 23:45:00,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:00,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2021-11-12 23:45:00,914 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 15 [2021-11-12 23:45:00,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:00,914 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2021-11-12 23:45:00,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:00,914 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2021-11-12 23:45:00,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-12 23:45:00,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:00,915 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:00,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:01,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2021-11-12 23:45:01,136 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:45:01,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:01,136 INFO L85 PathProgramCache]: Analyzing trace with hash -869134615, now seen corresponding path program 3 times [2021-11-12 23:45:01,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:01,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623400247] [2021-11-12 23:45:01,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:01,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:01,713 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:01,714 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:01,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623400247] [2021-11-12 23:45:01,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623400247] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:45:01,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98085109] [2021-11-12 23:45:01,714 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:45:01,714 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:01,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:45:01,715 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:45:01,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-12 23:45:01,767 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:45:01,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:45:01,769 WARN L261 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-12 23:45:01,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:02,065 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:45:02,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:02,430 INFO L354 Elim1Store]: treesize reduction 39, result has 52.4 percent of original size [2021-11-12 23:45:02,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 51 [2021-11-12 23:45:02,541 INFO L354 Elim1Store]: treesize reduction 73, result has 11.0 percent of original size [2021-11-12 23:45:02,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 18 [2021-11-12 23:45:02,594 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:45:02,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98085109] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:45:02,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [271736422] [2021-11-12 23:45:02,597 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:45:02,597 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:45:02,598 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:45:02,598 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:45:02,598 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:45:02,603 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,604 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:02,605 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,615 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:45:02,616 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:02,616 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,617 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:02,619 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:45:02,623 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_18|], 21=[|v_#valid_19|]} [2021-11-12 23:45:02,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:45:02,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,633 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:02,634 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,634 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:02,634 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:02,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:02,638 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:45:02,654 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,656 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:02,657 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:02,658 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:02,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:02,662 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,663 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,665 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:45:02,665 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:02,665 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:45:02,670 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:45:02,671 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:02,672 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,673 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:45:02,673 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:02,674 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:45:02,676 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:45:02,679 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_19|], 15=[|v_#valid_20|]} [2021-11-12 23:45:02,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,695 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:45:02,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:45:02,696 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:02,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,699 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:02,699 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:02,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:02,705 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:45:02,719 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:02,722 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,723 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:02,723 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:02,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:02,728 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,732 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:45:02,733 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:02,733 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:45:02,736 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,738 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:02,739 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,739 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:02,742 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:45:02,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:02,753 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,755 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:02,755 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:02,756 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:02,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:02,762 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,764 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:45:02,767 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:02,767 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:45:02,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:02,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:02,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:02,825 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,852 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:02,856 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,857 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:02,858 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:45:02,859 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:02,860 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,860 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:02,865 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:45:02,865 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:02,869 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,873 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:45:02,878 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:45:02,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:02,900 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:02,902 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:02,903 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:02,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:02,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:45:02,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:02,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,922 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:02,923 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:02,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:02,956 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:02,976 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:45:02,982 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:45:02,984 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:45:02,984 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:45:02,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,039 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:45:03,040 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:03,041 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:03,041 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:03,042 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:45:03,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:45:03,048 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:03,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:03,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:03,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:03,050 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:03,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,052 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:03,053 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:03,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:45:03,054 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:03,054 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:45:03,060 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:45:03,062 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:45:03,064 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:03,065 INFO L185 QuantifierPusher]: treesize reduction 3, result has 94.3 percent of original size 50 [2021-11-12 23:45:03,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,089 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:45:03,092 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-12 23:45:03,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,123 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:03,124 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:03,129 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:03,146 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:03,148 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:03,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:45:03,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,174 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:03,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:45:03,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,213 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:03,215 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:03,219 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:03,221 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:03,223 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:03,225 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:45:03,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,249 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:03,252 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:45:03,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,282 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:03,284 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:03,288 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:03,290 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:03,291 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:03,293 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:03,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,316 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:03,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:03,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:03,349 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:03,351 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:03,356 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:45:03,974 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:45:03,975 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:45:03,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 25 [2021-11-12 23:45:03,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206226168] [2021-11-12 23:45:03,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:45:03,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-12 23:45:03,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:03,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-12 23:45:03,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=772, Unknown=0, NotChecked=0, Total=870 [2021-11-12 23:45:03,977 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 25 states, 25 states have (on average 1.96) internal successors, (49), 25 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:04,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:04,260 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2021-11-12 23:45:04,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-12 23:45:04,261 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.96) internal successors, (49), 25 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-12 23:45:04,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:04,262 INFO L225 Difference]: With dead ends: 33 [2021-11-12 23:45:04,262 INFO L226 Difference]: Without dead ends: 30 [2021-11-12 23:45:04,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 40 SyntacticMatches, 5 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2021-11-12 23:45:04,263 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 12 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 140.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.42ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 176.27ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:04,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 21 Invalid, 229 Unknown, 0 Unchecked, 2.42ms Time], IncrementalHoareTripleChecker [8 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 176.27ms Time] [2021-11-12 23:45:04,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-12 23:45:04,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2021-11-12 23:45:04,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:04,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2021-11-12 23:45:04,270 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 19 [2021-11-12 23:45:04,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:04,270 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2021-11-12 23:45:04,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.96) internal successors, (49), 25 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:04,270 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2021-11-12 23:45:04,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-12 23:45:04,271 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:04,271 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:04,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:04,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:04,488 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:45:04,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:04,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1056486243, now seen corresponding path program 4 times [2021-11-12 23:45:04,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:04,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901081122] [2021-11-12 23:45:04,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:04,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:04,566 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-12 23:45:04,566 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:04,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901081122] [2021-11-12 23:45:04,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901081122] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:45:04,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363889260] [2021-11-12 23:45:04,566 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:45:04,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:04,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:45:04,584 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:45:04,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-12 23:45:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:04,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:45:04,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:04,770 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-12 23:45:04,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:04,847 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-12 23:45:04,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363889260] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:45:04,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1950810941] [2021-11-12 23:45:04,850 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:45:04,850 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:45:04,850 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:45:04,850 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:45:04,850 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:45:04,861 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,862 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:04,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:04,863 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:04,863 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,864 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:45:04,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:45:04,869 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_21|], 21=[|v_#valid_22|]} [2021-11-12 23:45:04,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:45:04,878 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,878 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:04,878 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,879 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:04,879 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:04,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:04,883 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:45:04,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:04,901 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:04,902 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:04,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:04,912 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,913 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,914 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:45:04,915 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:04,915 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:45:04,919 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:45:04,920 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:04,921 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:45:04,922 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:04,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,923 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:45:04,924 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:45:04,927 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_22|], 15=[|v_#valid_23|]} [2021-11-12 23:45:04,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,943 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:45:04,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:45:04,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:04,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:04,948 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:04,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:04,953 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:45:04,966 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:04,969 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,970 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:04,970 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:04,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:04,974 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,977 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,978 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:45:04,979 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:04,979 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:45:04,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,985 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:04,986 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:04,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:04,988 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:45:04,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:04,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:05,000 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,001 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:05,001 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,002 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:05,002 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:05,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,008 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,011 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,013 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:45:05,014 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:05,014 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:45:05,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,085 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,097 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:05,102 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,103 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:05,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,104 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:05,105 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:05,106 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,106 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:45:05,110 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:45:05,111 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:05,115 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,119 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:45:05,124 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:45:05,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:05,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:05,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:05,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:45:05,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,152 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:05,153 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,153 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:05,153 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:05,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:05,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:05,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:05,168 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:05,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,170 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:05,170 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:05,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,199 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,216 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:45:05,222 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:45:05,223 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:45:05,223 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:45:05,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,273 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:45:05,274 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:05,275 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,275 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:05,276 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:45:05,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:45:05,283 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,283 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:05,283 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,284 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:05,284 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:05,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,286 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,287 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,287 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:45:05,288 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:05,288 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:45:05,293 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:45:05,299 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:45:05,301 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-12 23:45:05,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,321 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,324 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-12 23:45:05,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,367 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:05,368 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:05,373 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:05,374 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:05,376 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,377 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:45:05,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,396 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,400 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:45:05,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,433 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:05,439 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:05,444 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:05,446 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:05,447 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,449 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:05,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,469 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:05,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:05,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,499 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:05,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:05,505 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:05,506 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:05,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,513 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:45:05,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,535 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:05,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:45:05,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:05,573 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:05,574 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:05,579 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:45:06,129 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:45:06,129 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:45:06,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2021-11-12 23:45:06,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914828051] [2021-11-12 23:45:06,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:45:06,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-12 23:45:06,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:06,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-12 23:45:06,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2021-11-12 23:45:06,131 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:06,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:06,288 INFO L93 Difference]: Finished difference Result 62 states and 77 transitions. [2021-11-12 23:45:06,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 23:45:06,289 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-12 23:45:06,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:06,290 INFO L225 Difference]: With dead ends: 62 [2021-11-12 23:45:06,290 INFO L226 Difference]: Without dead ends: 37 [2021-11-12 23:45:06,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:45:06,291 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 26 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.20ms SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 112.14ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:06,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 9 Invalid, 158 Unknown, 0 Unchecked, 1.20ms Time], IncrementalHoareTripleChecker [81 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 112.14ms Time] [2021-11-12 23:45:06,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-11-12 23:45:06,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2021-11-12 23:45:06,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:06,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2021-11-12 23:45:06,298 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 20 [2021-11-12 23:45:06,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:06,299 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2021-11-12 23:45:06,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:06,299 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2021-11-12 23:45:06,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-12 23:45:06,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:06,300 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:06,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:06,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:06,527 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:45:06,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:06,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1086331372, now seen corresponding path program 5 times [2021-11-12 23:45:06,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:06,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879093372] [2021-11-12 23:45:06,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:06,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:06,598 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 23:45:06,598 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:06,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879093372] [2021-11-12 23:45:06,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879093372] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:45:06,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308319070] [2021-11-12 23:45:06,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:45:06,599 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:06,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:45:06,600 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:45:06,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-12 23:45:06,663 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-12 23:45:06,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:45:06,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:45:06,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:06,756 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 23:45:06,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:06,818 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 23:45:06,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308319070] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:45:06,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1475974994] [2021-11-12 23:45:06,823 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:45:06,823 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:45:06,823 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:45:06,824 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:45:06,824 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:45:06,828 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,829 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:06,829 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,830 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:06,830 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:06,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,831 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:45:06,832 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:45:06,835 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_24|], 21=[|v_#valid_25|]} [2021-11-12 23:45:06,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:45:06,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:06,844 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,845 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:06,845 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:06,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:06,848 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:45:06,864 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,865 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:06,866 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:06,866 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:06,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:06,870 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,871 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,872 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:45:06,872 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:06,873 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:45:06,877 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:45:06,878 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:06,879 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,879 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:45:06,880 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:06,880 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,881 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:45:06,882 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:45:06,885 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_25|], 15=[|v_#valid_26|]} [2021-11-12 23:45:06,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,900 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:45:06,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:45:06,901 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:06,903 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,903 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:06,903 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:06,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:06,908 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:45:06,921 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,923 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:06,924 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,924 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:06,925 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:06,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:06,929 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,931 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:45:06,933 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:06,933 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:45:06,936 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,938 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:06,938 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,939 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:06,941 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:45:06,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:06,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:06,951 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,952 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:06,953 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:06,954 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:06,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:06,959 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:06,963 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:45:06,964 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:06,964 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:45:06,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:06,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:06,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,015 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,025 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:07,030 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,031 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:07,034 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,035 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:07,036 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:07,037 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,037 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:45:07,041 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:45:07,042 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:07,046 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:45:07,062 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:45:07,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:07,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:07,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:07,081 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,082 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:07,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:07,084 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:07,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:07,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:07,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:07,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:45:07,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:07,102 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,102 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:07,102 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:07,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,133 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,147 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:45:07,153 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:45:07,155 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:45:07,155 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:45:07,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,220 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:45:07,221 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:07,222 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,222 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:07,223 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:45:07,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:45:07,228 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,229 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:07,229 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,229 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:07,230 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:07,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,232 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,233 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:45:07,234 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:07,234 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:45:07,238 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:45:07,240 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:45:07,241 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,243 INFO L185 QuantifierPusher]: treesize reduction 3, result has 94.3 percent of original size 50 [2021-11-12 23:45:07,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,267 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:45:07,272 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-12 23:45:07,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,312 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:07,313 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:07,317 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:07,320 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:07,321 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,323 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:07,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,348 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:07,351 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:07,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,378 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:07,380 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:07,386 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:07,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:07,390 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,391 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:45:07,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,419 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,421 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:45:07,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,449 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:07,458 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:07,462 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:07,477 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:07,482 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,484 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:45:07,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,506 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:07,509 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:45:07,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:07,541 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:07,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:07,549 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:45:07,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:45:07,982 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:45:07,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2021-11-12 23:45:07,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353980751] [2021-11-12 23:45:07,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:45:07,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 23:45:07,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:07,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 23:45:07,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2021-11-12 23:45:07,984 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:08,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:08,137 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2021-11-12 23:45:08,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 23:45:08,138 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-12 23:45:08,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:08,139 INFO L225 Difference]: With dead ends: 34 [2021-11-12 23:45:08,139 INFO L226 Difference]: Without dead ends: 25 [2021-11-12 23:45:08,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=111, Invalid=441, Unknown=0, NotChecked=0, Total=552 [2021-11-12 23:45:08,140 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.18ms SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 94.86ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:08,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 7 Invalid, 160 Unknown, 0 Unchecked, 1.18ms Time], IncrementalHoareTripleChecker [71 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 94.86ms Time] [2021-11-12 23:45:08,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-12 23:45:08,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-11-12 23:45:08,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:08,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2021-11-12 23:45:08,145 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 21 [2021-11-12 23:45:08,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:08,146 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-11-12 23:45:08,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:08,146 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2021-11-12 23:45:08,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-12 23:45:08,147 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:08,147 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:08,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:08,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable234 [2021-11-12 23:45:08,363 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:45:08,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:08,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1278953466, now seen corresponding path program 6 times [2021-11-12 23:45:08,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:08,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417759905] [2021-11-12 23:45:08,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:08,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:08,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:09,516 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:09,516 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:09,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417759905] [2021-11-12 23:45:09,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417759905] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:45:09,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320669993] [2021-11-12 23:45:09,517 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:45:09,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:09,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:45:09,517 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:45:09,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-12 23:45:09,575 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:45:09,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:45:09,577 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 61 conjunts are in the unsatisfiable core [2021-11-12 23:45:09,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:10,143 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:45:10,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:10,679 INFO L354 Elim1Store]: treesize reduction 114, result has 46.0 percent of original size [2021-11-12 23:45:10,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 53 treesize of output 108 [2021-11-12 23:45:10,993 INFO L354 Elim1Store]: treesize reduction 198, result has 6.2 percent of original size [2021-11-12 23:45:10,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 52 treesize of output 23 [2021-11-12 23:45:11,073 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-12 23:45:11,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320669993] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:45:11,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [3334096] [2021-11-12 23:45:11,075 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:45:11,075 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:45:11,075 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:45:11,076 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:45:11,076 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:45:11,080 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,081 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:11,082 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,082 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:45:11,082 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:11,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:11,084 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:45:11,087 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_27|], 21=[|v_#valid_28|]} [2021-11-12 23:45:11,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:45:11,098 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,098 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:11,098 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:11,099 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:11,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,102 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:45:11,117 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,119 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:11,119 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:11,120 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:11,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,123 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,124 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,125 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:45:11,126 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:11,126 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:45:11,133 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:45:11,134 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:11,134 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:45:11,135 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:11,136 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,136 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:45:11,138 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:45:11,140 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_28|], 15=[|v_#valid_29|]} [2021-11-12 23:45:11,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,156 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:45:11,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:45:11,157 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,158 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:11,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:11,159 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:11,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,164 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:45:11,177 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:11,179 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,180 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:11,180 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:11,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,184 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,186 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,187 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:45:11,188 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:11,188 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:45:11,191 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,192 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:11,193 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:11,195 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:45:11,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:11,220 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,221 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:11,222 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,222 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:11,222 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:11,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,227 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,230 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:45:11,232 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:11,232 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:45:11,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,281 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,289 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:11,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,294 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:11,294 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:11,295 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:11,296 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:45:11,300 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:45:11,300 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:11,303 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,307 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:45:11,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:45:11,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:45:11,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:11,338 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,338 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:11,339 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:11,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:11,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:11,355 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,356 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:11,356 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,357 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:11,357 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:11,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,386 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,398 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:45:11,402 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:45:11,403 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:45:11,403 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:45:11,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,451 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:45:11,452 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:11,452 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:11,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:45:11,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:45:11,458 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,459 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:11,459 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:11,460 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:11,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,462 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,462 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,463 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:45:11,464 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:11,464 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:45:11,468 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:45:11,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:45:11,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-12 23:45:11,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,491 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-12 23:45:11,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,521 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:11,523 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:11,527 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:11,528 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:11,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,531 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:11,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,555 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:11,558 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:11,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,585 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:11,586 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:11,590 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:11,592 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:11,593 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,595 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:45:11,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,612 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,615 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:45:11,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,642 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:11,643 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:11,647 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:11,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:11,650 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,651 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:45:11,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,670 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:11,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:45:11,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:11,699 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:11,700 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:11,705 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:45:12,309 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:45:12,309 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:45:12,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 13, 12] total 39 [2021-11-12 23:45:12,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025530324] [2021-11-12 23:45:12,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:45:12,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-11-12 23:45:12,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:12,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-11-12 23:45:12,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=1750, Unknown=0, NotChecked=0, Total=1892 [2021-11-12 23:45:12,312 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 39 states, 39 states have (on average 1.5897435897435896) internal successors, (62), 39 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:14,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:14,039 INFO L93 Difference]: Finished difference Result 47 states and 56 transitions. [2021-11-12 23:45:14,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:45:14,046 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 1.5897435897435896) internal successors, (62), 39 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-12 23:45:14,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:14,047 INFO L225 Difference]: With dead ends: 47 [2021-11-12 23:45:14,047 INFO L226 Difference]: Without dead ends: 44 [2021-11-12 23:45:14,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 45 SyntacticMatches, 6 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 908 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=335, Invalid=3697, Unknown=0, NotChecked=0, Total=4032 [2021-11-12 23:45:14,049 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 366.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.28ms SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 460.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:14,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 89 Invalid, 680 Unknown, 0 Unchecked, 3.28ms Time], IncrementalHoareTripleChecker [76 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 460.00ms Time] [2021-11-12 23:45:14,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-12 23:45:14,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 35. [2021-11-12 23:45:14,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 34 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:14,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2021-11-12 23:45:14,062 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 24 [2021-11-12 23:45:14,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:14,062 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2021-11-12 23:45:14,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 1.5897435897435896) internal successors, (62), 39 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:14,062 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2021-11-12 23:45:14,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-12 23:45:14,063 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:14,063 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:14,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:14,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:14,281 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:45:14,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:14,282 INFO L85 PathProgramCache]: Analyzing trace with hash -866602372, now seen corresponding path program 7 times [2021-11-12 23:45:14,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:14,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136957844] [2021-11-12 23:45:14,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:14,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:14,343 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-12 23:45:14,343 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:14,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136957844] [2021-11-12 23:45:14,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136957844] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:45:14,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662684248] [2021-11-12 23:45:14,344 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:45:14,344 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:14,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:45:14,348 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:45:14,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-12 23:45:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:14,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:45:14,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:14,508 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-12 23:45:14,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:14,562 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-12 23:45:14,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662684248] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:45:14,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1047747670] [2021-11-12 23:45:14,569 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:45:14,569 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:45:14,569 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:45:14,569 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:45:14,569 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:45:14,578 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,579 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:14,579 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,580 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:14,580 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:14,581 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,581 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:45:14,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:45:14,584 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_30|], 21=[|v_#valid_31|]} [2021-11-12 23:45:14,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:45:14,593 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,593 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:14,594 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,594 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:14,594 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:14,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:14,599 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:45:14,614 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,617 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:14,618 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,618 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:14,618 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:14,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:14,622 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,624 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:45:14,625 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:14,625 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:45:14,631 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:45:14,632 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:14,632 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,633 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:45:14,634 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:14,635 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,635 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:45:14,637 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:45:14,639 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_31|], 15=[|v_#valid_32|]} [2021-11-12 23:45:14,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,654 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:45:14,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:45:14,655 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,656 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:14,656 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,657 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:14,657 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:14,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:14,664 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:45:14,676 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:14,678 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:14,679 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:14,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:14,685 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,687 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,688 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:45:14,689 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:14,689 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:45:14,692 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,695 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:14,696 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:14,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:45:14,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:14,708 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:14,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,710 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:14,710 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:14,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:14,717 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,719 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:45:14,721 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:14,721 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:45:14,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:14,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:14,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:14,795 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,804 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:14,808 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,809 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:14,809 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,810 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:14,811 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:14,811 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:45:14,815 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:45:14,816 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:14,819 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:45:14,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:45:14,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:45:14,868 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:14,870 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:14,871 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:14,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:14,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:14,886 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,887 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:14,887 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,888 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:14,888 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:14,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:14,915 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,926 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:45:14,930 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:45:14,931 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:45:14,931 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:45:14,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:14,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:14,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:14,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:14,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:14,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:14,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:14,978 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:45:14,979 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:14,980 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:14,981 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:45:14,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:45:14,992 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,992 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:14,992 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:14,993 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:14,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:14,995 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,996 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:14,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:45:14,997 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:14,997 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:45:15,001 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:45:15,003 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:45:15,005 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:15,007 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-12 23:45:15,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,027 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:15,032 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-12 23:45:15,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,066 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:15,068 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:15,072 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:15,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:15,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:15,076 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:15,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,095 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:15,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:15,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,123 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:15,124 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:15,132 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:15,134 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:15,138 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:15,139 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:15,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,159 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:15,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:15,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,188 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:15,190 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:15,193 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:15,194 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:15,196 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:15,197 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:15,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,222 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:15,225 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:15,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:15,255 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:15,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:15,261 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:45:15,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:45:15,788 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:45:15,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 16 [2021-11-12 23:45:15,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835555191] [2021-11-12 23:45:15,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:45:15,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-12 23:45:15,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:15,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-12 23:45:15,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:45:15,790 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 16 states, 16 states have (on average 1.75) internal successors, (28), 16 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:15,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:15,978 INFO L93 Difference]: Finished difference Result 76 states and 91 transitions. [2021-11-12 23:45:15,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-12 23:45:15,980 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.75) internal successors, (28), 16 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-12 23:45:15,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:15,981 INFO L225 Difference]: With dead ends: 76 [2021-11-12 23:45:15,981 INFO L226 Difference]: Without dead ends: 44 [2021-11-12 23:45:15,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2021-11-12 23:45:15,982 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 19 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 104.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.15ms SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 134.30ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:15,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 17 Invalid, 209 Unknown, 0 Unchecked, 1.15ms Time], IncrementalHoareTripleChecker [91 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 134.30ms Time] [2021-11-12 23:45:15,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-12 23:45:15,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 37. [2021-11-12 23:45:15,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 36 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:15,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2021-11-12 23:45:15,992 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 25 [2021-11-12 23:45:15,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:15,993 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-11-12 23:45:15,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.75) internal successors, (28), 16 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:15,993 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2021-11-12 23:45:15,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-12 23:45:15,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:15,995 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:16,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:16,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:16,207 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:45:16,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:16,208 INFO L85 PathProgramCache]: Analyzing trace with hash -777491611, now seen corresponding path program 8 times [2021-11-12 23:45:16,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:16,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887497820] [2021-11-12 23:45:16,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:16,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:16,290 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-12 23:45:16,290 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:16,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887497820] [2021-11-12 23:45:16,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887497820] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:45:16,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104189632] [2021-11-12 23:45:16,291 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:45:16,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:16,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:45:16,292 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:45:16,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-12 23:45:16,346 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-12 23:45:16,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:45:16,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:45:16,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:16,477 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-12 23:45:16,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:16,554 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-12 23:45:16,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104189632] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:45:16,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1969517644] [2021-11-12 23:45:16,556 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:45:16,556 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:45:16,557 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:45:16,557 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:45:16,557 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:45:16,561 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,562 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:16,562 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:16,563 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:16,563 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,564 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:45:16,565 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:45:16,567 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_33|], 21=[|v_#valid_34|]} [2021-11-12 23:45:16,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:45:16,576 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:16,577 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:16,577 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:16,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,580 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:45:16,594 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,596 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:16,596 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,597 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:16,597 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:16,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,600 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,602 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:45:16,602 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:16,602 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:45:16,606 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:45:16,607 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:16,608 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,608 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:45:16,609 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:16,609 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,609 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:45:16,611 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:45:16,613 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_34|], 15=[|v_#valid_35|]} [2021-11-12 23:45:16,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,628 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:45:16,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:45:16,629 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:16,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,631 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:16,645 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:16,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,649 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:45:16,661 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,662 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:16,663 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,663 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:16,663 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:16,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,667 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,668 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:45:16,670 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:16,670 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:45:16,672 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,674 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:16,674 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:16,677 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:45:16,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:16,694 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,695 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:16,695 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:16,696 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:16,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,701 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,702 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,704 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:45:16,704 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:16,704 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:45:16,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,761 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:16,765 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,765 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:16,766 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,766 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:45:16,767 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:16,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,768 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:16,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:45:16,772 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:16,774 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,777 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:45:16,781 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:45:16,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:16,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:16,802 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,803 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:16,803 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:16,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:16,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:45:16,819 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:16,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:16,822 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:16,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,848 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,859 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:45:16,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:45:16,863 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:45:16,864 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:45:16,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,910 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:45:16,911 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:16,912 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,912 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:16,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:45:16,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:45:16,918 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,918 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:16,919 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,919 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:16,919 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:16,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,921 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,922 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:45:16,923 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:16,923 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:45:16,927 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:45:16,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:45:16,930 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,931 INFO L185 QuantifierPusher]: treesize reduction 3, result has 94.3 percent of original size 50 [2021-11-12 23:45:16,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,951 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:45:16,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-12 23:45:16,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,984 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:16,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:16,989 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:16,991 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:16,993 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:16,994 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:16,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:16,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,011 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:17,014 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:17,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,038 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:17,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:17,042 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:17,044 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:17,045 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:17,047 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:17,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,064 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:17,067 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:17,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,092 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:17,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:17,097 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:17,098 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:17,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:17,101 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:17,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,129 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:17,131 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:17,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:17,156 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:17,157 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:17,162 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:45:17,594 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:45:17,595 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:45:17,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2021-11-12 23:45:17,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684001969] [2021-11-12 23:45:17,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:45:17,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-12 23:45:17,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:17,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-12 23:45:17,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2021-11-12 23:45:17,596 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:17,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:17,783 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2021-11-12 23:45:17,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-12 23:45:17,783 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-12 23:45:17,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:17,786 INFO L225 Difference]: With dead ends: 41 [2021-11-12 23:45:17,786 INFO L226 Difference]: Without dead ends: 30 [2021-11-12 23:45:17,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 65 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2021-11-12 23:45:17,788 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 12 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 102.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.15ms SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 120.79ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:17,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 11 Invalid, 229 Unknown, 0 Unchecked, 1.15ms Time], IncrementalHoareTripleChecker [107 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 120.79ms Time] [2021-11-12 23:45:17,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-12 23:45:17,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-11-12 23:45:17,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:17,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2021-11-12 23:45:17,802 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 26 [2021-11-12 23:45:17,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:17,802 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2021-11-12 23:45:17,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:17,802 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2021-11-12 23:45:17,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-12 23:45:17,803 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:17,803 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:17,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:18,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable408 [2021-11-12 23:45:18,007 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:45:18,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:18,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1967427511, now seen corresponding path program 9 times [2021-11-12 23:45:18,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:18,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959085168] [2021-11-12 23:45:18,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:18,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:19,512 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 1 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:19,512 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:19,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959085168] [2021-11-12 23:45:19,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959085168] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:45:19,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483677780] [2021-11-12 23:45:19,513 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:45:19,513 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:19,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:45:19,518 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:45:19,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-12 23:45:19,562 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:45:19,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:45:19,563 WARN L261 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 79 conjunts are in the unsatisfiable core [2021-11-12 23:45:19,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:20,360 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:45:20,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:21,155 INFO L354 Elim1Store]: treesize reduction 227, result has 43.3 percent of original size [2021-11-12 23:45:21,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 69 treesize of output 185 [2021-11-12 23:45:22,005 INFO L354 Elim1Store]: treesize reduction 383, result has 4.3 percent of original size [2021-11-12 23:45:22,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 70 treesize of output 30 [2021-11-12 23:45:22,069 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-12 23:45:22,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483677780] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:45:22,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1420884960] [2021-11-12 23:45:22,071 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:45:22,071 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:45:22,072 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:45:22,072 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:45:22,072 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:45:22,085 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,086 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:22,087 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,087 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:45:22,088 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:22,088 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:22,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:45:22,091 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_36|], 21=[|v_#valid_37|]} [2021-11-12 23:45:22,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:45:22,098 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,098 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:22,098 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:22,099 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:22,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,111 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:45:22,127 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:22,129 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,130 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:22,130 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:22,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,139 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,140 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:45:22,142 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:22,142 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:45:22,154 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:45:22,154 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:22,154 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:45:22,155 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:22,155 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,156 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:45:22,157 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:45:22,165 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_37|], 15=[|v_#valid_38|]} [2021-11-12 23:45:22,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,177 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:45:22,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:45:22,177 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:22,179 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:22,180 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:22,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,183 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:45:22,195 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,198 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:22,198 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:22,199 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:22,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,204 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,206 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,208 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:45:22,208 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:22,208 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:45:22,211 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,212 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:22,213 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,213 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:22,215 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:45:22,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:22,226 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:22,227 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,228 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:22,228 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:22,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,233 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,235 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,236 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:45:22,237 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:22,237 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:45:22,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,284 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,291 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:22,295 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,296 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:22,296 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:45:22,308 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:22,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:22,313 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:45:22,313 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:22,316 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:45:22,323 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:45:22,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:45:22,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,347 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:22,348 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,348 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:22,348 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:22,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:22,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:22,362 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:22,364 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:22,364 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:22,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,392 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,403 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:45:22,407 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:45:22,409 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:45:22,409 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:45:22,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,456 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:45:22,457 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:22,457 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,457 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:22,458 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:45:22,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:45:22,464 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,464 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:22,465 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,465 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:22,465 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:22,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,467 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,468 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:45:22,469 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:22,469 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:45:22,473 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:45:22,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:45:22,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,477 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-12 23:45:22,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,494 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-12 23:45:22,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,523 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:22,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:22,528 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:22,529 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:22,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,532 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:22,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,550 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:22,553 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:22,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,582 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:22,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:22,587 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:22,588 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:22,589 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,591 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:22,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,608 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:22,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:22,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,636 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:22,637 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:22,641 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:22,642 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:22,643 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:22,644 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:22,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,662 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:22,664 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:22,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:22,691 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:22,692 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:22,697 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:45:23,390 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:45:23,390 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:45:23,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 16, 14] total 49 [2021-11-12 23:45:23,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305687094] [2021-11-12 23:45:23,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:45:23,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-11-12 23:45:23,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:23,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-11-12 23:45:23,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=2667, Unknown=0, NotChecked=0, Total=2862 [2021-11-12 23:45:23,392 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 49 states, 49 states have (on average 1.5510204081632653) internal successors, (76), 49 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:25,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:25,845 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2021-11-12 23:45:25,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-12 23:45:25,846 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 1.5510204081632653) internal successors, (76), 49 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-12 23:45:25,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:25,847 INFO L225 Difference]: With dead ends: 55 [2021-11-12 23:45:25,847 INFO L226 Difference]: Without dead ends: 52 [2021-11-12 23:45:25,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 53 SyntacticMatches, 8 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1742 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=467, Invalid=5695, Unknown=0, NotChecked=0, Total=6162 [2021-11-12 23:45:25,850 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 11 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 545.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.24ms SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 665.90ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:25,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 105 Invalid, 959 Unknown, 0 Unchecked, 4.24ms Time], IncrementalHoareTripleChecker [103 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 665.90ms Time] [2021-11-12 23:45:25,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-12 23:45:25,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 42. [2021-11-12 23:45:25,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.1951219512195121) internal successors, (49), 41 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:25,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2021-11-12 23:45:25,859 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 29 [2021-11-12 23:45:25,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:25,860 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2021-11-12 23:45:25,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 1.5510204081632653) internal successors, (76), 49 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:25,860 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2021-11-12 23:45:25,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-12 23:45:25,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:25,861 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:25,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:26,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable466 [2021-11-12 23:45:26,087 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:45:26,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:26,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1818473405, now seen corresponding path program 10 times [2021-11-12 23:45:26,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:26,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842910134] [2021-11-12 23:45:26,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:26,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:26,184 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-12 23:45:26,185 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:26,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842910134] [2021-11-12 23:45:26,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842910134] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:45:26,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432124524] [2021-11-12 23:45:26,185 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:45:26,186 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:26,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:45:26,186 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:45:26,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-12 23:45:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:26,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-12 23:45:26,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:26,385 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-12 23:45:26,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:26,459 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-12 23:45:26,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432124524] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:45:26,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [897457360] [2021-11-12 23:45:26,462 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:45:26,463 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:45:26,463 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:45:26,463 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:45:26,463 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:45:26,468 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,469 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:26,469 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:26,470 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:26,470 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,471 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:45:26,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:45:26,473 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_39|], 21=[|v_#valid_40|]} [2021-11-12 23:45:26,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:45:26,482 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,482 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:26,483 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:26,483 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:26,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,489 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:45:26,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,503 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:26,504 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,504 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:26,504 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:26,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,507 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,508 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,509 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:45:26,509 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:26,509 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:45:26,513 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:45:26,514 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:26,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:45:26,515 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:26,516 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:45:26,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:45:26,521 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_40|], 15=[|v_#valid_41|]} [2021-11-12 23:45:26,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,535 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:45:26,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:45:26,536 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:26,538 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:26,538 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:26,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,542 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:45:26,555 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,556 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:26,557 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,557 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:26,557 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:26,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,561 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,563 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,564 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:45:26,565 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:26,565 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:45:26,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,568 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:26,569 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,569 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:26,571 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:45:26,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:26,583 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,584 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:26,584 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,584 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:26,585 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:26,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,589 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,590 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,592 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:45:26,592 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:26,593 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:45:26,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,637 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,644 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:26,647 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,648 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:26,649 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:45:26,650 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:26,650 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:26,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:45:26,654 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:26,657 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:45:26,664 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:45:26,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:26,684 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:26,685 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:26,685 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:26,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:26,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:45:26,701 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,702 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:26,703 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,703 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:26,703 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:26,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,728 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,739 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:45:26,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:45:26,745 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:45:26,745 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:45:26,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,800 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:45:26,801 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:26,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:26,803 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:45:26,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:45:26,808 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,808 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:26,808 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,809 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:26,809 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:26,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,811 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,811 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,812 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:45:26,812 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:26,813 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:45:26,817 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:45:26,818 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:45:26,820 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,821 INFO L185 QuantifierPusher]: treesize reduction 7, result has 87.7 percent of original size 50 [2021-11-12 23:45:26,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,839 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:45:26,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-12 23:45:26,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,865 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:26,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:26,870 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:26,872 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:26,873 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,874 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:26,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,892 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:26,895 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:26,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,923 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:26,924 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:26,928 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:26,930 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:26,931 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:45:26,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,948 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,951 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:45:26,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,974 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:26,975 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:26,979 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:26,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:26,981 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:26,982 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:45:26,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:26,998 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:27,000 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:45:27,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:27,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:27,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:27,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:27,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:27,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:27,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:27,024 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:27,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:27,029 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:45:27,477 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:45:27,477 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:45:27,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 19 [2021-11-12 23:45:27,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942392204] [2021-11-12 23:45:27,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:45:27,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-12 23:45:27,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:27,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-12 23:45:27,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2021-11-12 23:45:27,479 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 19 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:27,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:27,645 INFO L93 Difference]: Finished difference Result 90 states and 105 transitions. [2021-11-12 23:45:27,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:45:27,645 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 19 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-12 23:45:27,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:27,646 INFO L225 Difference]: With dead ends: 90 [2021-11-12 23:45:27,646 INFO L226 Difference]: Without dead ends: 51 [2021-11-12 23:45:27,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=172, Invalid=640, Unknown=0, NotChecked=0, Total=812 [2021-11-12 23:45:27,647 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 32 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.98ms SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 112.86ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:27,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 15 Invalid, 251 Unknown, 0 Unchecked, 0.98ms Time], IncrementalHoareTripleChecker [103 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 112.86ms Time] [2021-11-12 23:45:27,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-12 23:45:27,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2021-11-12 23:45:27,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 43 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:27,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2021-11-12 23:45:27,655 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 30 [2021-11-12 23:45:27,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:27,655 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2021-11-12 23:45:27,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 19 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:27,655 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2021-11-12 23:45:27,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-12 23:45:27,656 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:27,656 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:27,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:27,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable524,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:27,879 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:45:27,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:27,879 INFO L85 PathProgramCache]: Analyzing trace with hash -373283724, now seen corresponding path program 11 times [2021-11-12 23:45:27,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:27,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980091333] [2021-11-12 23:45:27,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:27,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:27,977 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-12 23:45:27,977 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:27,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980091333] [2021-11-12 23:45:27,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980091333] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:45:27,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461823852] [2021-11-12 23:45:27,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:45:27,978 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:27,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:45:27,979 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:45:28,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-12 23:45:28,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-12 23:45:28,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:45:28,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-12 23:45:28,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:28,181 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-12 23:45:28,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-12 23:45:28,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461823852] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:45:28,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [451996172] [2021-11-12 23:45:28,268 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:45:28,268 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:45:28,269 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:45:28,269 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:45:28,269 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:45:28,276 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,277 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:28,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,277 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:28,278 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:28,278 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:45:28,279 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:45:28,281 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_42|], 21=[|v_#valid_43|]} [2021-11-12 23:45:28,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:45:28,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,288 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:28,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,288 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:28,289 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:28,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,295 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:45:28,306 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,308 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:28,308 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,308 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:28,308 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:28,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,310 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:45:28,312 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:28,312 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:45:28,316 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:45:28,316 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:28,316 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,317 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:45:28,317 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:28,321 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:45:28,322 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:45:28,337 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_43|], 15=[|v_#valid_44|]} [2021-11-12 23:45:28,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,351 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:45:28,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:45:28,352 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:28,353 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,354 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:28,354 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:28,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,356 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:45:28,366 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,374 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:28,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:28,375 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:28,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,382 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,383 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,386 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:45:28,387 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:28,387 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:45:28,389 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,391 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:28,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:28,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:45:28,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:28,442 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,443 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:28,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:28,444 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:28,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,449 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,451 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:45:28,453 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:28,454 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:45:28,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,498 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,506 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:28,509 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,510 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:28,510 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:45:28,512 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:28,512 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,512 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:28,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:45:28,516 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:28,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,522 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:45:28,526 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:45:28,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:45:28,549 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,551 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:28,551 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,552 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:28,552 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:28,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:28,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:28,565 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,566 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:28,566 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,567 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:28,567 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:28,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,592 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,603 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:45:28,606 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:45:28,607 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:45:28,608 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:45:28,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,669 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:45:28,670 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:28,670 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,671 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:28,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:45:28,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:45:28,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,677 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:28,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:28,678 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:28,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,680 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,680 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,681 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:45:28,681 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:28,682 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:45:28,686 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:45:28,687 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:45:28,688 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,690 INFO L185 QuantifierPusher]: treesize reduction 3, result has 94.3 percent of original size 50 [2021-11-12 23:45:28,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,708 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:45:28,711 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-12 23:45:28,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,735 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:28,736 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:28,740 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:28,742 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:28,743 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,744 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:28,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,762 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:28,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:28,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,788 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:28,789 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:28,793 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:28,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:28,796 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,797 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:45:28,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,813 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,816 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:45:28,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,841 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:28,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:28,845 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:28,847 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:28,848 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,849 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:45:28,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,865 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:28,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:45:28,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:28,891 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:28,892 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:28,897 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:45:29,365 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:45:29,366 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:45:29,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 20 [2021-11-12 23:45:29,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100257830] [2021-11-12 23:45:29,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:45:29,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-12 23:45:29,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:29,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-12 23:45:29,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2021-11-12 23:45:29,367 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand has 20 states, 20 states have (on average 1.85) internal successors, (37), 20 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:29,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:29,581 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2021-11-12 23:45:29,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 23:45:29,582 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.85) internal successors, (37), 20 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-12 23:45:29,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:29,582 INFO L225 Difference]: With dead ends: 48 [2021-11-12 23:45:29,582 INFO L226 Difference]: Without dead ends: 35 [2021-11-12 23:45:29,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 79 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=192, Invalid=800, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:45:29,583 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 110.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.75ms SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 129.69ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:29,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 13 Invalid, 298 Unknown, 0 Unchecked, 1.75ms Time], IncrementalHoareTripleChecker [96 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 129.69ms Time] [2021-11-12 23:45:29,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-12 23:45:29,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-12 23:45:29,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 34 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:29,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2021-11-12 23:45:29,591 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 31 [2021-11-12 23:45:29,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:29,591 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2021-11-12 23:45:29,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.85) internal successors, (37), 20 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:29,592 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2021-11-12 23:45:29,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-12 23:45:29,592 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:29,592 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:29,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:29,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable582,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:29,800 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:45:29,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:29,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1803528730, now seen corresponding path program 12 times [2021-11-12 23:45:29,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:29,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913022041] [2021-11-12 23:45:29,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:29,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:31,682 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 1 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:31,682 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:31,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913022041] [2021-11-12 23:45:31,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913022041] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:45:31,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91207253] [2021-11-12 23:45:31,683 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:45:31,683 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:31,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:45:31,683 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:45:31,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-12 23:45:31,728 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:45:31,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:45:31,729 WARN L261 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 97 conjunts are in the unsatisfiable core [2021-11-12 23:45:31,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:32,707 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:45:32,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:33,970 INFO L354 Elim1Store]: treesize reduction 378, result has 41.8 percent of original size [2021-11-12 23:45:33,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 86 treesize of output 285 [2021-11-12 23:45:36,024 INFO L354 Elim1Store]: treesize reduction 628, result has 3.2 percent of original size [2021-11-12 23:45:36,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 87 treesize of output 36 [2021-11-12 23:45:36,094 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:45:36,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91207253] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:45:36,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [213321461] [2021-11-12 23:45:36,096 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:45:36,096 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:45:36,096 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:45:36,097 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:45:36,097 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:45:36,109 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,109 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:36,110 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,110 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:36,111 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:36,111 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,112 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:45:36,112 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:45:36,114 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_45|], 21=[|v_#valid_46|]} [2021-11-12 23:45:36,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:45:36,121 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,121 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:36,122 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,122 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:36,122 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:36,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,124 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:45:36,139 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:36,141 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:36,141 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:36,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,144 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,145 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:45:36,156 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:36,156 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:45:36,164 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:45:36,165 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:36,165 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,166 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:45:36,166 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:36,166 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,167 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:45:36,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:45:36,171 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_46|], 15=[|v_#valid_47|]} [2021-11-12 23:45:36,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,184 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:45:36,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:45:36,185 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:36,186 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,187 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:36,187 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:36,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,201 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:45:36,214 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,216 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:36,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,216 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:36,216 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:36,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,219 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,220 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,221 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:45:36,221 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:36,221 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:45:36,223 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,224 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:36,224 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,225 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 23:45:36,226 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size 144 [2021-11-12 23:45:36,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-12 23:45:36,234 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,235 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:45:36,235 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,236 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:45:36,236 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:36,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,241 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,242 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size [2021-11-12 23:45:36,243 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-12 23:45:36,243 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:36,244 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:145, output treesize:138 [2021-11-12 23:45:36,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,299 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,306 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:36,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,310 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:36,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-12 23:45:36,312 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:36,312 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,313 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:36,316 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-11-12 23:45:36,316 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:36,319 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,322 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-11-12 23:45:36,326 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 367 [2021-11-12 23:45:36,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:36,345 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,346 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:36,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,347 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:36,347 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:36,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:36,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 45 [2021-11-12 23:45:36,362 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-12 23:45:36,364 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-12 23:45:36,365 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:36,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,391 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,401 INFO L180 QuantifierPusher]: treesize reduction 124, result has 72.2 percent of original size [2021-11-12 23:45:36,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-11-12 23:45:36,406 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:45:36,406 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:454, output treesize:322 [2021-11-12 23:45:36,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,450 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:45:36,451 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:36,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:36,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:45:36,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:45:36,459 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,459 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:36,460 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:36,460 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:36,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,462 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,463 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,463 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:45:36,464 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:36,464 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:45:36,468 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:45:36,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:45:36,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-12 23:45:36,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,488 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-12 23:45:36,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,517 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:36,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:36,521 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:36,523 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:36,524 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,525 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:45:36,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,541 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:45:36,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,567 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:36,568 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:36,572 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:36,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:36,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,576 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:36,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,593 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:36,595 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:36,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,621 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:36,623 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:36,626 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:36,627 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:36,629 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:36,630 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:36,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,647 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:36,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:36,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:36,695 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:36,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:36,700 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:45:37,370 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:45:37,370 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:45:37,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 19, 16] total 59 [2021-11-12 23:45:37,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44221714] [2021-11-12 23:45:37,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:45:37,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2021-11-12 23:45:37,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:37,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-11-12 23:45:37,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=3790, Unknown=0, NotChecked=0, Total=4032 [2021-11-12 23:45:37,373 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 59 states, 59 states have (on average 1.5254237288135593) internal successors, (90), 59 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:40,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:40,537 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2021-11-12 23:45:40,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-12 23:45:40,538 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 1.5254237288135593) internal successors, (90), 59 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-12 23:45:40,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:40,538 INFO L225 Difference]: With dead ends: 63 [2021-11-12 23:45:40,538 INFO L226 Difference]: Without dead ends: 60 [2021-11-12 23:45:40,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 63 SyntacticMatches, 8 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2334 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=574, Invalid=7982, Unknown=0, NotChecked=0, Total=8556 [2021-11-12 23:45:40,541 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 11 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 661.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.80ms SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 758.06ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:40,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 119 Invalid, 1210 Unknown, 0 Unchecked, 3.80ms Time], IncrementalHoareTripleChecker [100 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 758.06ms Time] [2021-11-12 23:45:40,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-12 23:45:40,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 49. [2021-11-12 23:45:40,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 48 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:40,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2021-11-12 23:45:40,552 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 56 transitions. Word has length 34 [2021-11-12 23:45:40,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:40,552 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 56 transitions. [2021-11-12 23:45:40,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 1.5254237288135593) internal successors, (90), 59 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:40,553 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 56 transitions. [2021-11-12 23:45:40,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-12 23:45:40,553 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:40,553 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:40,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:40,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable640 [2021-11-12 23:45:40,759 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:45:40,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:40,760 INFO L85 PathProgramCache]: Analyzing trace with hash 721916124, now seen corresponding path program 13 times [2021-11-12 23:45:40,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:40,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483146002] [2021-11-12 23:45:40,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:40,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:40,858 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 16 proven. 20 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-12 23:45:40,859 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:40,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483146002] [2021-11-12 23:45:40,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483146002] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:45:40,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234724835] [2021-11-12 23:45:40,859 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:45:40,860 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:40,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:45:40,861 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:45:40,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-12 23:45:40,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:40,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-12 23:45:40,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:41,058 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-12 23:45:41,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:41,124 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-12 23:45:41,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234724835] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:45:41,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [262622408] [2021-11-12 23:45:41,126 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:45:41,126 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:45:41,126 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:45:41,126 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:45:41,126 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:45:41,133 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,134 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:41,134 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,134 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:45:41,134 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:41,135 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:41,136 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:45:41,148 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_48|], 21=[|v_#valid_49|]} [2021-11-12 23:45:41,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:45:41,155 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:41,155 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,156 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:41,156 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:41,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,157 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:45:41,172 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:41,176 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:41,177 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:41,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,178 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,179 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,180 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:45:41,180 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:41,180 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:45:41,195 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:45:41,196 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:41,197 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,197 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:45:41,198 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:41,198 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:45:41,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:45:41,202 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_49|], 15=[|v_#valid_50|]} [2021-11-12 23:45:41,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,215 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:45:41,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:45:41,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:41,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:41,217 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:41,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,220 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:45:41,233 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,235 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:41,236 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,236 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:41,236 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:41,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,239 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,239 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,240 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:45:41,241 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:41,241 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:45:41,242 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,243 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:41,263 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,264 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:41,266 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:45:41,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:41,280 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,280 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:41,281 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,281 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:41,282 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:41,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,286 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,287 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:45:41,290 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:41,290 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:45:41,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,347 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,351 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:41,355 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,355 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:41,356 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,356 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:45:41,357 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:41,358 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,358 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:41,360 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:45:41,360 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:41,362 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,365 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:45:41,367 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:45:41,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:41,384 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,384 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:41,385 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,385 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:41,385 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:41,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:41,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:45:41,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:41,399 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:41,403 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:41,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,419 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,429 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:45:41,432 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:45:41,433 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:45:41,433 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:45:41,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,468 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:45:41,469 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:41,469 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:41,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:45:41,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:45:41,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:41,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:41,477 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:41,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,478 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:45:41,480 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:41,480 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:45:41,484 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:45:41,486 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:45:41,487 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,489 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-12 23:45:41,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,505 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-12 23:45:41,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,538 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:41,539 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:41,543 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:41,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:41,546 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,547 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:45:41,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,563 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,565 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:45:41,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,588 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:41,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:41,593 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:41,597 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:41,599 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,600 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:45:41,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,616 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,619 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:45:41,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,641 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:41,642 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:41,644 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:41,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:41,646 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,647 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:45:41,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,657 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:41,659 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:45:41,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:41,683 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:41,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:41,689 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:45:42,133 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:45:42,133 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:45:42,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 22 [2021-11-12 23:45:42,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389198579] [2021-11-12 23:45:42,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:45:42,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-12 23:45:42,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:42,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-12 23:45:42,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=554, Unknown=0, NotChecked=0, Total=702 [2021-11-12 23:45:42,134 INFO L87 Difference]: Start difference. First operand 49 states and 56 transitions. Second operand has 22 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:42,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:42,347 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2021-11-12 23:45:42,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-12 23:45:42,348 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-12 23:45:42,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:42,348 INFO L225 Difference]: With dead ends: 104 [2021-11-12 23:45:42,348 INFO L226 Difference]: Without dead ends: 58 [2021-11-12 23:45:42,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=223, Invalid=833, Unknown=0, NotChecked=0, Total=1056 [2021-11-12 23:45:42,349 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 22 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.37ms SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 145.92ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:42,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 15 Invalid, 336 Unknown, 0 Unchecked, 1.37ms Time], IncrementalHoareTripleChecker [169 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 145.92ms Time] [2021-11-12 23:45:42,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-12 23:45:42,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 51. [2021-11-12 23:45:42,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.14) internal successors, (57), 50 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:42,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2021-11-12 23:45:42,360 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 35 [2021-11-12 23:45:42,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:42,360 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2021-11-12 23:45:42,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:42,360 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2021-11-12 23:45:42,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-12 23:45:42,361 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:42,361 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:42,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:42,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable698,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:42,575 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:45:42,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:42,576 INFO L85 PathProgramCache]: Analyzing trace with hash -29885819, now seen corresponding path program 14 times [2021-11-12 23:45:42,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:42,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030023562] [2021-11-12 23:45:42,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:42,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:42,692 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 10 proven. 26 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-12 23:45:42,692 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:42,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030023562] [2021-11-12 23:45:42,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030023562] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:45:42,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167401425] [2021-11-12 23:45:42,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:45:42,693 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:42,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:45:42,694 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:45:42,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-12 23:45:42,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-12 23:45:42,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:45:42,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-12 23:45:42,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:42,926 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-12 23:45:42,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:43,020 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-12 23:45:43,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167401425] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:45:43,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [848795614] [2021-11-12 23:45:43,022 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:45:43,022 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:45:43,022 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:45:43,022 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:45:43,022 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:45:43,026 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,026 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:43,027 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,027 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:45:43,028 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:43,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,028 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:43,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:45:43,031 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_51|], 21=[|v_#valid_52|]} [2021-11-12 23:45:43,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:45:43,041 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,041 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:43,042 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,042 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:43,042 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:43,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,045 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:45:43,059 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:43,061 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,061 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:43,061 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:43,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,064 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,065 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:45:43,066 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:43,067 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:45:43,070 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:45:43,071 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:43,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,072 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:45:43,072 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:43,073 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:45:43,075 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:45:43,077 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_52|], 15=[|v_#valid_53|]} [2021-11-12 23:45:43,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,091 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:45:43,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:45:43,092 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:43,093 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,094 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:43,094 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:43,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,098 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:45:43,114 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:43,117 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,117 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:43,117 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:43,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,121 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,123 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,124 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:45:43,124 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:43,125 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:45:43,127 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,128 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:43,129 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:43,131 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:45:43,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:43,141 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,142 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:43,143 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,143 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:43,144 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:43,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,148 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,150 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:45:43,152 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:43,152 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:45:43,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,196 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,203 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:43,207 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,207 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:43,208 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,208 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:45:43,209 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:43,209 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:43,213 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:45:43,213 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:43,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:45:43,224 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:45:43,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:45:43,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:43,261 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,261 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:43,261 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:43,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:43,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:43,275 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,276 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:43,278 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,280 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:43,280 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:43,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,305 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,314 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:45:43,316 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:45:43,317 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:45:43,317 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:45:43,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,346 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:45:43,347 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:43,347 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,348 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:43,348 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:45:43,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:45:43,355 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:43,355 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:43,356 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:43,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,367 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,368 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,369 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:45:43,369 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:43,369 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:45:43,372 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:45:43,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:45:43,374 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-12 23:45:43,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,385 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,391 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-12 23:45:43,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,407 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:43,407 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:43,410 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:43,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:43,412 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,413 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:43,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,423 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:43,425 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:43,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,440 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:43,441 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:43,444 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:43,445 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:43,446 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,446 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:43,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,458 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:43,459 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:43,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,482 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:43,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:43,487 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:43,488 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:43,489 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:45:43,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:43,504 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:45:43,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:43,519 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:43,519 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:43,523 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:45:43,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:45:43,932 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:45:43,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 23 [2021-11-12 23:45:43,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204443770] [2021-11-12 23:45:43,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:45:43,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-12 23:45:43,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:43,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-12 23:45:43,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=605, Unknown=0, NotChecked=0, Total=756 [2021-11-12 23:45:43,933 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand has 23 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 23 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:44,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:44,162 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2021-11-12 23:45:44,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:45:44,162 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 23 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-12 23:45:44,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:44,163 INFO L225 Difference]: With dead ends: 55 [2021-11-12 23:45:44,163 INFO L226 Difference]: Without dead ends: 40 [2021-11-12 23:45:44,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 93 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=243, Invalid=1017, Unknown=0, NotChecked=0, Total=1260 [2021-11-12 23:45:44,169 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 100.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.96ms SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 138.16ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:44,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 11 Invalid, 359 Unknown, 0 Unchecked, 0.96ms Time], IncrementalHoareTripleChecker [133 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 138.16ms Time] [2021-11-12 23:45:44,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-11-12 23:45:44,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-11-12 23:45:44,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.1282051282051282) internal successors, (44), 39 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:44,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2021-11-12 23:45:44,186 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 36 [2021-11-12 23:45:44,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:44,188 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2021-11-12 23:45:44,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 23 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:44,189 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2021-11-12 23:45:44,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-12 23:45:44,191 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:44,191 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:44,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:44,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable756 [2021-11-12 23:45:44,407 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:45:44,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:44,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1991993769, now seen corresponding path program 15 times [2021-11-12 23:45:44,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:44,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60828877] [2021-11-12 23:45:44,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:44,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:46,822 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 6 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:46,822 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:46,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60828877] [2021-11-12 23:45:46,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60828877] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:45:46,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307045796] [2021-11-12 23:45:46,823 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:45:46,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:46,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:45:46,832 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:45:46,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-12 23:45:46,891 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:45:46,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:45:46,894 WARN L261 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 115 conjunts are in the unsatisfiable core [2021-11-12 23:45:46,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:48,238 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:45:48,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:49,926 INFO L354 Elim1Store]: treesize reduction 567, result has 40.8 percent of original size [2021-11-12 23:45:49,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 104 treesize of output 408 [2021-11-12 23:45:54,200 INFO L354 Elim1Store]: treesize reduction 933, result has 2.6 percent of original size [2021-11-12 23:45:54,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 103 treesize of output 41 [2021-11-12 23:45:54,306 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-12 23:45:54,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307045796] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:45:54,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [311461013] [2021-11-12 23:45:54,308 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:45:54,308 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:45:54,309 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:45:54,309 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:45:54,309 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:45:54,313 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,313 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:54,314 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:45:54,314 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:54,314 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:54,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:45:54,317 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_54|], 21=[|v_#valid_55|]} [2021-11-12 23:45:54,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:45:54,328 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,329 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:54,329 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,329 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:54,329 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:54,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,331 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:45:54,342 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,344 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:54,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,344 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:45:54,345 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:54,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,346 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,347 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,347 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:45:54,348 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:54,348 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:45:54,350 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:45:54,351 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:54,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,351 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:45:54,352 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:54,352 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,352 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:45:54,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:45:54,354 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_55|], 15=[|v_#valid_56|]} [2021-11-12 23:45:54,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,366 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:45:54,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:45:54,367 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,368 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:54,368 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,368 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:45:54,368 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:54,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,371 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:45:54,386 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:54,388 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,389 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:45:54,389 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:54,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,391 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,392 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:45:54,393 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:54,393 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:45:54,396 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,397 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:54,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:54,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:45:54,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:54,407 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,407 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:54,408 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:54,408 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:54,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,411 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,412 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:45:54,413 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:54,413 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:45:54,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,451 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,459 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:54,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,476 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:54,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,477 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:45:54,478 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:54,478 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,479 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:45:54,482 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:45:54,482 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:54,485 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,488 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:45:54,492 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:45:54,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:45:54,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,521 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:54,521 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,522 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:45:54,522 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:54,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:54,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:45:54,534 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,543 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:54,544 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:45:54,544 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:54,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,560 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,570 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:45:54,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:45:54,574 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:45:54,575 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:45:54,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,617 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:45:54,618 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:54,618 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,619 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:54,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:45:54,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:45:54,625 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:54,625 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,626 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:45:54,626 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:54,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,627 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,628 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,629 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:45:54,629 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:54,629 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:45:54,634 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:45:54,635 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:45:54,636 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-12 23:45:54,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,654 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,657 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-12 23:45:54,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,681 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:54,682 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:54,686 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:54,687 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:54,689 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,690 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:45:54,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,705 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,708 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:45:54,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,723 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:54,724 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:54,727 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:54,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:54,728 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,729 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:54,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,740 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:54,741 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:54,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,758 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:54,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:54,763 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:45:54,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:45:54,765 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:54,766 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:45:54,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,777 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:45:54,779 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:45:54,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:54,795 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:45:54,796 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:45:54,805 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:45:55,541 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:45:55,541 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:45:55,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 22, 18] total 69 [2021-11-12 23:45:55,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672996933] [2021-11-12 23:45:55,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:45:55,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2021-11-12 23:45:55,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:55,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-11-12 23:45:55,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=5116, Unknown=0, NotChecked=0, Total=5402 [2021-11-12 23:45:55,544 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 69 states, 69 states have (on average 1.5072463768115942) internal successors, (104), 69 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:46:00,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:00,133 INFO L93 Difference]: Finished difference Result 71 states and 80 transitions. [2021-11-12 23:46:00,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-12 23:46:00,134 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 1.5072463768115942) internal successors, (104), 69 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-12 23:46:00,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:00,134 INFO L225 Difference]: With dead ends: 71 [2021-11-12 23:46:00,135 INFO L226 Difference]: Without dead ends: 68 [2021-11-12 23:46:00,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 71 SyntacticMatches, 10 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3380 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=738, Invalid=11034, Unknown=0, NotChecked=0, Total=11772 [2021-11-12 23:46:00,138 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 16 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 934.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.96ms SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1077.55ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:00,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 144 Invalid, 1630 Unknown, 0 Unchecked, 2.96ms Time], IncrementalHoareTripleChecker [141 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 1077.55ms Time] [2021-11-12 23:46:00,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-12 23:46:00,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 56. [2021-11-12 23:46:00,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.1454545454545455) internal successors, (63), 55 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:46:00,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2021-11-12 23:46:00,151 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 39 [2021-11-12 23:46:00,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:00,151 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2021-11-12 23:46:00,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 1.5072463768115942) internal successors, (104), 69 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:46:00,152 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2021-11-12 23:46:00,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-12 23:46:00,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:00,153 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:46:00,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:00,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable814,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:46:00,367 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:46:00,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:00,368 INFO L85 PathProgramCache]: Analyzing trace with hash 198689501, now seen corresponding path program 16 times [2021-11-12 23:46:00,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:46:00,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347046345] [2021-11-12 23:46:00,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:00,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:46:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:00,502 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 22 proven. 27 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-12 23:46:00,503 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:46:00,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347046345] [2021-11-12 23:46:00,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347046345] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:46:00,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149920278] [2021-11-12 23:46:00,503 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:46:00,503 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:46:00,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:46:00,504 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:46:00,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-12 23:46:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:00,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 23:46:00,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:00,741 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 28 proven. 21 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-12 23:46:00,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:00,821 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 28 proven. 21 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-12 23:46:00,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149920278] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:46:00,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [190995069] [2021-11-12 23:46:00,823 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:46:00,823 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:46:00,823 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:46:00,823 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:46:00,824 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:46:00,833 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,833 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:00,834 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,834 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:46:00,834 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:00,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,835 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:46:00,835 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:46:00,837 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_57|], 21=[|v_#valid_58|]} [2021-11-12 23:46:00,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:46:00,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:00,844 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:00,844 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:00,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:00,846 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:46:00,857 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,858 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:46:00,859 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:46:00,859 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:00,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:00,861 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:46:00,862 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:00,863 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:46:00,865 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:46:00,865 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:00,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:46:00,868 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:00,868 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:46:00,869 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:46:00,870 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_58|], 15=[|v_#valid_59|]} [2021-11-12 23:46:00,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,883 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:46:00,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:46:00,884 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,885 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:46:00,885 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,885 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:46:00,885 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:00,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:00,888 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:46:00,903 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,904 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:46:00,905 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,905 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:46:00,905 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:00,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:00,908 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,909 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,909 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:46:00,910 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:00,910 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:46:00,911 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,912 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:00,912 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 23:46:00,914 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size 144 [2021-11-12 23:46:00,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:00,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-12 23:46:00,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,923 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:46:00,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,923 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:46:00,923 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:00,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:00,926 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,927 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size [2021-11-12 23:46:00,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-12 23:46:00,928 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:00,929 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:145, output treesize:138 [2021-11-12 23:46:00,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:00,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:00,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:00,956 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,960 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:00,962 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,962 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:00,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,974 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-12 23:46:00,975 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:00,975 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:46:00,979 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-11-12 23:46:00,980 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:00,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:00,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-11-12 23:46:00,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 367 [2021-11-12 23:46:01,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:01,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:01,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:01,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 45 [2021-11-12 23:46:01,012 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:01,013 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-12 23:46:01,014 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:01,014 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-12 23:46:01,015 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:01,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:01,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:01,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:46:01,029 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:01,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:46:01,030 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:01,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:46:01,031 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:01,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,054 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:01,064 INFO L180 QuantifierPusher]: treesize reduction 124, result has 72.2 percent of original size [2021-11-12 23:46:01,068 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-11-12 23:46:01,069 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:46:01,069 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:454, output treesize:322 [2021-11-12 23:46:01,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,118 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:46:01,119 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:01,120 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:01,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:01,121 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:46:01,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:46:01,126 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:01,127 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:46:01,127 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:01,127 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:46:01,128 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:01,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,129 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:01,130 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:01,131 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:46:01,131 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:01,131 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:46:01,135 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:46:01,137 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:46:01,138 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:01,140 INFO L185 QuantifierPusher]: treesize reduction 7, result has 87.7 percent of original size 50 [2021-11-12 23:46:01,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,155 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:46:01,157 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-12 23:46:01,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,172 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:01,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:01,176 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:46:01,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:46:01,177 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:01,178 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:46:01,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,195 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:46:01,198 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:46:01,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,224 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:01,225 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:01,229 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:46:01,230 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:46:01,232 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:01,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:46:01,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,248 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:01,251 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:46:01,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,274 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:01,275 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:01,279 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:46:01,280 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:46:01,282 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:01,284 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:46:01,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,297 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:01,299 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:46:01,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:01,315 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:01,316 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:01,322 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:46:01,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:46:01,763 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:46:01,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 25 [2021-11-12 23:46:01,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268649054] [2021-11-12 23:46:01,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:46:01,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-12 23:46:01,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:46:01,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-12 23:46:01,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=687, Unknown=0, NotChecked=0, Total=870 [2021-11-12 23:46:01,765 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand has 25 states, 25 states have (on average 1.48) internal successors, (37), 25 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:46:01,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:01,991 INFO L93 Difference]: Finished difference Result 118 states and 133 transitions. [2021-11-12 23:46:01,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-12 23:46:01,992 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.48) internal successors, (37), 25 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-12 23:46:01,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:01,992 INFO L225 Difference]: With dead ends: 118 [2021-11-12 23:46:01,993 INFO L226 Difference]: Without dead ends: 65 [2021-11-12 23:46:01,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=281, Invalid=1051, Unknown=0, NotChecked=0, Total=1332 [2021-11-12 23:46:01,994 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 30 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 125.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.82ms SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 149.48ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:01,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 19 Invalid, 369 Unknown, 0 Unchecked, 0.82ms Time], IncrementalHoareTripleChecker [185 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 149.48ms Time] [2021-11-12 23:46:01,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-12 23:46:02,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 58. [2021-11-12 23:46:02,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.1228070175438596) internal successors, (64), 57 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:46:02,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 64 transitions. [2021-11-12 23:46:02,009 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 64 transitions. Word has length 40 [2021-11-12 23:46:02,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:02,010 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 64 transitions. [2021-11-12 23:46:02,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.48) internal successors, (37), 25 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:46:02,010 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 64 transitions. [2021-11-12 23:46:02,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-12 23:46:02,011 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:02,011 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:46:02,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:02,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable872 [2021-11-12 23:46:02,215 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:46:02,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:02,216 INFO L85 PathProgramCache]: Analyzing trace with hash 65272532, now seen corresponding path program 17 times [2021-11-12 23:46:02,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:46:02,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999685480] [2021-11-12 23:46:02,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:02,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:46:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:02,355 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 15 proven. 34 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-12 23:46:02,355 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:46:02,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999685480] [2021-11-12 23:46:02,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999685480] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:46:02,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971059547] [2021-11-12 23:46:02,356 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:46:02,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:46:02,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:46:02,357 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:46:02,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-12 23:46:02,458 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-12 23:46:02,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:46:02,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 23:46:02,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:02,660 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 21 proven. 28 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-12 23:46:02,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:02,774 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 21 proven. 28 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-12 23:46:02,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971059547] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:46:02,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [220803984] [2021-11-12 23:46:02,776 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:46:02,777 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:46:02,777 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:46:02,777 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:46:02,777 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:46:02,781 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,781 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:02,781 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,782 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:46:02,782 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:02,783 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,783 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:46:02,784 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:46:02,786 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_60|], 21=[|v_#valid_61|]} [2021-11-12 23:46:02,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:46:02,794 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:02,794 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,795 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:02,795 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:02,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:02,797 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:46:02,810 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,812 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:46:02,812 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:46:02,813 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:02,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:02,816 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,817 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,818 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:46:02,818 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:02,818 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:46:02,822 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:46:02,822 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:02,823 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:46:02,824 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:02,824 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:46:02,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:46:02,828 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_61|], 15=[|v_#valid_62|]} [2021-11-12 23:46:02,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,842 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:46:02,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:46:02,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:46:02,844 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,845 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:46:02,845 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:02,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:02,849 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:46:02,861 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:46:02,863 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:46:02,864 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:02,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:02,867 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,869 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:46:02,871 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:02,871 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:46:02,873 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,874 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:02,875 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,875 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:46:02,877 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:46:02,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:46:02,887 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,888 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:46:02,889 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,889 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:46:02,889 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:02,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:02,894 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,895 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,897 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:46:02,897 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:02,898 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:46:02,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:02,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:02,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:02,940 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,947 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:02,950 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,951 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:02,951 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,952 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:46:02,952 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:02,953 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:46:02,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:46:02,957 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:02,960 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,963 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:46:02,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:46:02,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:46:02,986 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,987 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:46:02,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,988 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:46:02,988 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:02,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:03,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:03,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:46:03,005 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:03,006 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:46:03,006 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:03,007 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:46:03,007 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:03,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,032 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:03,043 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:46:03,046 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:46:03,047 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:46:03,048 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:46:03,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,088 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:46:03,089 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:03,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:03,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:03,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:46:03,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:46:03,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:03,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:46:03,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:03,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:46:03,096 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:03,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,098 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:03,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:03,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:46:03,100 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:03,100 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:46:03,104 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:46:03,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:46:03,106 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:03,108 INFO L185 QuantifierPusher]: treesize reduction 3, result has 94.3 percent of original size 50 [2021-11-12 23:46:03,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,147 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:46:03,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-12 23:46:03,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,173 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:03,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:03,177 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:46:03,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:46:03,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:03,181 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:46:03,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,197 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:03,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:46:03,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,219 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:03,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:03,223 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:46:03,224 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:46:03,224 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:03,225 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:46:03,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,235 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:03,237 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:46:03,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,265 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:03,266 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:03,269 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:46:03,270 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:46:03,271 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:03,272 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:46:03,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,288 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:46:03,291 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:46:03,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,318 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:03,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:03,324 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:46:03,741 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:46:03,741 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:46:03,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 26 [2021-11-12 23:46:03,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038980000] [2021-11-12 23:46:03,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:46:03,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-12 23:46:03,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:46:03,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-12 23:46:03,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=745, Unknown=0, NotChecked=0, Total=930 [2021-11-12 23:46:03,743 INFO L87 Difference]: Start difference. First operand 58 states and 64 transitions. Second operand has 26 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 26 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:46:03,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:03,966 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2021-11-12 23:46:03,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-12 23:46:03,967 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 26 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-12 23:46:03,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:03,967 INFO L225 Difference]: With dead ends: 62 [2021-11-12 23:46:03,967 INFO L226 Difference]: Without dead ends: 45 [2021-11-12 23:46:03,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 107 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=301, Invalid=1259, Unknown=0, NotChecked=0, Total=1560 [2021-11-12 23:46:03,968 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 110.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.69ms SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 133.54ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:03,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 13 Invalid, 397 Unknown, 0 Unchecked, 0.69ms Time], IncrementalHoareTripleChecker [132 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 133.54ms Time] [2021-11-12 23:46:03,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-12 23:46:03,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-11-12 23:46:03,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.1136363636363635) internal successors, (49), 44 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:46:03,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2021-11-12 23:46:03,980 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 41 [2021-11-12 23:46:03,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:03,980 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2021-11-12 23:46:03,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 26 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:46:03,981 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2021-11-12 23:46:03,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-12 23:46:03,981 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:03,981 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:46:04,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:04,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable930 [2021-11-12 23:46:04,200 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:46:04,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:04,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1775187002, now seen corresponding path program 18 times [2021-11-12 23:46:04,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:46:04,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522482786] [2021-11-12 23:46:04,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:04,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:46:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:07,258 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 4 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:46:07,259 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:46:07,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522482786] [2021-11-12 23:46:07,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522482786] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:46:07,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891541446] [2021-11-12 23:46:07,259 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:46:07,259 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:46:07,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:46:07,260 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:46:07,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-12 23:46:07,312 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:46:07,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:46:07,316 WARN L261 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 133 conjunts are in the unsatisfiable core [2021-11-12 23:46:07,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:09,122 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 139 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:46:09,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:11,705 INFO L354 Elim1Store]: treesize reduction 794, result has 40.2 percent of original size [2021-11-12 23:46:11,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 121 treesize of output 552 [2021-11-12 23:46:19,047 INFO L354 Elim1Store]: treesize reduction 1298, result has 2.2 percent of original size [2021-11-12 23:46:19,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 120 treesize of output 47 [2021-11-12 23:46:19,141 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-12 23:46:19,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891541446] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:46:19,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [624321103] [2021-11-12 23:46:19,142 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:46:19,143 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:46:19,143 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:46:19,143 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:46:19,143 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:46:19,152 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,152 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:19,153 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,153 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:46:19,153 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:19,154 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,154 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:46:19,154 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:46:19,156 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_63|], 21=[|v_#valid_64|]} [2021-11-12 23:46:19,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:46:19,163 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,163 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:19,164 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,164 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:19,164 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:19,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,166 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:46:19,179 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,181 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:46:19,182 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,182 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:46:19,183 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:19,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,185 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,186 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,188 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:46:19,188 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:19,188 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:46:19,195 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:46:19,196 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:19,197 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,197 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:46:19,198 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:19,198 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,198 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:46:19,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:46:19,202 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_64|], 15=[|v_#valid_65|]} [2021-11-12 23:46:19,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,215 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:46:19,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:46:19,215 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,216 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:46:19,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:46:19,217 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:19,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,220 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:46:19,230 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,232 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:46:19,232 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,232 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:46:19,232 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:19,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,235 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,236 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,237 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:46:19,237 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:19,237 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:46:19,239 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,240 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:19,240 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,241 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:46:19,242 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:46:19,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:46:19,250 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,251 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:46:19,251 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,251 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:46:19,251 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:19,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,254 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,255 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:46:19,257 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:19,257 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:46:19,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,296 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,300 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:19,301 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,302 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:19,302 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:46:19,303 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:19,303 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,303 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:46:19,305 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:46:19,306 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:19,307 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:46:19,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:46:19,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:46:19,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:46:19,337 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:46:19,337 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:19,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:46:19,348 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,349 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:46:19,349 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,350 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:46:19,350 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:19,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,366 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,371 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:46:19,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:46:19,374 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:46:19,374 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:46:19,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,411 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:46:19,412 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:19,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:19,414 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:46:19,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:46:19,419 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,419 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:46:19,420 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,420 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:46:19,420 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:19,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,422 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,423 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,423 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:46:19,424 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:19,424 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:46:19,428 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:46:19,429 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:46:19,430 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,432 INFO L185 QuantifierPusher]: treesize reduction 3, result has 94.3 percent of original size 50 [2021-11-12 23:46:19,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,449 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:46:19,452 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-12 23:46:19,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,474 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:19,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:19,479 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:46:19,481 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:46:19,482 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,483 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:46:19,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,495 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:46:19,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:46:19,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,512 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:19,513 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:19,516 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:46:19,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:46:19,518 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:46:19,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:46:19,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,552 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:19,553 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:19,556 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:46:19,557 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:46:19,558 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:46:19,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,569 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,570 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:46:19,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,597 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:19,599 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:19,603 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:46:20,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:46:20,431 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:46:20,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 25, 20] total 79 [2021-11-12 23:46:20,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082141032] [2021-11-12 23:46:20,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:46:20,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2021-11-12 23:46:20,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:46:20,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2021-11-12 23:46:20,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=346, Invalid=6626, Unknown=0, NotChecked=0, Total=6972 [2021-11-12 23:46:20,433 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 79 states, 79 states have (on average 1.4936708860759493) internal successors, (118), 79 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:46:26,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:26,350 INFO L93 Difference]: Finished difference Result 79 states and 88 transitions. [2021-11-12 23:46:26,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-12 23:46:26,351 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 79 states have (on average 1.4936708860759493) internal successors, (118), 79 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-12 23:46:26,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:26,352 INFO L225 Difference]: With dead ends: 79 [2021-11-12 23:46:26,352 INFO L226 Difference]: Without dead ends: 76 [2021-11-12 23:46:26,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 79 SyntacticMatches, 12 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4659 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=925, Invalid=14575, Unknown=0, NotChecked=0, Total=15500 [2021-11-12 23:46:26,354 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 15 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 1932 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1224.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 2090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.58ms SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1415.85ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:26,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 168 Invalid, 2090 Unknown, 0 Unchecked, 3.58ms Time], IncrementalHoareTripleChecker [158 Valid, 1932 Invalid, 0 Unknown, 0 Unchecked, 1415.85ms Time] [2021-11-12 23:46:26,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-11-12 23:46:26,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 63. [2021-11-12 23:46:26,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.1290322580645162) internal successors, (70), 62 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:46:26,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2021-11-12 23:46:26,372 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 44 [2021-11-12 23:46:26,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:26,372 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2021-11-12 23:46:26,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 1.4936708860759493) internal successors, (118), 79 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:46:26,373 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2021-11-12 23:46:26,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-12 23:46:26,373 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:26,373 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:46:26,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:26,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable988,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:46:26,587 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:46:26,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:26,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1967093956, now seen corresponding path program 19 times [2021-11-12 23:46:26,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:46:26,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801374640] [2021-11-12 23:46:26,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:26,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:46:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:26,743 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 29 proven. 35 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-12 23:46:26,743 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:46:26,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801374640] [2021-11-12 23:46:26,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801374640] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:46:26,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277437319] [2021-11-12 23:46:26,744 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:46:26,744 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:46:26,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:46:26,748 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:46:26,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-12 23:46:26,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:26,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 23:46:26,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:27,076 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-12 23:46:27,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:27,162 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-12 23:46:27,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277437319] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:46:27,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1899096668] [2021-11-12 23:46:27,164 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:46:27,164 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:46:27,164 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:46:27,164 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:46:27,164 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:46:27,171 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,171 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:27,171 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,172 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:46:27,172 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:27,172 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,172 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:46:27,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:46:27,175 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_66|], 21=[|v_#valid_67|]} [2021-11-12 23:46:27,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:46:27,181 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,182 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:27,182 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,182 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:27,182 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:27,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,184 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:46:27,195 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,197 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:46:27,197 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,208 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:46:27,208 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:27,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,210 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,211 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,212 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:46:27,212 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:27,212 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:46:27,215 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:46:27,215 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:27,215 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,216 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:46:27,216 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:27,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:46:27,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:46:27,219 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_67|], 15=[|v_#valid_68|]} [2021-11-12 23:46:27,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,233 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:46:27,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:46:27,233 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:46:27,235 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,235 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:46:27,235 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:27,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,243 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:46:27,254 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,255 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:46:27,255 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:46:27,256 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:27,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,258 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,259 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,260 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:46:27,260 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:27,260 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:46:27,262 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,263 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:27,275 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,276 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 23:46:27,278 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size 144 [2021-11-12 23:46:27,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-12 23:46:27,289 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,290 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:46:27,291 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,291 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:46:27,291 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:27,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,296 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,298 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size [2021-11-12 23:46:27,299 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-12 23:46:27,300 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:27,300 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:145, output treesize:138 [2021-11-12 23:46:27,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,341 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,348 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:27,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,352 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:27,352 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-12 23:46:27,353 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:27,354 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,354 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:46:27,357 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-11-12 23:46:27,358 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:27,360 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-11-12 23:46:27,367 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 367 [2021-11-12 23:46:27,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 45 [2021-11-12 23:46:27,390 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,391 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-12 23:46:27,392 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,392 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-12 23:46:27,392 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:27,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:27,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:46:27,407 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:46:27,408 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,409 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:46:27,409 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:27,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,433 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,443 INFO L180 QuantifierPusher]: treesize reduction 124, result has 72.2 percent of original size [2021-11-12 23:46:27,447 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-11-12 23:46:27,448 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:46:27,448 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:454, output treesize:322 [2021-11-12 23:46:27,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,489 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:46:27,490 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:27,490 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:27,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:46:27,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:46:27,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:46:27,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:46:27,498 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:27,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,499 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,500 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,501 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:46:27,501 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:27,501 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:46:27,509 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:46:27,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:46:27,512 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,513 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-12 23:46:27,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,531 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-12 23:46:27,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,553 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:27,554 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:27,558 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:46:27,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:46:27,561 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,562 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:46:27,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,578 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:46:27,580 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:46:27,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,603 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:27,604 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:27,608 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:46:27,609 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:46:27,611 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,612 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:46:27,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,628 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,631 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:46:27,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,653 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:27,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:27,658 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:46:27,659 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:46:27,661 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:27,662 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:46:27,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,678 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:46:27,680 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:46:27,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:27,703 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:27,704 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:27,708 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:46:28,254 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:46:28,254 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:46:28,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 28 [2021-11-12 23:46:28,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929206939] [2021-11-12 23:46:28,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:46:28,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-12 23:46:28,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:46:28,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-12 23:46:28,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=834, Unknown=0, NotChecked=0, Total=1056 [2021-11-12 23:46:28,256 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand has 28 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:46:28,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:28,517 INFO L93 Difference]: Finished difference Result 132 states and 147 transitions. [2021-11-12 23:46:28,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-12 23:46:28,517 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-12 23:46:28,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:28,518 INFO L225 Difference]: With dead ends: 132 [2021-11-12 23:46:28,518 INFO L226 Difference]: Without dead ends: 72 [2021-11-12 23:46:28,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=346, Invalid=1294, Unknown=0, NotChecked=0, Total=1640 [2021-11-12 23:46:28,519 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 26 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 135.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.92ms SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 168.11ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:28,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 11 Invalid, 465 Unknown, 0 Unchecked, 0.92ms Time], IncrementalHoareTripleChecker [220 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 168.11ms Time] [2021-11-12 23:46:28,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-11-12 23:46:28,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 65. [2021-11-12 23:46:28,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.109375) internal successors, (71), 64 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:46:28,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2021-11-12 23:46:28,532 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 45 [2021-11-12 23:46:28,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:28,532 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2021-11-12 23:46:28,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:46:28,532 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2021-11-12 23:46:28,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-12 23:46:28,532 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:28,532 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:46:28,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:28,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1046 [2021-11-12 23:46:28,733 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:46:28,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:28,733 INFO L85 PathProgramCache]: Analyzing trace with hash 976990629, now seen corresponding path program 20 times [2021-11-12 23:46:28,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:46:28,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206766682] [2021-11-12 23:46:28,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:28,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:46:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:28,907 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 21 proven. 43 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-11-12 23:46:28,907 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:46:28,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206766682] [2021-11-12 23:46:28,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206766682] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:46:28,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370129137] [2021-11-12 23:46:28,907 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:46:28,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:46:28,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:46:28,912 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:46:28,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-12 23:46:29,007 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-12 23:46:29,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:46:29,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 23:46:29,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:29,196 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 28 proven. 36 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-11-12 23:46:29,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:29,291 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 28 proven. 36 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-11-12 23:46:29,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370129137] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:46:29,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [593329215] [2021-11-12 23:46:29,292 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:46:29,292 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:46:29,293 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:46:29,293 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:46:29,293 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:46:29,296 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,297 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:29,297 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,297 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:46:29,297 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:29,298 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,298 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:46:29,299 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:46:29,302 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_69|], 21=[|v_#valid_70|]} [2021-11-12 23:46:29,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:46:29,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:29,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,312 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:29,312 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:29,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,313 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:46:29,353 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,359 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:46:29,360 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,360 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:46:29,360 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:29,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,363 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,364 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,365 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:46:29,366 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:29,366 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:46:29,369 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:46:29,370 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:29,371 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,371 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:46:29,372 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:29,372 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:46:29,374 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:46:29,377 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_70|], 15=[|v_#valid_71|]} [2021-11-12 23:46:29,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,393 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:46:29,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:46:29,394 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,395 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:46:29,396 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,396 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:46:29,396 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:29,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,400 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:46:29,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,415 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:46:29,415 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:46:29,416 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:29,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,420 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,421 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,423 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:46:29,423 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:29,424 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:46:29,426 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,427 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:29,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,428 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:46:29,430 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:46:29,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:46:29,440 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,441 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:46:29,442 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,442 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:46:29,442 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:29,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,447 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,448 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,450 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:46:29,451 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:29,451 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:46:29,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,493 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,500 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:29,503 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,504 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:29,504 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,505 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:46:29,505 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:29,506 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,506 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:46:29,509 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:46:29,510 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:29,513 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:46:29,519 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:46:29,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:46:29,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:46:29,545 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,545 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:46:29,546 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:29,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:29,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:46:29,560 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,561 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:46:29,562 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:46:29,562 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:29,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,587 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,597 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:46:29,601 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:46:29,602 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:46:29,602 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:46:29,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,650 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:46:29,651 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:29,651 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:29,653 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:46:29,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:46:29,658 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:46:29,658 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,659 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:46:29,659 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:29,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,661 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,662 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,662 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:46:29,663 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:29,663 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:46:29,667 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:46:29,668 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:46:29,669 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,670 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-12 23:46:29,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,685 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,688 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-12 23:46:29,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,725 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:29,726 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:29,730 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:46:29,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:46:29,732 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:46:29,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,748 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:46:29,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,773 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:29,774 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:29,777 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:46:29,779 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:46:29,780 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,781 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:46:29,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,795 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,798 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:46:29,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,820 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:29,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:29,825 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:46:29,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:46:29,827 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:29,829 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:46:29,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,845 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:46:29,847 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:46:29,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:29,869 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:29,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:29,875 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:46:30,321 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:46:30,321 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:46:30,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 29 [2021-11-12 23:46:30,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871130846] [2021-11-12 23:46:30,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:46:30,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-12 23:46:30,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:46:30,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-12 23:46:30,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=899, Unknown=0, NotChecked=0, Total=1122 [2021-11-12 23:46:30,323 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand has 29 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:46:30,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:30,593 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2021-11-12 23:46:30,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-12 23:46:30,594 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-12 23:46:30,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:30,594 INFO L225 Difference]: With dead ends: 69 [2021-11-12 23:46:30,594 INFO L226 Difference]: Without dead ends: 50 [2021-11-12 23:46:30,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 121 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=366, Invalid=1526, Unknown=0, NotChecked=0, Total=1892 [2021-11-12 23:46:30,595 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 135.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.90ms SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 165.66ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:30,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 7 Invalid, 498 Unknown, 0 Unchecked, 0.90ms Time], IncrementalHoareTripleChecker [174 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 165.66ms Time] [2021-11-12 23:46:30,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-12 23:46:30,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-12 23:46:30,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.1020408163265305) internal successors, (54), 49 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:46:30,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2021-11-12 23:46:30,604 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 46 [2021-11-12 23:46:30,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:30,604 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2021-11-12 23:46:30,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:46:30,605 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2021-11-12 23:46:30,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-12 23:46:30,605 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:30,605 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:46:30,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:30,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1104 [2021-11-12 23:46:30,806 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:46:30,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:30,806 INFO L85 PathProgramCache]: Analyzing trace with hash 424409865, now seen corresponding path program 21 times [2021-11-12 23:46:30,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:46:30,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588919725] [2021-11-12 23:46:30,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:30,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:46:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:34,802 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 3 proven. 177 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:46:34,802 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:46:34,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588919725] [2021-11-12 23:46:34,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588919725] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:46:34,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077904659] [2021-11-12 23:46:34,803 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:46:34,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:46:34,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:46:34,803 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:46:34,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-12 23:46:34,862 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:46:34,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:46:34,865 WARN L261 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 151 conjunts are in the unsatisfiable core [2021-11-12 23:46:34,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:37,370 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 179 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:46:37,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:41,242 INFO L354 Elim1Store]: treesize reduction 1059, result has 39.7 percent of original size [2021-11-12 23:46:41,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 137 treesize of output 717 [2021-11-12 23:46:53,350 INFO L354 Elim1Store]: treesize reduction 1723, result has 1.9 percent of original size [2021-11-12 23:46:53,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 138 treesize of output 54 [2021-11-12 23:46:53,468 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-12 23:46:53,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077904659] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:46:53,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2080745474] [2021-11-12 23:46:53,469 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:46:53,469 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:46:53,470 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:46:53,470 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:46:53,470 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:46:53,481 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,481 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:53,482 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,482 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:46:53,483 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:53,483 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:46:53,485 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:46:53,487 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_72|], 21=[|v_#valid_73|]} [2021-11-12 23:46:53,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:46:53,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:53,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:53,497 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:53,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,500 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:46:53,512 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:46:53,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:46:53,514 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:53,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,516 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,517 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:46:53,517 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:53,518 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:46:53,520 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:46:53,520 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:53,522 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,522 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:46:53,522 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:53,523 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,523 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:46:53,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:46:53,525 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_73|], 15=[|v_#valid_74|]} [2021-11-12 23:46:53,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,537 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:46:53,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:46:53,537 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:46:53,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,543 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:46:53,543 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:53,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,546 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:46:53,556 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:46:53,561 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,561 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:46:53,561 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:53,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,564 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,564 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,565 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:46:53,566 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:53,566 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:46:53,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,568 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:53,568 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,568 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 23:46:53,570 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size 144 [2021-11-12 23:46:53,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-12 23:46:53,578 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,579 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:46:53,579 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,579 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:46:53,579 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:53,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,582 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,583 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size [2021-11-12 23:46:53,584 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-12 23:46:53,584 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:53,585 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:145, output treesize:138 [2021-11-12 23:46:53,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,611 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,614 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:53,616 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,617 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:53,617 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,617 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-12 23:46:53,618 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:53,618 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,618 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:46:53,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-11-12 23:46:53,620 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:53,622 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,623 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-11-12 23:46:53,626 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 367 [2021-11-12 23:46:53,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:46:53,645 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,646 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:46:53,646 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,647 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:46:53,647 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:53,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:53,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 45 [2021-11-12 23:46:53,659 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-12 23:46:53,660 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,661 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-12 23:46:53,661 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:53,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,676 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,682 INFO L180 QuantifierPusher]: treesize reduction 124, result has 72.2 percent of original size [2021-11-12 23:46:53,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-11-12 23:46:53,684 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:46:53,685 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:454, output treesize:322 [2021-11-12 23:46:53,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,720 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:46:53,721 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:53,722 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,722 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:53,723 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:46:53,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:46:53,728 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:46:53,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:46:53,729 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:53,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,731 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,732 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:46:53,733 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:53,733 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:46:53,737 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:46:53,738 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:46:53,740 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,741 INFO L185 QuantifierPusher]: treesize reduction 7, result has 87.7 percent of original size 50 [2021-11-12 23:46:53,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,756 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:46:53,759 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-12 23:46:53,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,793 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:53,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:53,797 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:46:53,798 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:46:53,799 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,799 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:46:53,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,811 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:46:53,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:46:53,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,831 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:53,832 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:53,835 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:46:53,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:46:53,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,838 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:46:53,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,848 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:46:53,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:46:53,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,880 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:53,881 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:53,885 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:46:53,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:46:53,886 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,887 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:46:53,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,898 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:53,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:46:53,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:53,914 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:46:53,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:46:53,918 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:46:54,828 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:46:54,828 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:46:54,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 28, 22] total 89 [2021-11-12 23:46:54,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663200089] [2021-11-12 23:46:54,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:46:54,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2021-11-12 23:46:54,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:46:54,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2021-11-12 23:46:54,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=8375, Unknown=0, NotChecked=0, Total=8742 [2021-11-12 23:46:54,831 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 89 states, 89 states have (on average 1.4831460674157304) internal successors, (132), 89 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:02,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:02,772 INFO L93 Difference]: Finished difference Result 87 states and 96 transitions. [2021-11-12 23:47:02,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-12 23:47:02,772 INFO L78 Accepts]: Start accepts. Automaton has has 89 states, 89 states have (on average 1.4831460674157304) internal successors, (132), 89 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-12 23:47:02,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:02,773 INFO L225 Difference]: With dead ends: 87 [2021-11-12 23:47:02,773 INFO L226 Difference]: Without dead ends: 84 [2021-11-12 23:47:02,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 88 SyntacticMatches, 13 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4711 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=961, Invalid=17399, Unknown=0, NotChecked=0, Total=18360 [2021-11-12 23:47:02,775 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 12 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 2314 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1495.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 2478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.21ms SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 2314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1711.88ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:02,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 180 Invalid, 2478 Unknown, 0 Unchecked, 4.21ms Time], IncrementalHoareTripleChecker [164 Valid, 2314 Invalid, 0 Unknown, 0 Unchecked, 1711.88ms Time] [2021-11-12 23:47:02,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-11-12 23:47:02,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 70. [2021-11-12 23:47:02,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.1159420289855073) internal successors, (77), 69 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:02,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2021-11-12 23:47:02,790 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 49 [2021-11-12 23:47:02,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:02,790 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2021-11-12 23:47:02,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 89 states have (on average 1.4831460674157304) internal successors, (132), 89 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:02,791 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2021-11-12 23:47:02,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-12 23:47:02,791 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:02,791 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:02,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:02,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1162,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:47:02,992 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:02,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:02,992 INFO L85 PathProgramCache]: Analyzing trace with hash -852919811, now seen corresponding path program 22 times [2021-11-12 23:47:02,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:47:02,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311680942] [2021-11-12 23:47:02,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:02,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:47:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:03,168 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 37 proven. 44 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-12 23:47:03,168 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:47:03,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311680942] [2021-11-12 23:47:03,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311680942] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:47:03,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856122908] [2021-11-12 23:47:03,169 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:47:03,169 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:47:03,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:47:03,172 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:47:03,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-12 23:47:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:03,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 23:47:03,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:03,525 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 45 proven. 36 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-12 23:47:03,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:03,617 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 45 proven. 36 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-12 23:47:03,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856122908] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:47:03,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [502643060] [2021-11-12 23:47:03,619 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:47:03,619 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:47:03,620 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:47:03,620 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:47:03,620 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:47:03,644 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,645 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:03,647 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:47:03,648 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:03,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:47:03,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:47:03,651 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_75|], 21=[|v_#valid_76|]} [2021-11-12 23:47:03,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:47:03,660 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:47:03,660 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,661 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:47:03,661 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:03,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:03,664 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:47:03,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:47:03,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:47:03,679 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:03,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:03,682 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,683 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:47:03,685 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:47:03,685 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:47:03,688 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:47:03,689 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:03,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,690 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:47:03,690 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:03,691 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,691 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:47:03,693 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:47:03,695 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_76|], 15=[|v_#valid_77|]} [2021-11-12 23:47:03,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,709 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:47:03,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:47:03,710 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,711 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:47:03,711 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,711 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:47:03,712 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:03,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:03,715 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:47:03,728 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:47:03,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,730 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:47:03,731 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:03,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:03,734 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,736 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:47:03,738 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:47:03,738 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:47:03,744 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,746 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:03,746 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,746 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 23:47:03,749 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size 144 [2021-11-12 23:47:03,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-12 23:47:03,758 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,759 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:47:03,759 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:47:03,760 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:03,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:03,764 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,766 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size [2021-11-12 23:47:03,768 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-12 23:47:03,768 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:47:03,769 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:145, output treesize:138 [2021-11-12 23:47:03,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:03,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:03,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:03,808 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,815 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:03,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,819 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:03,819 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,819 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:47:03,820 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:03,820 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-12 23:47:03,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-11-12 23:47:03,824 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:03,827 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,830 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-11-12 23:47:03,834 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 367 [2021-11-12 23:47:03,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 45 [2021-11-12 23:47:03,855 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,857 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-12 23:47:03,857 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,858 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-12 23:47:03,858 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:03,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:03,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:47:03,871 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:47:03,872 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,872 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:47:03,873 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:03,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:03,894 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,904 INFO L180 QuantifierPusher]: treesize reduction 124, result has 72.2 percent of original size [2021-11-12 23:47:03,908 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-11-12 23:47:03,909 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:47:03,909 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:454, output treesize:322 [2021-11-12 23:47:03,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:03,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:03,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:03,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:03,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:03,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:03,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:03,949 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:47:03,951 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:03,951 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,951 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:47:03,952 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:47:03,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:47:03,957 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:47:03,958 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,958 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:47:03,958 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:03,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:03,960 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,975 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:47:03,975 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:47:03,976 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:47:03,981 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:47:03,982 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:47:03,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:03,985 INFO L185 QuantifierPusher]: treesize reduction 3, result has 94.3 percent of original size 50 [2021-11-12 23:47:03,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:03,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:03,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,002 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:47:04,006 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-12 23:47:04,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,028 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:47:04,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:47:04,033 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:47:04,034 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:47:04,035 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:04,036 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:47:04,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,046 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:04,048 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:47:04,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,062 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:47:04,063 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:47:04,066 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:47:04,067 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:47:04,067 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:04,069 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:47:04,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,080 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:47:04,081 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:47:04,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,096 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:47:04,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:47:04,099 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:47:04,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:47:04,101 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:04,102 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:47:04,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,111 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:04,113 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:47:04,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:04,130 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:47:04,130 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:47:04,134 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:47:04,600 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:47:04,601 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:47:04,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 31 [2021-11-12 23:47:04,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627657418] [2021-11-12 23:47:04,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:47:04,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-12 23:47:04,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:47:04,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-12 23:47:04,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=995, Unknown=0, NotChecked=0, Total=1260 [2021-11-12 23:47:04,603 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand has 31 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 31 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:04,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:04,918 INFO L93 Difference]: Finished difference Result 146 states and 161 transitions. [2021-11-12 23:47:04,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-12 23:47:04,924 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 31 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-12 23:47:04,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:04,925 INFO L225 Difference]: With dead ends: 146 [2021-11-12 23:47:04,925 INFO L226 Difference]: Without dead ends: 79 [2021-11-12 23:47:04,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=418, Invalid=1562, Unknown=0, NotChecked=0, Total=1980 [2021-11-12 23:47:04,926 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 24 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 165.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.10ms SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 199.69ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:04,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 21 Invalid, 539 Unknown, 0 Unchecked, 1.10ms Time], IncrementalHoareTripleChecker [258 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 199.69ms Time] [2021-11-12 23:47:04,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-12 23:47:04,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 72. [2021-11-12 23:47:04,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.0985915492957747) internal successors, (78), 71 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:04,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 78 transitions. [2021-11-12 23:47:04,942 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 78 transitions. Word has length 50 [2021-11-12 23:47:04,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:04,942 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 78 transitions. [2021-11-12 23:47:04,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 31 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:04,942 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 78 transitions. [2021-11-12 23:47:04,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-12 23:47:04,942 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:04,943 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:04,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:05,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1220 [2021-11-12 23:47:05,147 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:05,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:05,152 INFO L85 PathProgramCache]: Analyzing trace with hash -247109324, now seen corresponding path program 23 times [2021-11-12 23:47:05,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:47:05,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405737537] [2021-11-12 23:47:05,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:05,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:47:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:05,348 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 28 proven. 53 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-12 23:47:05,348 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:47:05,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405737537] [2021-11-12 23:47:05,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405737537] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:47:05,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829900757] [2021-11-12 23:47:05,348 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:47:05,349 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:47:05,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:47:05,350 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:47:05,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-12 23:47:05,455 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-11-12 23:47:05,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:47:05,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 23:47:05,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:05,667 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 36 proven. 45 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-12 23:47:05,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:05,766 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 36 proven. 45 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-12 23:47:05,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829900757] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:47:05,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2055114198] [2021-11-12 23:47:05,768 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:47:05,768 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:47:05,768 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:47:05,769 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:47:05,769 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:47:05,786 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,786 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:05,786 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,787 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:47:05,787 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:05,787 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,787 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:47:05,788 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:47:05,795 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_77|], 21=[|v_#valid_78|]} [2021-11-12 23:47:05,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:47:05,803 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,803 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:47:05,803 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:47:05,804 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:05,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:05,811 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:47:05,833 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,835 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:47:05,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:47:05,836 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:05,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:05,838 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:47:05,841 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:47:05,841 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:47:05,845 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:47:05,846 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:05,846 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:47:05,847 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:05,847 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:47:05,849 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:47:05,851 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_78|], 15=[|v_#valid_79|]} [2021-11-12 23:47:05,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,866 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:47:05,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:47:05,866 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:47:05,868 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:47:05,868 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:05,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:05,871 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:47:05,881 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,882 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:47:05,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,883 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:47:05,883 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:05,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:05,885 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,886 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,887 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:47:05,887 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:47:05,887 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:47:05,889 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,889 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:05,890 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:47:05,891 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:47:05,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:47:05,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,900 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:47:05,900 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,900 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:47:05,900 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:05,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:05,903 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,904 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,905 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:47:05,905 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:47:05,905 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:47:05,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:05,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:05,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:05,955 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,959 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:05,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,961 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:05,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,962 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:47:05,962 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:05,962 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,963 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:47:05,965 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:47:05,966 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:05,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:47:05,971 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:47:05,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:47:05,989 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:47:05,990 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:05,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:47:05,990 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:05,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:05,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:06,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:47:06,001 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:06,002 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:47:06,002 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:06,002 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:47:06,002 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:06,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,018 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:06,024 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:47:06,026 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:47:06,026 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:47:06,027 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:47:06,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,061 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:47:06,061 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:06,062 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:06,062 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:47:06,062 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:47:06,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:47:06,068 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:06,068 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:47:06,068 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:06,068 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:47:06,068 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:06,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,070 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:06,070 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:06,070 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:47:06,071 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:47:06,071 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:47:06,073 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:47:06,074 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:47:06,075 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:06,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-12 23:47:06,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,086 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:06,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-12 23:47:06,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,107 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:47:06,108 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:47:06,112 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:47:06,113 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:47:06,114 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:06,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:47:06,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,131 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:06,133 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:47:06,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,156 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:47:06,157 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:47:06,160 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:47:06,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:47:06,162 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:06,163 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:47:06,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,173 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:06,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:47:06,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,192 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:47:06,194 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:47:06,197 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:47:06,198 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:47:06,200 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:06,201 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:47:06,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,215 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:06,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:47:06,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:06,232 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:47:06,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:47:06,236 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:47:06,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:47:06,669 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:47:06,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 32 [2021-11-12 23:47:06,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38556856] [2021-11-12 23:47:06,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:47:06,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-12 23:47:06,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:47:06,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-12 23:47:06,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=1067, Unknown=0, NotChecked=0, Total=1332 [2021-11-12 23:47:06,671 INFO L87 Difference]: Start difference. First operand 72 states and 78 transitions. Second operand has 32 states, 32 states have (on average 1.96875) internal successors, (63), 32 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:06,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:06,988 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2021-11-12 23:47:06,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-12 23:47:06,988 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.96875) internal successors, (63), 32 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-12 23:47:06,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:06,989 INFO L225 Difference]: With dead ends: 76 [2021-11-12 23:47:06,989 INFO L226 Difference]: Without dead ends: 55 [2021-11-12 23:47:06,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 136 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=438, Invalid=1818, Unknown=0, NotChecked=0, Total=2256 [2021-11-12 23:47:06,989 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 12 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 162.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.99ms SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 196.46ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:06,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 15 Invalid, 606 Unknown, 0 Unchecked, 0.99ms Time], IncrementalHoareTripleChecker [190 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 196.46ms Time] [2021-11-12 23:47:06,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-12 23:47:07,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-11-12 23:47:07,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.0925925925925926) internal successors, (59), 54 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:07,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2021-11-12 23:47:07,007 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 51 [2021-11-12 23:47:07,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:07,008 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2021-11-12 23:47:07,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.96875) internal successors, (63), 32 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:07,008 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2021-11-12 23:47:07,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-12 23:47:07,009 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:07,009 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:07,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:07,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1278 [2021-11-12 23:47:07,233 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:07,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:07,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1248847450, now seen corresponding path program 24 times [2021-11-12 23:47:07,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:47:07,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999312062] [2021-11-12 23:47:07,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:07,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:47:07,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:12,208 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 21 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:47:12,208 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:47:12,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999312062] [2021-11-12 23:47:12,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999312062] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:47:12,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750275496] [2021-11-12 23:47:12,209 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:47:12,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:47:12,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:47:12,210 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:47:12,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-12 23:47:12,271 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:47:12,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:47:12,275 WARN L261 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 169 conjunts are in the unsatisfiable core [2021-11-12 23:47:12,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:15,235 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:47:15,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:20,204 INFO L354 Elim1Store]: treesize reduction 1362, result has 39.3 percent of original size [2021-11-12 23:47:20,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 155 treesize of output 906 [2021-11-12 23:47:34,518 INFO L354 Elim1Store]: treesize reduction 2208, result has 1.6 percent of original size [2021-11-12 23:47:34,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 154 treesize of output 59 [2021-11-12 23:47:34,640 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-12 23:47:34,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750275496] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:47:34,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1841003191] [2021-11-12 23:47:34,641 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:47:34,642 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:47:34,642 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:47:34,642 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:47:34,642 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:47:34,644 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,644 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:34,645 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:47:34,645 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:34,645 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,646 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:47:34,646 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:47:34,648 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_80|], 21=[|v_#valid_81|]} [2021-11-12 23:47:34,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:47:34,656 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,656 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:47:34,656 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,657 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:47:34,657 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:34,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,658 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:47:34,670 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,671 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:47:34,671 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:47:34,672 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:34,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,673 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,674 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:47:34,675 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:47:34,675 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:47:34,677 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:47:34,678 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:34,678 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:47:34,679 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:34,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:47:34,680 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:47:34,681 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_81|], 15=[|v_#valid_82|]} [2021-11-12 23:47:34,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,695 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:47:34,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:47:34,696 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:47:34,697 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,697 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:47:34,697 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:34,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,700 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:47:34,710 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,711 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:47:34,711 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,712 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:47:34,712 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:34,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,714 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,716 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:47:34,716 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:47:34,716 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:47:34,717 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,718 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:34,718 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,719 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:47:34,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:47:34,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:47:34,728 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:47:34,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:47:34,729 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:34,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,732 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,733 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,734 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:47:34,734 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:47:34,734 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:47:34,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,760 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,764 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:34,766 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,766 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:34,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:47:34,767 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:34,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,768 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:47:34,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:47:34,770 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:34,771 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,773 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:47:34,775 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:47:34,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:47:34,790 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:47:34,791 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:47:34,791 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:34,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:34,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:47:34,805 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,806 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:47:34,807 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,807 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:47:34,807 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:34,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,822 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,828 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:47:34,830 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:47:34,830 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:47:34,830 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:47:34,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,864 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:47:34,865 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:34,865 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,865 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:47:34,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:47:34,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:47:34,870 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:47:34,871 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:47:34,871 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:34,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,872 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,872 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,873 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:47:34,873 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:47:34,873 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:47:34,876 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:47:34,877 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:47:34,878 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,878 INFO L185 QuantifierPusher]: treesize reduction 3, result has 94.3 percent of original size 50 [2021-11-12 23:47:34,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,894 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:47:34,896 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-12 23:47:34,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,910 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:47:34,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:47:34,914 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:47:34,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:47:34,916 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,917 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:47:34,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,927 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:47:34,929 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:47:34,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,943 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:47:34,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:47:34,946 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:47:34,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:47:34,948 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:47:34,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,958 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:47:34,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,974 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:47:34,975 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:47:34,978 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:47:34,979 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:47:34,980 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:34,980 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:47:34,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:34,991 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:47:34,992 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:47:34,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:35,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:35,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:35,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:35,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:35,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:35,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:35,030 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:47:35,031 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:47:35,034 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:47:35,977 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:47:35,977 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:47:35,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 31, 24] total 99 [2021-11-12 23:47:35,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418440165] [2021-11-12 23:47:35,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:47:35,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2021-11-12 23:47:35,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:47:35,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2021-11-12 23:47:35,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=534, Invalid=10178, Unknown=0, NotChecked=0, Total=10712 [2021-11-12 23:47:35,979 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand has 99 states, 99 states have (on average 1.4747474747474747) internal successors, (146), 99 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:46,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:46,350 INFO L93 Difference]: Finished difference Result 95 states and 104 transitions. [2021-11-12 23:47:46,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-12 23:47:46,351 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 99 states have (on average 1.4747474747474747) internal successors, (146), 99 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-12 23:47:46,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:46,352 INFO L225 Difference]: With dead ends: 95 [2021-11-12 23:47:46,352 INFO L226 Difference]: Without dead ends: 92 [2021-11-12 23:47:46,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 98 SyntacticMatches, 13 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7468 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=1361, Invalid=22201, Unknown=0, NotChecked=0, Total=23562 [2021-11-12 23:47:46,354 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 16 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 2901 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2138.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 3082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.42ms SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 2901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2443.63ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:46,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 211 Invalid, 3082 Unknown, 0 Unchecked, 5.42ms Time], IncrementalHoareTripleChecker [181 Valid, 2901 Invalid, 0 Unknown, 0 Unchecked, 2443.63ms Time] [2021-11-12 23:47:46,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-12 23:47:46,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 77. [2021-11-12 23:47:46,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.105263157894737) internal successors, (84), 76 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:46,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 84 transitions. [2021-11-12 23:47:46,376 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 84 transitions. Word has length 54 [2021-11-12 23:47:46,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:46,377 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 84 transitions. [2021-11-12 23:47:46,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 99 states have (on average 1.4747474747474747) internal successors, (146), 99 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:46,377 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 84 transitions. [2021-11-12 23:47:46,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-12 23:47:46,377 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:46,377 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:46,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:46,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1336,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:47:46,578 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:46,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:46,578 INFO L85 PathProgramCache]: Analyzing trace with hash 2141033884, now seen corresponding path program 25 times [2021-11-12 23:47:46,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:47:46,578 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860464045] [2021-11-12 23:47:46,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:46,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:47:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:46,783 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 46 proven. 54 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-12 23:47:46,783 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:47:46,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860464045] [2021-11-12 23:47:46,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860464045] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:47:46,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584659212] [2021-11-12 23:47:46,784 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:47:46,784 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:47:46,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:47:46,785 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:47:46,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-12 23:47:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:46,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-12 23:47:46,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:47,200 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 55 proven. 45 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-12 23:47:47,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:47,324 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 55 proven. 45 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-12 23:47:47,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584659212] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:47:47,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1119459911] [2021-11-12 23:47:47,326 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:47:47,326 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:47:47,326 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:47:47,326 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:47:47,327 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:47:47,329 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,330 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:47,330 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,331 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:47:47,331 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:47,331 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,332 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:47:47,333 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:47:47,334 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_83|], 21=[|v_#valid_84|]} [2021-11-12 23:47:47,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:47:47,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,344 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:47:47,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:47:47,345 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:47,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,347 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:47:47,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,365 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:47:47,365 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,366 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:47:47,366 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:47,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,368 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,369 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,370 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:47:47,371 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:47:47,371 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:47:47,374 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:47:47,375 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:47,376 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:47:47,376 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:47,377 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,377 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:47:47,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:47:47,380 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_84|], 15=[|v_#valid_85|]} [2021-11-12 23:47:47,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,395 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:47:47,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:47:47,395 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,396 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:47:47,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:47:47,397 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:47,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,401 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:47:47,414 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,415 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:47:47,416 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:47:47,416 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:47,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,420 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,421 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,423 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:47:47,423 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:47:47,424 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:47:47,426 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,427 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:47,427 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,428 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:47:47,430 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:47:47,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:47:47,440 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,441 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:47:47,441 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,442 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:47:47,442 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:47,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,446 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,448 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:47:47,450 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:47:47,450 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:47:47,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,480 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:47,482 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,482 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:47,483 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:47:47,483 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:47,484 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,484 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:47:47,486 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:47:47,486 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:47,487 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,489 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:47:47,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:47:47,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:47:47,510 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:47:47,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:47:47,511 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:47,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:47,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:47:47,522 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,523 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:47:47,523 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:47:47,524 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:47,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,539 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,545 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:47:47,547 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:47:47,547 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:47:47,547 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:47:47,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,573 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:47:47,573 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:47,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,574 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:47:47,574 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:47:47,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:47:47,579 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,579 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:47:47,579 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,579 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:47:47,579 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:47,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,581 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,581 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,581 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:47:47,582 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:47:47,582 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:47:47,584 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:47:47,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:47:47,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,587 INFO L185 QuantifierPusher]: treesize reduction 7, result has 87.7 percent of original size 50 [2021-11-12 23:47:47,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,598 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:47:47,599 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-12 23:47:47,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,614 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:47:47,614 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:47:47,617 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:47:47,618 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:47:47,623 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,632 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:47:47,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,648 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:47:47,651 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:47:47,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,674 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:47:47,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:47:47,678 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:47:47,680 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:47:47,681 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,682 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:47:47,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,699 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:47:47,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:47:47,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,723 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:47:47,724 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:47:47,728 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:47:47,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:47:47,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:47:47,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,746 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:47,749 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:47:47,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:47,774 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:47:47,775 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:47:47,780 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:47:48,319 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:47:48,320 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:47:48,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 34 [2021-11-12 23:47:48,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865913551] [2021-11-12 23:47:48,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:47:48,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-12 23:47:48,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:47:48,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-12 23:47:48,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=1170, Unknown=0, NotChecked=0, Total=1482 [2021-11-12 23:47:48,321 INFO L87 Difference]: Start difference. First operand 77 states and 84 transitions. Second operand has 34 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:48,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:48,675 INFO L93 Difference]: Finished difference Result 160 states and 175 transitions. [2021-11-12 23:47:48,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-12 23:47:48,675 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-12 23:47:48,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:48,676 INFO L225 Difference]: With dead ends: 160 [2021-11-12 23:47:48,676 INFO L226 Difference]: Without dead ends: 86 [2021-11-12 23:47:48,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=497, Invalid=1855, Unknown=0, NotChecked=0, Total=2352 [2021-11-12 23:47:48,677 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 26 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 182.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.28ms SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 223.44ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:48,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 15 Invalid, 658 Unknown, 0 Unchecked, 1.28ms Time], IncrementalHoareTripleChecker [367 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 223.44ms Time] [2021-11-12 23:47:48,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-12 23:47:48,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 79. [2021-11-12 23:47:48,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.0897435897435896) internal successors, (85), 78 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:48,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 85 transitions. [2021-11-12 23:47:48,699 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 85 transitions. Word has length 55 [2021-11-12 23:47:48,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:48,700 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 85 transitions. [2021-11-12 23:47:48,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:48,700 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2021-11-12 23:47:48,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-12 23:47:48,700 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:48,700 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:48,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:48,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1394,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:47:48,901 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:48,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:48,901 INFO L85 PathProgramCache]: Analyzing trace with hash -394686267, now seen corresponding path program 26 times [2021-11-12 23:47:48,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:47:48,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718491268] [2021-11-12 23:47:48,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:48,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:47:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:49,130 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 36 proven. 64 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-11-12 23:47:49,131 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:47:49,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718491268] [2021-11-12 23:47:49,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718491268] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:47:49,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090696867] [2021-11-12 23:47:49,131 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:47:49,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:47:49,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:47:49,136 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:47:49,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-12 23:47:49,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-11-12 23:47:49,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:47:49,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-12 23:47:49,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:49,632 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 45 proven. 55 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-11-12 23:47:49,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:49,744 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 45 proven. 55 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-11-12 23:47:49,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090696867] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:47:49,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [859889905] [2021-11-12 23:47:49,746 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:47:49,746 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:47:49,746 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:47:49,746 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:47:49,746 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:47:49,749 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,749 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:49,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,755 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:47:49,755 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:49,755 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:47:49,757 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:47:49,758 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_85|], 21=[|v_#valid_86|]} [2021-11-12 23:47:49,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:47:49,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,768 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:47:49,769 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:47:49,769 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:49,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:49,772 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:47:49,787 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,789 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:47:49,789 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,790 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:47:49,790 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:49,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:49,793 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,794 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,795 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:47:49,795 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:47:49,795 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:47:49,799 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:47:49,800 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:49,800 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,800 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:47:49,801 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:49,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:47:49,803 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:47:49,805 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_86|], 15=[|v_#valid_87|]} [2021-11-12 23:47:49,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,819 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:47:49,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:47:49,820 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:47:49,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:47:49,822 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:49,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:49,826 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:47:49,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:47:49,842 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:47:49,842 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:49,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:49,846 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,848 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,849 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:47:49,850 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:47:49,850 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:47:49,852 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,853 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:49,854 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,854 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:47:49,855 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:47:49,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:47:49,866 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:47:49,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:47:49,868 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:49,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:49,870 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,871 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,872 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:47:49,872 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:47:49,873 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:47:49,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:49,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:49,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:49,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,903 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:49,905 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,906 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:49,906 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,906 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:47:49,907 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:49,907 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,907 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:47:49,909 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:47:49,909 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:49,911 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:47:49,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:47:49,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:47:49,933 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,934 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:47:49,934 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:47:49,935 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:49,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:47:49,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:47:49,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:47:49,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:47:49,947 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:49,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:49,963 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,968 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:47:49,970 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:47:49,971 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:47:49,971 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:47:49,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:49,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:49,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:49,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:49,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:49,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:49,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:49,997 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:47:49,997 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:47:49,998 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:49,998 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:47:49,998 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:47:50,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:47:50,003 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:50,003 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:47:50,004 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:50,004 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:47:50,004 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:47:50,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,005 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:50,006 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:50,006 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:47:50,006 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:47:50,006 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:47:50,009 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:47:50,010 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:47:50,011 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:50,012 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-12 23:47:50,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,022 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:50,024 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-12 23:47:50,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,039 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:47:50,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:47:50,042 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:47:50,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:47:50,046 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:50,047 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:47:50,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,062 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:50,065 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:47:50,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,087 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:47:50,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:47:50,093 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:47:50,094 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:47:50,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:50,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:47:50,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,106 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:50,108 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:47:50,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,122 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:47:50,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:47:50,126 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:47:50,126 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:47:50,127 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:50,128 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:47:50,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,139 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:47:50,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:47:50,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:47:50,156 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:47:50,156 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:47:50,160 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:47:50,616 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:47:50,617 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:47:50,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 35 [2021-11-12 23:47:50,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96213669] [2021-11-12 23:47:50,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:47:50,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-12 23:47:50,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:47:50,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-12 23:47:50,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=311, Invalid=1249, Unknown=0, NotChecked=0, Total=1560 [2021-11-12 23:47:50,618 INFO L87 Difference]: Start difference. First operand 79 states and 85 transitions. Second operand has 35 states, 35 states have (on average 2.0) internal successors, (70), 35 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:50,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:50,942 INFO L93 Difference]: Finished difference Result 83 states and 89 transitions. [2021-11-12 23:47:50,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:47:50,942 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.0) internal successors, (70), 35 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-12 23:47:50,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:50,943 INFO L225 Difference]: With dead ends: 83 [2021-11-12 23:47:50,943 INFO L226 Difference]: Without dead ends: 60 [2021-11-12 23:47:50,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 150 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 894 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=517, Invalid=2135, Unknown=0, NotChecked=0, Total=2652 [2021-11-12 23:47:50,943 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 15 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 149.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.97ms SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 181.45ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:50,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 9 Invalid, 562 Unknown, 0 Unchecked, 0.97ms Time], IncrementalHoareTripleChecker [247 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 181.45ms Time] [2021-11-12 23:47:50,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-12 23:47:50,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-11-12 23:47:50,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.0847457627118644) internal successors, (64), 59 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:50,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2021-11-12 23:47:50,957 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 56 [2021-11-12 23:47:50,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:50,957 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2021-11-12 23:47:50,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.0) internal successors, (70), 35 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:47:50,958 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2021-11-12 23:47:50,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-12 23:47:50,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:50,958 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:50,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:51,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1452 [2021-11-12 23:47:51,179 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:51,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:51,180 INFO L85 PathProgramCache]: Analyzing trace with hash 2064065641, now seen corresponding path program 27 times [2021-11-12 23:47:51,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:47:51,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498539378] [2021-11-12 23:47:51,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:51,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:47:51,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:57,920 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 21 proven. 254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:47:57,920 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:47:57,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498539378] [2021-11-12 23:47:57,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498539378] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:47:57,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001992381] [2021-11-12 23:47:57,920 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:47:57,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:47:57,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:47:57,921 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:47:57,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-12 23:47:58,008 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:47:58,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:47:58,012 WARN L261 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 187 conjunts are in the unsatisfiable core [2021-11-12 23:47:58,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:48:02,381 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 274 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:48:02,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:48:09,603 INFO L354 Elim1Store]: treesize reduction 1703, result has 39.0 percent of original size [2021-11-12 23:48:09,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 0 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 171 treesize of output 1115 [2021-11-12 23:48:51,652 INFO L354 Elim1Store]: treesize reduction 2753, result has 1.5 percent of original size [2021-11-12 23:48:51,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 0 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 172 treesize of output 66 [2021-11-12 23:48:51,800 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-12 23:48:51,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001992381] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:48:51,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1019642125] [2021-11-12 23:48:51,802 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:48:51,802 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:48:51,802 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:48:51,802 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:48:51,802 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:48:51,805 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,805 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:48:51,805 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,805 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:48:51,806 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:48:51,806 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,806 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:48:51,807 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:48:51,808 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_88|], 21=[|v_#valid_89|]} [2021-11-12 23:48:51,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:48:51,815 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,816 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:48:51,816 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,816 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:48:51,816 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:48:51,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:51,818 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:48:51,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:48:51,842 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:48:51,842 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:48:51,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:51,844 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,844 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,845 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:48:51,845 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:48:51,845 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:48:51,848 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:48:51,848 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:48:51,849 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,849 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:48:51,849 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:48:51,849 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:48:51,851 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:48:51,852 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_89|], 15=[|v_#valid_90|]} [2021-11-12 23:48:51,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,864 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:48:51,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:48:51,864 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,865 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:48:51,866 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:48:51,866 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:48:51,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:51,869 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:48:51,879 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,887 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:48:51,887 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,887 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:48:51,887 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:48:51,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:51,890 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,891 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,892 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:48:51,892 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:48:51,892 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:48:51,893 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,894 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:48:51,895 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,895 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 23:48:51,896 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size 144 [2021-11-12 23:48:51,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-12 23:48:51,904 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,905 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:48:51,905 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,905 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:48:51,905 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:48:51,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:51,908 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,909 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size [2021-11-12 23:48:51,910 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-12 23:48:51,911 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:48:51,911 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:145, output treesize:138 [2021-11-12 23:48:51,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:51,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:51,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:51,936 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,940 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:48:51,942 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,942 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:48:51,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,943 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-12 23:48:51,943 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:48:51,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:48:51,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-11-12 23:48:51,946 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:48:51,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-11-12 23:48:51,951 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 367 [2021-11-12 23:48:51,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 45 [2021-11-12 23:48:51,972 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,973 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-12 23:48:51,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,974 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-12 23:48:51,974 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:48:51,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:48:51,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:48:51,985 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:48:51,986 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:51,987 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:48:51,987 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:48:51,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,002 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:52,008 INFO L180 QuantifierPusher]: treesize reduction 124, result has 72.2 percent of original size [2021-11-12 23:48:52,009 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-11-12 23:48:52,010 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:48:52,010 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:454, output treesize:322 [2021-11-12 23:48:52,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,036 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:48:52,037 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:48:52,037 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:52,038 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:48:52,038 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:48:52,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:48:52,043 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:52,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:48:52,043 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:52,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:48:52,043 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:48:52,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,045 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:52,045 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:52,046 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:48:52,046 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:48:52,046 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:48:52,049 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:48:52,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:48:52,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:52,051 INFO L185 QuantifierPusher]: treesize reduction 7, result has 87.7 percent of original size 50 [2021-11-12 23:48:52,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,063 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:48:52,064 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-12 23:48:52,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,080 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:48:52,081 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:48:52,084 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:48:52,085 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:48:52,086 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:52,087 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:48:52,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,097 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:48:52,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:48:52,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,114 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:48:52,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:48:52,117 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:48:52,118 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:48:52,119 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:52,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:48:52,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,130 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:52,131 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:48:52,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,146 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:48:52,147 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:48:52,149 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:48:52,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:48:52,151 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:48:52,152 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:48:52,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,163 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:48:52,164 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:48:52,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:48:52,180 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:48:52,181 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:48:52,184 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:48:53,268 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:48:53,268 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:48:53,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 34, 26] total 109 [2021-11-12 23:48:53,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530586286] [2021-11-12 23:48:53,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:48:53,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 109 states [2021-11-12 23:48:53,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:48:53,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2021-11-12 23:48:53,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=529, Invalid=12353, Unknown=0, NotChecked=0, Total=12882 [2021-11-12 23:48:53,271 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand has 109 states, 109 states have (on average 1.4678899082568808) internal successors, (160), 109 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:49:06,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:49:06,757 INFO L93 Difference]: Finished difference Result 103 states and 112 transitions. [2021-11-12 23:49:06,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-11-12 23:49:06,758 INFO L78 Accepts]: Start accepts. Automaton has has 109 states, 109 states have (on average 1.4678899082568808) internal successors, (160), 109 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-12 23:49:06,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:49:06,758 INFO L225 Difference]: With dead ends: 103 [2021-11-12 23:49:06,758 INFO L226 Difference]: Without dead ends: 100 [2021-11-12 23:49:06,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 107 SyntacticMatches, 14 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7813 ImplicationChecksByTransitivity, 22.6s TimeCoverageRelationStatistics Valid=1519, Invalid=27211, Unknown=0, NotChecked=0, Total=28730 [2021-11-12 23:49:06,760 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 15 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 3062 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2364.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 3328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.38ms SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 3062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2693.17ms IncrementalHoareTripleChecker+Time [2021-11-12 23:49:06,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 200 Invalid, 3328 Unknown, 0 Unchecked, 14.38ms Time], IncrementalHoareTripleChecker [266 Valid, 3062 Invalid, 0 Unknown, 0 Unchecked, 2693.17ms Time] [2021-11-12 23:49:06,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-11-12 23:49:06,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 84. [2021-11-12 23:49:06,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 83 states have (on average 1.0963855421686748) internal successors, (91), 83 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:49:06,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2021-11-12 23:49:06,783 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 59 [2021-11-12 23:49:06,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:49:06,784 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2021-11-12 23:49:06,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 109 states, 109 states have (on average 1.4678899082568808) internal successors, (160), 109 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:49:06,784 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2021-11-12 23:49:06,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-12 23:49:06,784 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:49:06,784 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:49:06,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-11-12 23:49:06,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1510 [2021-11-12 23:49:06,985 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:49:06,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:49:06,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1231103715, now seen corresponding path program 28 times [2021-11-12 23:49:06,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:49:06,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926407206] [2021-11-12 23:49:06,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:49:06,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:49:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:49:07,222 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 56 proven. 65 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-12 23:49:07,222 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:49:07,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926407206] [2021-11-12 23:49:07,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926407206] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:49:07,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111583726] [2021-11-12 23:49:07,223 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:49:07,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:49:07,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:49:07,224 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:49:07,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-12 23:49:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:49:07,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-12 23:49:07,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:49:07,704 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 66 proven. 55 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-12 23:49:07,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:49:07,852 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 66 proven. 55 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-12 23:49:07,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111583726] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:49:07,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1661923441] [2021-11-12 23:49:07,854 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:49:07,854 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:49:07,854 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:49:07,854 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:49:07,855 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:49:07,859 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,860 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:49:07,860 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,860 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:49:07,861 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:49:07,861 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:49:07,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:49:07,864 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_91|], 21=[|v_#valid_92|]} [2021-11-12 23:49:07,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:49:07,874 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,874 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:49:07,875 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,875 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:49:07,875 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:49:07,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:07,878 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:49:07,895 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,896 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:49:07,897 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,897 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:49:07,897 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:49:07,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:07,899 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,900 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:49:07,900 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:49:07,900 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:49:07,903 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:49:07,903 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:49:07,903 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,904 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:49:07,904 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:49:07,904 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,905 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:49:07,906 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:49:07,907 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_92|], 15=[|v_#valid_93|]} [2021-11-12 23:49:07,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,919 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:49:07,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:49:07,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:49:07,921 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:49:07,921 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:49:07,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:07,924 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:49:07,935 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:49:07,937 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:49:07,937 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:49:07,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:07,940 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,941 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,942 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:49:07,942 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:49:07,943 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:49:07,945 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,946 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:49:07,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:49:07,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:49:07,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:07,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:49:07,956 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:49:07,957 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:49:07,958 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:49:07,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:07,960 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,962 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:49:07,963 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:49:07,963 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:49:07,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:07,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:07,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:07,990 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,994 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:49:07,996 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,997 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:49:07,997 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,997 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:49:07,998 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:49:07,998 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:07,998 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:49:08,000 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:49:08,000 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:49:08,002 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:08,003 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:49:08,005 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:49:08,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:08,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:08,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:08,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:49:08,024 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:08,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:49:08,025 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:08,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:49:08,025 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:49:08,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:08,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:08,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:49:08,037 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:08,037 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:49:08,038 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:08,038 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:49:08,038 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:49:08,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,054 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:08,059 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:49:08,061 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:49:08,062 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:49:08,062 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:49:08,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,088 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:49:08,088 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:49:08,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:08,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:49:08,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:49:08,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:49:08,094 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:08,094 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:49:08,094 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:08,095 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:49:08,095 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:49:08,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,096 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:08,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:08,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:49:08,097 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:49:08,097 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:49:08,100 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:49:08,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:49:08,117 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:08,119 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-12 23:49:08,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,135 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:08,138 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-12 23:49:08,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,161 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:49:08,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:49:08,166 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:49:08,167 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:49:08,169 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:08,170 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:49:08,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,186 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:08,188 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:49:08,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,211 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:49:08,212 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:49:08,216 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:49:08,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:49:08,218 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:08,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:49:08,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,235 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:08,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:49:08,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,261 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:49:08,262 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:49:08,266 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:49:08,268 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:49:08,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:08,270 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:49:08,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,286 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:49:08,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:49:08,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:08,312 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:49:08,313 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:49:08,317 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:49:08,897 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:49:08,897 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:49:08,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 37 [2021-11-12 23:49:08,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548674782] [2021-11-12 23:49:08,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:49:08,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-12 23:49:08,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:49:08,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-12 23:49:08,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=1359, Unknown=0, NotChecked=0, Total=1722 [2021-11-12 23:49:08,899 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand has 37 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 37 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:49:09,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:49:09,292 INFO L93 Difference]: Finished difference Result 174 states and 189 transitions. [2021-11-12 23:49:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-12 23:49:09,292 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 37 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-12 23:49:09,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:49:09,293 INFO L225 Difference]: With dead ends: 174 [2021-11-12 23:49:09,293 INFO L226 Difference]: Without dead ends: 93 [2021-11-12 23:49:09,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=583, Invalid=2173, Unknown=0, NotChecked=0, Total=2756 [2021-11-12 23:49:09,294 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 31 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 194.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.23ms SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 240.33ms IncrementalHoareTripleChecker+Time [2021-11-12 23:49:09,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 21 Invalid, 652 Unknown, 0 Unchecked, 1.23ms Time], IncrementalHoareTripleChecker [289 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 240.33ms Time] [2021-11-12 23:49:09,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-12 23:49:09,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 86. [2021-11-12 23:49:09,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 1.0823529411764705) internal successors, (92), 85 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:49:09,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 92 transitions. [2021-11-12 23:49:09,321 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 92 transitions. Word has length 60 [2021-11-12 23:49:09,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:49:09,322 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 92 transitions. [2021-11-12 23:49:09,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 37 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:49:09,322 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 92 transitions. [2021-11-12 23:49:09,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-12 23:49:09,323 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:49:09,323 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:49:09,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-11-12 23:49:09,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1568 [2021-11-12 23:49:09,525 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:49:09,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:49:09,525 INFO L85 PathProgramCache]: Analyzing trace with hash 889089940, now seen corresponding path program 29 times [2021-11-12 23:49:09,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:49:09,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801566663] [2021-11-12 23:49:09,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:49:09,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:49:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:49:09,757 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 45 proven. 76 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-11-12 23:49:09,757 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:49:09,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801566663] [2021-11-12 23:49:09,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801566663] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:49:09,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054791085] [2021-11-12 23:49:09,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:49:09,757 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:49:09,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:49:09,758 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:49:09,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-11-12 23:49:09,892 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-11-12 23:49:09,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:49:09,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-12 23:49:09,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:49:10,190 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 55 proven. 66 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-11-12 23:49:10,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:49:10,315 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 55 proven. 66 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-11-12 23:49:10,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054791085] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:49:10,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [835384910] [2021-11-12 23:49:10,317 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:49:10,317 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:49:10,317 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:49:10,318 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:49:10,318 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:49:10,320 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,320 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:49:10,320 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:49:10,321 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:49:10,321 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:49:10,322 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:49:10,323 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_93|], 21=[|v_#valid_94|]} [2021-11-12 23:49:10,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:49:10,330 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,330 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:49:10,331 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,331 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:49:10,331 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:49:10,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,333 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:49:10,343 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:49:10,345 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:49:10,345 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:49:10,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,347 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,348 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,348 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:49:10,349 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:49:10,349 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:49:10,351 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:49:10,352 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:49:10,352 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,352 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:49:10,353 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:49:10,353 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:49:10,354 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:49:10,355 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_94|], 15=[|v_#valid_95|]} [2021-11-12 23:49:10,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,367 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:49:10,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:49:10,368 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,369 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:49:10,369 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,369 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:49:10,369 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:49:10,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,372 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:49:10,382 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,383 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:49:10,384 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,384 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:49:10,384 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:49:10,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,387 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,388 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:49:10,389 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:49:10,389 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:49:10,390 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,391 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:49:10,391 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,392 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:49:10,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:49:10,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:49:10,401 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,401 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:49:10,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,402 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:49:10,402 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:49:10,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,405 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,406 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,407 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:49:10,407 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:49:10,407 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:49:10,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,434 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,437 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:49:10,439 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,440 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:49:10,440 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,440 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:49:10,441 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:49:10,441 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,441 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:49:10,443 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:49:10,443 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:49:10,445 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,446 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:49:10,448 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:49:10,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:49:10,463 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,464 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:49:10,464 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,465 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:49:10,465 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:49:10,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:49:10,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:49:10,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:49:10,478 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,479 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:49:10,479 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:49:10,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,494 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,500 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:49:10,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:49:10,502 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:49:10,502 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:49:10,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,529 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:49:10,529 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:49:10,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:49:10,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:49:10,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:49:10,534 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,535 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:49:10,535 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,535 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:49:10,535 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:49:10,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,536 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,537 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:49:10,537 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:49:10,538 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:49:10,540 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:49:10,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:49:10,563 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,565 INFO L185 QuantifierPusher]: treesize reduction 7, result has 87.7 percent of original size 50 [2021-11-12 23:49:10,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,577 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:49:10,579 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-12 23:49:10,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,593 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:49:10,594 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:49:10,599 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:49:10,600 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:49:10,600 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,601 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:49:10,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,611 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:49:10,613 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:49:10,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,627 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:49:10,628 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:49:10,631 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:49:10,632 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:49:10,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,633 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:49:10,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,644 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:49:10,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:49:10,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,659 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:49:10,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:49:10,663 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:49:10,664 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:49:10,664 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:49:10,665 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:49:10,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,683 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:49:10,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:49:10,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:49:10,699 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:49:10,700 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:49:10,703 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:49:11,196 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:49:11,196 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:49:11,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 38 [2021-11-12 23:49:11,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684705212] [2021-11-12 23:49:11,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:49:11,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-11-12 23:49:11,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:49:11,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-11-12 23:49:11,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=361, Invalid=1445, Unknown=0, NotChecked=0, Total=1806 [2021-11-12 23:49:11,198 INFO L87 Difference]: Start difference. First operand 86 states and 92 transitions. Second operand has 38 states, 38 states have (on average 1.9736842105263157) internal successors, (75), 38 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:49:11,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:49:11,600 INFO L93 Difference]: Finished difference Result 90 states and 96 transitions. [2021-11-12 23:49:11,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-12 23:49:11,600 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 1.9736842105263157) internal successors, (75), 38 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-12 23:49:11,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:49:11,601 INFO L225 Difference]: With dead ends: 90 [2021-11-12 23:49:11,601 INFO L226 Difference]: Without dead ends: 65 [2021-11-12 23:49:11,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 164 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1044 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=603, Invalid=2477, Unknown=0, NotChecked=0, Total=3080 [2021-11-12 23:49:11,602 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 12 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 197.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.17ms SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 245.45ms IncrementalHoareTripleChecker+Time [2021-11-12 23:49:11,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 15 Invalid, 728 Unknown, 0 Unchecked, 1.17ms Time], IncrementalHoareTripleChecker [209 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 245.45ms Time] [2021-11-12 23:49:11,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-12 23:49:11,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-11-12 23:49:11,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.078125) internal successors, (69), 64 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:49:11,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2021-11-12 23:49:11,628 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 61 [2021-11-12 23:49:11,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:49:11,628 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2021-11-12 23:49:11,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 1.9736842105263157) internal successors, (75), 38 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:49:11,628 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2021-11-12 23:49:11,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-12 23:49:11,628 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:49:11,629 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:49:11,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2021-11-12 23:49:11,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1626,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:49:11,832 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:49:11,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:49:11,832 INFO L85 PathProgramCache]: Analyzing trace with hash 824688762, now seen corresponding path program 30 times [2021-11-12 23:49:11,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:49:11,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779240835] [2021-11-12 23:49:11,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:49:11,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:49:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:49:19,598 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 12 proven. 318 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:49:19,599 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:49:19,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779240835] [2021-11-12 23:49:19,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779240835] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:49:19,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861565696] [2021-11-12 23:49:19,599 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:49:19,599 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:49:19,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:49:19,600 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:49:19,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-11-12 23:49:19,685 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:49:19,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:49:19,689 WARN L261 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 205 conjunts are in the unsatisfiable core [2021-11-12 23:49:19,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:49:24,079 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 329 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:49:24,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:49:33,817 WARN L227 SmtUtils]: Spent 5.46s on a formula simplification. DAG size of input: 981 DAG size of output: 541 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-12 23:49:33,822 INFO L354 Elim1Store]: treesize reduction 2082, result has 38.8 percent of original size [2021-11-12 23:49:33,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 22 select indices, 22 select index equivalence classes, 0 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 231 case distinctions, treesize of input 188 treesize of output 1347 [2021-11-12 23:50:15,016 INFO L354 Elim1Store]: treesize reduction 3358, result has 1.3 percent of original size [2021-11-12 23:50:15,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 22 select indices, 22 select index equivalence classes, 0 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 231 case distinctions, treesize of input 189 treesize of output 72 [2021-11-12 23:50:15,171 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 264 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-11-12 23:50:15,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861565696] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:50:15,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1407689026] [2021-11-12 23:50:15,172 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:50:15,173 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:50:15,173 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:50:15,173 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:50:15,173 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:50:15,177 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,177 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:15,177 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:50:15,178 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:15,178 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:50:15,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:50:15,180 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_96|], 21=[|v_#valid_97|]} [2021-11-12 23:50:15,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:50:15,187 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,187 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:50:15,188 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,188 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:50:15,188 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:15,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,190 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:50:15,201 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:50:15,231 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,232 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:50:15,232 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:15,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,236 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,236 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,237 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:50:15,237 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:50:15,237 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:50:15,240 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:50:15,240 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:15,240 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,241 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:50:15,241 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:15,241 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,242 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:50:15,242 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:50:15,244 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_97|], 15=[|v_#valid_98|]} [2021-11-12 23:50:15,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,255 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:50:15,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:50:15,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:50:15,257 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,262 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:50:15,262 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:15,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,265 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:50:15,284 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,286 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:50:15,286 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,286 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:50:15,286 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:15,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,289 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,290 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,291 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:50:15,291 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:50:15,291 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:50:15,292 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,293 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:15,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,294 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:50:15,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:50:15,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:50:15,304 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,304 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:50:15,305 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,305 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:50:15,305 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:15,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,308 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:50:15,310 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:50:15,310 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:50:15,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,339 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,343 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:15,345 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,345 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:15,345 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,346 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:50:15,346 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:15,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,347 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:50:15,349 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:50:15,349 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:15,350 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,352 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:50:15,354 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:50:15,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:50:15,372 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:50:15,373 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:50:15,374 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:15,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:15,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:50:15,384 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,385 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:50:15,385 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,396 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:50:15,396 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:15,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,411 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,417 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:50:15,419 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:50:15,419 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:50:15,420 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:50:15,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,458 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:50:15,459 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:15,459 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,459 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:50:15,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:50:15,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:50:15,466 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:50:15,466 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,467 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:50:15,467 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:15,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,469 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,469 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:50:15,470 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:50:15,471 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:50:15,474 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:50:15,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:50:15,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,478 INFO L185 QuantifierPusher]: treesize reduction 7, result has 87.7 percent of original size 50 [2021-11-12 23:50:15,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,498 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:50:15,501 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-12 23:50:15,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,522 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:50:15,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:50:15,528 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:50:15,529 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:50:15,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,531 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:50:15,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,548 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,550 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:50:15,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,575 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:50:15,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:50:15,580 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:50:15,584 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:50:15,585 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,586 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:50:15,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,604 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:50:15,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:50:15,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,628 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:50:15,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:50:15,633 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:50:15,634 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:50:15,636 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,637 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:50:15,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,652 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:15,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:50:15,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:15,677 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:50:15,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:50:15,683 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:50:16,797 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:50:16,798 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:50:16,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 37, 28] total 119 [2021-11-12 23:50:16,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751688763] [2021-11-12 23:50:16,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:50:16,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2021-11-12 23:50:16,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:50:16,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2021-11-12 23:50:16,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=587, Invalid=14665, Unknown=0, NotChecked=0, Total=15252 [2021-11-12 23:50:16,801 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand has 119 states, 119 states have (on average 1.4621848739495797) internal successors, (174), 119 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:50:33,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:33,189 INFO L93 Difference]: Finished difference Result 111 states and 120 transitions. [2021-11-12 23:50:33,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-11-12 23:50:33,189 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 119 states have (on average 1.4621848739495797) internal successors, (174), 119 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-12 23:50:33,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:33,190 INFO L225 Difference]: With dead ends: 111 [2021-11-12 23:50:33,190 INFO L226 Difference]: Without dead ends: 108 [2021-11-12 23:50:33,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 121 SyntacticMatches, 10 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9340 ImplicationChecksByTransitivity, 25.7s TimeCoverageRelationStatistics Valid=1689, Invalid=31983, Unknown=0, NotChecked=0, Total=33672 [2021-11-12 23:50:33,192 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 19 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 4210 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3107.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 4548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.09ms SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 4210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3551.35ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:33,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 260 Invalid, 4548 Unknown, 0 Unchecked, 8.09ms Time], IncrementalHoareTripleChecker [338 Valid, 4210 Invalid, 0 Unknown, 0 Unchecked, 3551.35ms Time] [2021-11-12 23:50:33,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-11-12 23:50:33,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 91. [2021-11-12 23:50:33,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.0888888888888888) internal successors, (98), 90 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:50:33,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2021-11-12 23:50:33,240 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 64 [2021-11-12 23:50:33,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:33,240 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2021-11-12 23:50:33,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 119 states have (on average 1.4621848739495797) internal successors, (174), 119 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:50:33,240 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2021-11-12 23:50:33,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-12 23:50:33,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:33,240 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:33,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-11-12 23:50:33,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1684 [2021-11-12 23:50:33,441 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:50:33,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:33,441 INFO L85 PathProgramCache]: Analyzing trace with hash 87604220, now seen corresponding path program 31 times [2021-11-12 23:50:33,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:50:33,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232443728] [2021-11-12 23:50:33,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:33,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:50:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:33,701 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 67 proven. 77 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-11-12 23:50:33,701 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:50:33,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232443728] [2021-11-12 23:50:33,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232443728] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:50:33,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529883940] [2021-11-12 23:50:33,702 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:50:33,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:50:33,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:50:33,707 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:50:33,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-11-12 23:50:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:33,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-12 23:50:33,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:34,227 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 78 proven. 66 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-11-12 23:50:34,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:34,375 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 78 proven. 66 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-11-12 23:50:34,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529883940] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:50:34,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1680566047] [2021-11-12 23:50:34,377 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:50:34,377 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:50:34,377 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:50:34,377 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:50:34,377 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:50:34,381 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,381 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:34,382 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,382 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:50:34,383 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:34,383 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,383 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:50:34,384 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:50:34,386 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_99|], 21=[|v_#valid_100|]} [2021-11-12 23:50:34,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:50:34,395 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,395 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:50:34,396 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,396 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:50:34,396 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:34,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,399 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:50:34,415 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,417 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:50:34,418 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,418 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:50:34,419 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:34,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,421 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,422 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,423 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:50:34,424 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:50:34,424 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:50:34,428 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:50:34,428 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:34,429 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,429 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:50:34,430 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:34,430 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,430 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:50:34,432 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:50:34,434 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_100|], 15=[|v_#valid_101|]} [2021-11-12 23:50:34,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,449 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:50:34,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:50:34,450 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:50:34,451 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,452 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:50:34,452 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:34,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,456 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:50:34,469 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:50:34,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,471 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:50:34,471 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:34,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,475 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:50:34,478 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:50:34,478 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:50:34,480 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,482 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:34,482 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,482 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:50:34,484 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:50:34,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:50:34,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:50:34,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:50:34,497 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:34,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,501 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,503 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,505 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:50:34,505 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:50:34,505 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:50:34,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,548 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,555 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:34,558 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,558 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:34,559 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:50:34,560 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:34,560 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,561 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:50:34,564 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:50:34,564 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:34,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,570 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:50:34,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:50:34,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:50:34,592 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,593 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:50:34,593 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,593 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:50:34,594 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:34,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:34,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:50:34,609 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,611 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:50:34,611 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,611 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:50:34,612 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:34,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,635 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,645 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:50:34,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:50:34,649 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:50:34,650 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:50:34,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,689 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:50:34,690 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:34,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,690 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:50:34,691 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:50:34,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:50:34,696 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:50:34,697 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,697 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:50:34,697 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:34,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,699 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,700 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,700 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:50:34,701 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:50:34,701 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:50:34,705 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:50:34,706 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:50:34,707 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,709 INFO L185 QuantifierPusher]: treesize reduction 3, result has 94.3 percent of original size 50 [2021-11-12 23:50:34,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,730 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:50:34,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-12 23:50:34,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,755 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:50:34,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:50:34,760 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:50:34,762 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:50:34,763 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,765 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:50:34,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,783 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:50:34,786 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:50:34,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,810 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:50:34,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:50:34,815 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:50:34,817 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:50:34,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,819 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:50:34,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:50:34,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,858 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:50:34,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:50:34,864 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:50:34,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:50:34,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:34,868 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:50:34,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,885 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:50:34,888 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:50:34,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:34,911 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:50:34,912 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:50:34,917 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:50:35,463 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:50:35,463 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:50:35,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 40 [2021-11-12 23:50:35,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126254925] [2021-11-12 23:50:35,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:50:35,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-12 23:50:35,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:50:35,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-12 23:50:35,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=418, Invalid=1562, Unknown=0, NotChecked=0, Total=1980 [2021-11-12 23:50:35,465 INFO L87 Difference]: Start difference. First operand 91 states and 98 transitions. Second operand has 40 states, 40 states have (on average 1.3) internal successors, (52), 40 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:50:35,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:35,930 INFO L93 Difference]: Finished difference Result 188 states and 203 transitions. [2021-11-12 23:50:35,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-12 23:50:35,930 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 1.3) internal successors, (52), 40 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-12 23:50:35,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:35,931 INFO L225 Difference]: With dead ends: 188 [2021-11-12 23:50:35,931 INFO L226 Difference]: Without dead ends: 100 [2021-11-12 23:50:35,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 869 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=676, Invalid=2516, Unknown=0, NotChecked=0, Total=3192 [2021-11-12 23:50:35,932 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 37 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 230.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.62ms SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 280.81ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:35,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 19 Invalid, 758 Unknown, 0 Unchecked, 1.62ms Time], IncrementalHoareTripleChecker [364 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 280.81ms Time] [2021-11-12 23:50:35,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-11-12 23:50:35,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 93. [2021-11-12 23:50:35,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.076086956521739) internal successors, (99), 92 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:50:35,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 99 transitions. [2021-11-12 23:50:35,972 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 99 transitions. Word has length 65 [2021-11-12 23:50:35,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:35,972 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 99 transitions. [2021-11-12 23:50:35,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 1.3) internal successors, (52), 40 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:50:35,973 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 99 transitions. [2021-11-12 23:50:35,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-12 23:50:35,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:35,973 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:36,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-11-12 23:50:36,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1742 [2021-11-12 23:50:36,199 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:50:36,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:36,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1815582693, now seen corresponding path program 32 times [2021-11-12 23:50:36,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:50:36,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302589599] [2021-11-12 23:50:36,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:36,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:50:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:36,578 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 55 proven. 89 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-12 23:50:36,579 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:50:36,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302589599] [2021-11-12 23:50:36,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302589599] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:50:36,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256180872] [2021-11-12 23:50:36,579 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:50:36,579 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:50:36,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:50:36,580 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:50:36,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-11-12 23:50:36,922 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-11-12 23:50:36,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:50:36,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-12 23:50:36,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:37,282 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 66 proven. 78 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-12 23:50:37,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:50:37,411 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 66 proven. 78 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-12 23:50:37,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256180872] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:50:37,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [351324931] [2021-11-12 23:50:37,413 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:50:37,413 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:50:37,413 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:50:37,413 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:50:37,414 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:50:37,427 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,427 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:37,427 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,428 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:50:37,428 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:37,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,428 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:50:37,429 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:50:37,430 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_101|], 21=[|v_#valid_102|]} [2021-11-12 23:50:37,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:50:37,437 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,437 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:50:37,437 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,438 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:50:37,438 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:37,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,440 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:50:37,464 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:50:37,466 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,467 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:50:37,467 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:37,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,470 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:50:37,472 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:50:37,472 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:50:37,476 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:50:37,477 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:37,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:50:37,478 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:37,478 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,479 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:50:37,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:50:37,482 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_102|], 15=[|v_#valid_103|]} [2021-11-12 23:50:37,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,494 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:50:37,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:50:37,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:50:37,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:50:37,496 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:37,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,499 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:50:37,509 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:50:37,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:50:37,511 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:37,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,514 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:50:37,515 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:50:37,516 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:50:37,517 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,518 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:37,518 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 23:50:37,519 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size 144 [2021-11-12 23:50:37,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-12 23:50:37,527 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,528 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:50:37,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,529 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:50:37,529 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:37,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,531 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,533 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size [2021-11-12 23:50:37,534 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-12 23:50:37,534 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:50:37,534 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:145, output treesize:138 [2021-11-12 23:50:37,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,562 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,566 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:37,568 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,569 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:37,569 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,569 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-12 23:50:37,570 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:37,570 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,570 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:50:37,572 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-11-12 23:50:37,572 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:37,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-11-12 23:50:37,578 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 367 [2021-11-12 23:50:37,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 45 [2021-11-12 23:50:37,613 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,615 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-12 23:50:37,615 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,616 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-12 23:50:37,616 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:37,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:50:37,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:50:37,634 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,635 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:50:37,636 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,636 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:50:37,636 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:37,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,655 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,662 INFO L180 QuantifierPusher]: treesize reduction 124, result has 72.2 percent of original size [2021-11-12 23:50:37,664 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-11-12 23:50:37,664 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:50:37,665 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:454, output treesize:322 [2021-11-12 23:50:37,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,696 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:50:37,697 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:50:37,697 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:50:37,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:50:37,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:50:37,712 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,712 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:50:37,713 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,713 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:50:37,713 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:50:37,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,714 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,715 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:50:37,716 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:50:37,716 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:50:37,719 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:50:37,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:50:37,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,722 INFO L185 QuantifierPusher]: treesize reduction 3, result has 94.3 percent of original size 50 [2021-11-12 23:50:37,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,734 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:50:37,735 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-12 23:50:37,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,751 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:50:37,752 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:50:37,755 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:50:37,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:50:37,756 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,757 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:50:37,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,768 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:50:37,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:50:37,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,784 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:50:37,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:50:37,788 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:50:37,789 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:50:37,790 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,791 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:50:37,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,802 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:50:37,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:50:37,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,819 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:50:37,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:50:37,823 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:50:37,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:50:37,825 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:50:37,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:50:37,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:50:37,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:50:37,853 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:50:37,854 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:50:37,858 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:50:38,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:50:38,385 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:50:38,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 41 [2021-11-12 23:50:38,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806257180] [2021-11-12 23:50:38,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:50:38,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-11-12 23:50:38,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:50:38,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-11-12 23:50:38,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=1655, Unknown=0, NotChecked=0, Total=2070 [2021-11-12 23:50:38,387 INFO L87 Difference]: Start difference. First operand 93 states and 99 transitions. Second operand has 41 states, 41 states have (on average 1.5853658536585367) internal successors, (65), 41 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:50:38,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:50:38,834 INFO L93 Difference]: Finished difference Result 97 states and 103 transitions. [2021-11-12 23:50:38,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-12 23:50:38,835 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 1.5853658536585367) internal successors, (65), 41 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-12 23:50:38,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:50:38,835 INFO L225 Difference]: With dead ends: 97 [2021-11-12 23:50:38,835 INFO L226 Difference]: Without dead ends: 70 [2021-11-12 23:50:38,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 178 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1205 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=696, Invalid=2844, Unknown=0, NotChecked=0, Total=3540 [2021-11-12 23:50:38,836 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 12 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 220.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.42ms SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 267.42ms IncrementalHoareTripleChecker+Time [2021-11-12 23:50:38,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 19 Invalid, 822 Unknown, 0 Unchecked, 1.42ms Time], IncrementalHoareTripleChecker [304 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 267.42ms Time] [2021-11-12 23:50:38,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-12 23:50:38,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-11-12 23:50:38,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.0724637681159421) internal successors, (74), 69 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:50:38,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 74 transitions. [2021-11-12 23:50:38,858 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 74 transitions. Word has length 66 [2021-11-12 23:50:38,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:50:38,858 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 74 transitions. [2021-11-12 23:50:38,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 1.5853658536585367) internal successors, (65), 41 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:50:38,858 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions. [2021-11-12 23:50:38,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-12 23:50:38,859 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:50:38,859 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:50:38,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-11-12 23:50:39,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1800,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:50:39,084 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:50:39,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:50:39,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1006180919, now seen corresponding path program 33 times [2021-11-12 23:50:39,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:50:39,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316431644] [2021-11-12 23:50:39,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:50:39,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:50:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:50:48,609 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 36 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:50:48,609 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:50:48,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316431644] [2021-11-12 23:50:48,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316431644] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:50:48,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348893276] [2021-11-12 23:50:48,610 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:50:48,610 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:50:48,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:50:48,610 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:50:48,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-11-12 23:50:48,688 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:50:48,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:50:48,692 WARN L261 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 223 conjunts are in the unsatisfiable core [2021-11-12 23:50:48,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:50:54,471 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 389 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:50:54,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:51:07,335 WARN L227 SmtUtils]: Spent 7.89s on a formula simplification. DAG size of input: 1166 DAG size of output: 638 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-12 23:51:07,344 INFO L354 Elim1Store]: treesize reduction 2499, result has 38.6 percent of original size [2021-11-12 23:51:07,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 205 treesize of output 1601 [2021-11-12 23:52:24,900 INFO L354 Elim1Store]: treesize reduction 4023, result has 1.2 percent of original size [2021-11-12 23:52:24,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 206 treesize of output 78 [2021-11-12 23:52:25,093 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-12 23:52:25,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348893276] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:52:25,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1415457705] [2021-11-12 23:52:25,095 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:52:25,095 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:52:25,095 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:52:25,095 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:52:25,095 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:52:25,098 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,099 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:25,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:52:25,100 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:25,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:52:25,102 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:52:25,103 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_104|], 21=[|v_#valid_105|]} [2021-11-12 23:52:25,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:52:25,111 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,111 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:52:25,112 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,112 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:52:25,112 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:25,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,115 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:52:25,128 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:52:25,130 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,130 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:52:25,130 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:25,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,133 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,134 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:52:25,135 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:25,135 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:52:25,139 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:52:25,139 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:25,140 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,140 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:52:25,141 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:25,141 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:52:25,143 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:52:25,145 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_105|], 15=[|v_#valid_106|]} [2021-11-12 23:52:25,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,158 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:52:25,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:52:25,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,160 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:52:25,160 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:52:25,161 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:25,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,165 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:52:25,177 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:52:25,179 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:52:25,179 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:25,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,183 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,185 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:52:25,186 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:25,187 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:52:25,189 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,190 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:25,190 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,191 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 23:52:25,192 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size 144 [2021-11-12 23:52:25,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-12 23:52:25,202 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,203 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:52:25,203 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,203 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:52:25,204 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:25,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,208 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,209 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size [2021-11-12 23:52:25,211 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-12 23:52:25,211 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:25,212 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:145, output treesize:138 [2021-11-12 23:52:25,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,251 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:25,252 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,253 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:25,253 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,253 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:52:25,254 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:25,254 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,254 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-12 23:52:25,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-11-12 23:52:25,256 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:25,258 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-11-12 23:52:25,261 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 367 [2021-11-12 23:52:25,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:52:25,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:52:25,278 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:52:25,278 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:25,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:25,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 45 [2021-11-12 23:52:25,290 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,291 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-12 23:52:25,291 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,292 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-12 23:52:25,292 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:25,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,307 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,313 INFO L180 QuantifierPusher]: treesize reduction 124, result has 72.2 percent of original size [2021-11-12 23:52:25,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-11-12 23:52:25,315 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:52:25,315 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:454, output treesize:322 [2021-11-12 23:52:25,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,341 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:52:25,341 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:25,342 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,342 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:52:25,342 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:52:25,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:52:25,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,347 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:52:25,347 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,347 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:52:25,347 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:25,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,348 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,349 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,349 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:52:25,350 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:25,350 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:52:25,352 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:52:25,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:52:25,354 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,355 INFO L185 QuantifierPusher]: treesize reduction 3, result has 94.3 percent of original size 50 [2021-11-12 23:52:25,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,365 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:52:25,367 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-12 23:52:25,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,382 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:52:25,382 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:52:25,385 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:52:25,386 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:52:25,387 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:52:25,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:52:25,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,412 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:52:25,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:52:25,416 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:52:25,417 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:52:25,417 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,418 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:52:25,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,430 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:52:25,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,445 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:52:25,446 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:52:25,448 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:52:25,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:52:25,454 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:25,455 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:52:25,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,465 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:52:25,467 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:52:25,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:25,490 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:52:25,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:52:25,494 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:52:26,687 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:52:26,687 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:52:26,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 40, 30] total 129 [2021-11-12 23:52:26,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201648579] [2021-11-12 23:52:26,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:52:26,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 129 states [2021-11-12 23:52:26,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:52:26,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2021-11-12 23:52:26,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=808, Invalid=17014, Unknown=0, NotChecked=0, Total=17822 [2021-11-12 23:52:26,689 INFO L87 Difference]: Start difference. First operand 70 states and 74 transitions. Second operand has 129 states, 129 states have (on average 1.4573643410852712) internal successors, (188), 129 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:52:45,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:52:45,851 INFO L93 Difference]: Finished difference Result 119 states and 128 transitions. [2021-11-12 23:52:45,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-12 23:52:45,852 INFO L78 Accepts]: Start accepts. Automaton has has 129 states, 129 states have (on average 1.4573643410852712) internal successors, (188), 129 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-12 23:52:45,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:52:45,853 INFO L225 Difference]: With dead ends: 119 [2021-11-12 23:52:45,853 INFO L226 Difference]: Without dead ends: 116 [2021-11-12 23:52:45,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 123 SyntacticMatches, 18 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12599 ImplicationChecksByTransitivity, 30.6s TimeCoverageRelationStatistics Valid=2142, Invalid=37658, Unknown=0, NotChecked=0, Total=39800 [2021-11-12 23:52:45,855 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 19 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 4129 mSolverCounterSat, 399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3609.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 4528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.19ms SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 4129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4121.72ms IncrementalHoareTripleChecker+Time [2021-11-12 23:52:45,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 222 Invalid, 4528 Unknown, 0 Unchecked, 8.19ms Time], IncrementalHoareTripleChecker [399 Valid, 4129 Invalid, 0 Unknown, 0 Unchecked, 4121.72ms Time] [2021-11-12 23:52:45,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-11-12 23:52:45,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 98. [2021-11-12 23:52:45,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.0824742268041236) internal successors, (105), 97 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:52:45,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 105 transitions. [2021-11-12 23:52:45,914 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 105 transitions. Word has length 69 [2021-11-12 23:52:45,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:52:45,915 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 105 transitions. [2021-11-12 23:52:45,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 129 states, 129 states have (on average 1.4573643410852712) internal successors, (188), 129 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:52:45,915 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 105 transitions. [2021-11-12 23:52:45,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-12 23:52:45,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:52:45,916 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:52:45,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-11-12 23:52:46,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1858 [2021-11-12 23:52:46,131 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:52:46,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:52:46,132 INFO L85 PathProgramCache]: Analyzing trace with hash 117301309, now seen corresponding path program 34 times [2021-11-12 23:52:46,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:52:46,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909567211] [2021-11-12 23:52:46,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:52:46,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:52:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:52:46,439 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 79 proven. 90 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-12 23:52:46,439 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:52:46,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909567211] [2021-11-12 23:52:46,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909567211] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:52:46,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358845091] [2021-11-12 23:52:46,440 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:52:46,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:52:46,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:52:46,441 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:52:46,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-11-12 23:52:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:52:46,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-12 23:52:46,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:52:47,014 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 91 proven. 78 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-12 23:52:47,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:52:47,169 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 91 proven. 78 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-12 23:52:47,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358845091] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:52:47,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [296171107] [2021-11-12 23:52:47,171 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:52:47,171 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:52:47,171 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:52:47,171 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:52:47,171 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:52:47,174 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,174 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:47,175 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,175 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:52:47,175 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:47,176 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,176 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:52:47,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:52:47,178 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_107|], 21=[|v_#valid_108|]} [2021-11-12 23:52:47,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:52:47,187 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,187 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:52:47,188 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,188 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:52:47,188 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:47,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,191 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:52:47,205 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,207 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:52:47,207 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,207 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:52:47,208 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:47,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,210 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,211 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,212 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:52:47,212 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:47,213 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:52:47,216 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:52:47,217 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:47,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:52:47,218 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:47,218 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:52:47,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:52:47,222 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_108|], 15=[|v_#valid_109|]} [2021-11-12 23:52:47,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,237 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:52:47,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:52:47,237 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,239 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:52:47,239 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,239 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:52:47,240 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:47,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,244 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:52:47,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:52:47,258 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,258 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:52:47,258 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:47,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,262 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,264 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,265 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:52:47,265 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:47,266 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:52:47,268 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,269 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:47,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,270 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:52:47,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:52:47,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:52:47,281 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,282 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:52:47,282 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,283 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:52:47,283 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:47,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,287 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,289 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,290 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:52:47,291 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:47,291 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:52:47,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,331 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,336 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:47,338 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,338 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:47,338 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,339 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:52:47,339 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:47,339 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,340 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:52:47,342 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:52:47,342 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:47,343 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:52:47,347 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:52:47,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:52:47,361 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,362 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:52:47,362 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:52:47,363 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:47,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:47,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:52:47,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:52:47,376 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:52:47,377 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:47,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,392 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,397 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:52:47,399 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:52:47,400 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:52:47,400 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:52:47,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,426 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:52:47,426 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:47,426 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,427 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:52:47,427 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:52:47,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:52:47,431 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,431 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:52:47,432 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,432 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:52:47,432 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:47,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,433 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,434 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,434 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:52:47,434 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:47,434 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:52:47,437 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:52:47,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:52:47,445 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,446 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-12 23:52:47,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,462 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,464 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-12 23:52:47,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,487 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:52:47,489 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:52:47,492 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:52:47,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:52:47,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,496 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:52:47,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,512 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:52:47,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:52:47,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,533 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:52:47,534 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:52:47,537 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:52:47,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:52:47,538 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,539 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:52:47,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,549 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:52:47,551 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:52:47,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,565 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:52:47,566 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:52:47,568 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:52:47,569 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:52:47,570 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:47,571 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:52:47,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,581 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:52:47,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:52:47,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:47,596 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:52:47,597 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:52:47,600 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:52:48,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:52:48,124 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:52:48,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 43 [2021-11-12 23:52:48,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071321028] [2021-11-12 23:52:48,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:52:48,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-11-12 23:52:48,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:52:48,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-11-12 23:52:48,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=477, Invalid=1779, Unknown=0, NotChecked=0, Total=2256 [2021-11-12 23:52:48,126 INFO L87 Difference]: Start difference. First operand 98 states and 105 transitions. Second operand has 43 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:52:48,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:52:48,619 INFO L93 Difference]: Finished difference Result 202 states and 217 transitions. [2021-11-12 23:52:48,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-12 23:52:48,620 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-12 23:52:48,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:52:48,620 INFO L225 Difference]: With dead ends: 202 [2021-11-12 23:52:48,620 INFO L226 Difference]: Without dead ends: 107 [2021-11-12 23:52:48,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 993 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=776, Invalid=2884, Unknown=0, NotChecked=0, Total=3660 [2021-11-12 23:52:48,621 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 28 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 237.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.56ms SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 292.82ms IncrementalHoareTripleChecker+Time [2021-11-12 23:52:48,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 19 Invalid, 867 Unknown, 0 Unchecked, 1.56ms Time], IncrementalHoareTripleChecker [440 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 292.82ms Time] [2021-11-12 23:52:48,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-12 23:52:48,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 100. [2021-11-12 23:52:48,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.0707070707070707) internal successors, (106), 99 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:52:48,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 106 transitions. [2021-11-12 23:52:48,687 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 106 transitions. Word has length 70 [2021-11-12 23:52:48,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:52:48,688 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 106 transitions. [2021-11-12 23:52:48,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:52:48,688 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 106 transitions. [2021-11-12 23:52:48,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-12 23:52:48,689 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:52:48,689 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:52:48,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-11-12 23:52:48,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1916,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:52:48,903 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:52:48,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:52:48,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1851191820, now seen corresponding path program 35 times [2021-11-12 23:52:48,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:52:48,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837235432] [2021-11-12 23:52:48,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:52:48,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:52:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:52:49,244 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 66 proven. 103 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2021-11-12 23:52:49,244 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:52:49,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837235432] [2021-11-12 23:52:49,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837235432] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:52:49,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303206985] [2021-11-12 23:52:49,245 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:52:49,245 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:52:49,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:52:49,247 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:52:49,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-11-12 23:52:49,548 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-12 23:52:49,549 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:52:49,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-12 23:52:49,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:52:49,989 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 91 proven. 91 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-12 23:52:49,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:52:50,457 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 91 proven. 111 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-11-12 23:52:50,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303206985] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:52:50,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1153468357] [2021-11-12 23:52:50,458 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:52:50,458 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:52:50,458 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:52:50,459 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:52:50,459 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:52:50,464 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,465 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:50,465 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:52:50,466 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:50,467 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,467 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:52:50,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:52:50,470 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_109|], 21=[|v_#valid_110|]} [2021-11-12 23:52:50,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:52:50,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,479 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:52:50,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:52:50,480 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:50,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,483 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:52:50,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:52:50,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:52:50,500 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:50,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,502 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,503 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,504 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:52:50,505 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:50,505 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:52:50,508 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:52:50,509 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:50,509 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:52:50,510 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:50,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:52:50,513 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:52:50,514 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_110|], 15=[|v_#valid_111|]} [2021-11-12 23:52:50,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,529 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:52:50,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:52:50,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,531 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:52:50,531 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,532 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:52:50,532 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:50,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,536 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:52:50,549 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,550 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:52:50,551 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,551 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:52:50,551 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:50,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,555 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,557 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,558 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:52:50,559 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:50,559 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:52:50,561 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,562 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:50,563 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,563 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 23:52:50,565 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size 144 [2021-11-12 23:52:50,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-12 23:52:50,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:52:50,576 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:52:50,577 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:50,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,581 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,583 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size [2021-11-12 23:52:50,584 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-12 23:52:50,585 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:50,585 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:145, output treesize:138 [2021-11-12 23:52:50,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,625 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,631 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:50,634 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,635 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:50,636 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,636 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-12 23:52:50,636 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:50,637 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,637 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:52:50,641 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-11-12 23:52:50,641 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:50,644 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,646 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-11-12 23:52:50,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 367 [2021-11-12 23:52:50,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 45 [2021-11-12 23:52:50,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-12 23:52:50,675 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-12 23:52:50,675 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:50,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:50,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:52:50,689 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,690 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:52:50,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,691 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:52:50,691 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:50,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,714 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,724 INFO L180 QuantifierPusher]: treesize reduction 124, result has 72.2 percent of original size [2021-11-12 23:52:50,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-11-12 23:52:50,728 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:52:50,729 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:454, output treesize:322 [2021-11-12 23:52:50,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,767 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:52:50,768 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:50,769 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:52:50,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:52:50,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:52:50,775 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,775 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:52:50,775 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,776 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:52:50,776 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:50,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,777 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,778 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,779 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:52:50,779 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:50,779 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:52:50,783 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:52:50,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:52:50,786 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,787 INFO L185 QuantifierPusher]: treesize reduction 7, result has 87.7 percent of original size 50 [2021-11-12 23:52:50,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,803 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:52:50,806 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-12 23:52:50,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,827 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:52:50,828 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:52:50,832 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:52:50,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:52:50,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:52:50,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,851 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:52:50,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,878 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:52:50,879 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:52:50,882 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:52:50,884 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:52:50,885 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:52:50,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,900 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,903 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:52:50,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,924 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:52:50,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:52:50,928 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:52:50,930 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:52:50,931 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:52:50,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:50,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:52:50,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:50,971 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:52:50,972 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:52:50,976 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:52:51,498 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:52:51,498 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:52:51,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 30, 31] total 60 [2021-11-12 23:52:51,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105348753] [2021-11-12 23:52:51,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:52:51,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2021-11-12 23:52:51,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:52:51,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-11-12 23:52:51,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=977, Invalid=3183, Unknown=0, NotChecked=0, Total=4160 [2021-11-12 23:52:51,501 INFO L87 Difference]: Start difference. First operand 100 states and 106 transitions. Second operand has 60 states, 60 states have (on average 1.7) internal successors, (102), 60 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:52:52,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:52:52,283 INFO L93 Difference]: Finished difference Result 104 states and 110 transitions. [2021-11-12 23:52:52,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-12 23:52:52,283 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 1.7) internal successors, (102), 60 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-12 23:52:52,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:52:52,284 INFO L225 Difference]: With dead ends: 104 [2021-11-12 23:52:52,284 INFO L226 Difference]: Without dead ends: 75 [2021-11-12 23:52:52,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 175 SyntacticMatches, 3 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2794 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1894, Invalid=6478, Unknown=0, NotChecked=0, Total=8372 [2021-11-12 23:52:52,285 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 28 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 275.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.75ms SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 331.93ms IncrementalHoareTripleChecker+Time [2021-11-12 23:52:52,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 15 Invalid, 1026 Unknown, 0 Unchecked, 1.75ms Time], IncrementalHoareTripleChecker [451 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 331.93ms Time] [2021-11-12 23:52:52,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-12 23:52:52,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-11-12 23:52:52,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.0675675675675675) internal successors, (79), 74 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:52:52,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 79 transitions. [2021-11-12 23:52:52,310 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 79 transitions. Word has length 71 [2021-11-12 23:52:52,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:52:52,310 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 79 transitions. [2021-11-12 23:52:52,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 1.7) internal successors, (102), 60 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:52:52,310 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 79 transitions. [2021-11-12 23:52:52,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-12 23:52:52,310 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:52:52,310 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:52:52,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-11-12 23:52:52,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1974,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:52:52,511 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:52:52,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:52:52,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1036205414, now seen corresponding path program 36 times [2021-11-12 23:52:52,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:52:52,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021610511] [2021-11-12 23:52:52,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:52:52,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:52:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:53:04,667 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 55 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:53:04,667 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:53:04,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021610511] [2021-11-12 23:53:04,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021610511] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:53:04,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808313587] [2021-11-12 23:53:04,668 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:53:04,668 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:53:04,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:53:04,669 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:53:04,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-11-12 23:53:04,749 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:53:04,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:53:04,754 WARN L261 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 241 conjunts are in the unsatisfiable core [2021-11-12 23:53:04,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:53:10,570 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 454 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:53:10,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:53:25,974 WARN L227 SmtUtils]: Spent 10.88s on a formula simplification. DAG size of input: 1367 DAG size of output: 743 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-12 23:53:25,976 INFO L354 Elim1Store]: treesize reduction 2954, result has 38.5 percent of original size [2021-11-12 23:53:25,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 26 select indices, 26 select index equivalence classes, 0 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 325 case distinctions, treesize of input 222 treesize of output 1877 [2021-11-12 23:55:02,891 INFO L354 Elim1Store]: treesize reduction 4748, result has 1.1 percent of original size [2021-11-12 23:55:02,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 26 select indices, 26 select index equivalence classes, 0 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 325 case distinctions, treesize of input 223 treesize of output 84 [2021-11-12 23:55:03,048 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 364 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-12 23:55:03,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808313587] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:55:03,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [251637946] [2021-11-12 23:55:03,049 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:55:03,049 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:55:03,049 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:55:03,049 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:55:03,049 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:55:03,058 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,058 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:03,059 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:55:03,059 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:03,060 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:55:03,061 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:55:03,063 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_112|], 21=[|v_#valid_113|]} [2021-11-12 23:55:03,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:55:03,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:55:03,073 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:55:03,074 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:03,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,076 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:55:03,091 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,092 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:55:03,093 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:55:03,093 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:03,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,095 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:55:03,096 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:55:03,096 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:55:03,099 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:55:03,099 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:03,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:55:03,100 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:03,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:55:03,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:55:03,103 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_113|], 15=[|v_#valid_114|]} [2021-11-12 23:55:03,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,115 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:55:03,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:55:03,115 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:55:03,116 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,117 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:55:03,117 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:03,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,119 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:55:03,130 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,131 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:55:03,131 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,132 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:55:03,132 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:03,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,134 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,135 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,136 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:55:03,136 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:55:03,136 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:55:03,137 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,138 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:03,138 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:55:03,140 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:55:03,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:55:03,147 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:55:03,160 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,160 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:55:03,160 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:03,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,165 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,166 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,168 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:55:03,168 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:55:03,168 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:55:03,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,243 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,250 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:03,253 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,253 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:03,254 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,254 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:55:03,255 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:03,255 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:55:03,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:55:03,259 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:03,261 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,264 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:55:03,268 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:55:03,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:55:03,291 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,292 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:55:03,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,293 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:55:03,293 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:03,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:03,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:55:03,306 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,307 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:55:03,307 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,308 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:55:03,308 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:03,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,332 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,341 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:55:03,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:55:03,346 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:55:03,346 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:55:03,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,396 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:55:03,396 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:03,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:55:03,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:55:03,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:55:03,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,402 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:55:03,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:55:03,403 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:03,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,404 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,404 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:55:03,405 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:55:03,405 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:55:03,408 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:55:03,412 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:55:03,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,414 INFO L185 QuantifierPusher]: treesize reduction 7, result has 87.7 percent of original size 50 [2021-11-12 23:55:03,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,431 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:55:03,434 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-12 23:55:03,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,455 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:55:03,456 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:55:03,460 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:55:03,461 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:55:03,462 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,463 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:55:03,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,485 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:55:03,487 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:55:03,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,508 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:55:03,509 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:55:03,513 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:55:03,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:55:03,516 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,517 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:55:03,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,532 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:55:03,535 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:55:03,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,556 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:55:03,557 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:55:03,561 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:55:03,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:55:03,564 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,565 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:55:03,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,580 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:03,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:55:03,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:03,608 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:55:03,609 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:55:03,614 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:55:04,724 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:55:04,724 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:55:04,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 43, 32] total 139 [2021-11-12 23:55:04,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198726827] [2021-11-12 23:55:04,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:55:04,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 139 states [2021-11-12 23:55:04,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:55:04,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2021-11-12 23:55:04,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1067, Invalid=19525, Unknown=0, NotChecked=0, Total=20592 [2021-11-12 23:55:04,727 INFO L87 Difference]: Start difference. First operand 75 states and 79 transitions. Second operand has 139 states, 139 states have (on average 1.4532374100719425) internal successors, (202), 139 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:55:25,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:55:25,142 INFO L93 Difference]: Finished difference Result 127 states and 136 transitions. [2021-11-12 23:55:25,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-11-12 23:55:25,143 INFO L78 Accepts]: Start accepts. Automaton has has 139 states, 139 states have (on average 1.4532374100719425) internal successors, (202), 139 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-11-12 23:55:25,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:55:25,144 INFO L225 Difference]: With dead ends: 127 [2021-11-12 23:55:25,144 INFO L226 Difference]: Without dead ends: 124 [2021-11-12 23:55:25,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 133 SyntacticMatches, 18 SemanticMatches, 212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17676 ImplicationChecksByTransitivity, 31.7s TimeCoverageRelationStatistics Valid=2572, Invalid=43010, Unknown=0, NotChecked=0, Total=45582 [2021-11-12 23:55:25,146 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 19 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 4338 mSolverCounterSat, 343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4103.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 4681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.19ms SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 4338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4684.87ms IncrementalHoareTripleChecker+Time [2021-11-12 23:55:25,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 214 Invalid, 4681 Unknown, 0 Unchecked, 9.19ms Time], IncrementalHoareTripleChecker [343 Valid, 4338 Invalid, 0 Unknown, 0 Unchecked, 4684.87ms Time] [2021-11-12 23:55:25,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-11-12 23:55:25,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 105. [2021-11-12 23:55:25,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.0769230769230769) internal successors, (112), 104 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:55:25,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 112 transitions. [2021-11-12 23:55:25,184 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 112 transitions. Word has length 74 [2021-11-12 23:55:25,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:55:25,184 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 112 transitions. [2021-11-12 23:55:25,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 139 states, 139 states have (on average 1.4532374100719425) internal successors, (202), 139 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:55:25,184 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 112 transitions. [2021-11-12 23:55:25,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-12 23:55:25,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:55:25,185 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:55:25,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-11-12 23:55:25,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2032,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:55:25,399 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:55:25,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:55:25,400 INFO L85 PathProgramCache]: Analyzing trace with hash 514587228, now seen corresponding path program 37 times [2021-11-12 23:55:25,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:55:25,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280934109] [2021-11-12 23:55:25,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:55:25,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:55:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:55:25,750 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 92 proven. 104 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2021-11-12 23:55:25,750 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:55:25,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280934109] [2021-11-12 23:55:25,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280934109] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:55:25,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826295969] [2021-11-12 23:55:25,751 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:55:25,751 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:55:25,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:55:25,756 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:55:25,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-11-12 23:55:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:55:25,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-12 23:55:25,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:55:26,319 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 105 proven. 91 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2021-11-12 23:55:26,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:55:26,467 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 105 proven. 91 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2021-11-12 23:55:26,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826295969] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:55:26,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [357864510] [2021-11-12 23:55:26,469 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:55:26,469 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:55:26,469 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:55:26,469 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:55:26,469 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:55:26,485 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,486 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:26,486 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,486 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:55:26,487 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:26,487 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,487 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:55:26,488 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:55:26,489 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_115|], 21=[|v_#valid_116|]} [2021-11-12 23:55:26,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:55:26,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:55:26,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:55:26,497 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:26,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,498 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:55:26,509 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:55:26,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:55:26,512 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:26,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,513 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:55:26,515 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:55:26,515 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:55:26,517 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:55:26,518 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:26,518 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:55:26,518 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:26,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,519 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:55:26,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:55:26,523 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_116|], 15=[|v_#valid_117|]} [2021-11-12 23:55:26,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,536 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:55:26,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:55:26,537 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:55:26,538 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:55:26,538 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:26,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,541 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:55:26,552 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,553 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:55:26,553 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,554 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:55:26,554 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:26,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,557 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,558 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:55:26,559 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:55:26,559 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:55:26,560 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,561 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:26,562 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,563 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 23:55:26,564 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size 144 [2021-11-12 23:55:26,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-12 23:55:26,597 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,598 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:55:26,598 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,599 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:55:26,599 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:26,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,603 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,605 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size [2021-11-12 23:55:26,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-12 23:55:26,607 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:55:26,608 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:145, output treesize:138 [2021-11-12 23:55:26,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,665 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,672 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:26,675 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,675 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:26,676 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,676 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:55:26,677 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:26,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-12 23:55:26,681 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-11-12 23:55:26,681 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:26,684 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,687 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-11-12 23:55:26,690 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 367 [2021-11-12 23:55:26,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 45 [2021-11-12 23:55:26,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,716 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-12 23:55:26,716 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-12 23:55:26,717 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:26,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:26,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:55:26,731 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,732 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:55:26,732 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,732 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:55:26,733 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:26,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,756 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,765 INFO L180 QuantifierPusher]: treesize reduction 124, result has 72.2 percent of original size [2021-11-12 23:55:26,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-11-12 23:55:26,770 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:55:26,770 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:454, output treesize:322 [2021-11-12 23:55:26,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,809 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:55:26,810 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:26,810 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,810 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:55:26,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:55:26,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:55:26,816 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,816 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:55:26,817 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,817 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:55:26,817 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:26,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,819 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,820 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:55:26,821 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:55:26,821 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:55:26,825 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:55:26,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:55:26,828 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,830 INFO L185 QuantifierPusher]: treesize reduction 7, result has 87.7 percent of original size 50 [2021-11-12 23:55:26,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,847 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:55:26,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-12 23:55:26,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,872 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:55:26,873 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:55:26,876 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:55:26,878 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:55:26,879 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,880 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:55:26,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,895 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:55:26,898 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:55:26,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,919 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:55:26,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:55:26,928 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:55:26,929 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:55:26,930 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,931 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-12 23:55:26,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,947 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-11-12 23:55:26,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-12 23:55:26,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,971 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:55:26,972 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:55:26,976 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:55:26,977 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:55:26,979 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:55:26,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:26,990 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:26,991 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:55:26,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:27,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:27,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:27,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:27,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:27,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:27,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:27,006 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:55:27,007 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:55:27,010 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:55:27,557 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:55:27,557 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:55:27,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 30] total 46 [2021-11-12 23:55:27,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893203221] [2021-11-12 23:55:27,557 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:55:27,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-11-12 23:55:27,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:55:27,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-11-12 23:55:27,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=540, Invalid=2010, Unknown=0, NotChecked=0, Total=2550 [2021-11-12 23:55:27,558 INFO L87 Difference]: Start difference. First operand 105 states and 112 transitions. Second operand has 46 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 46 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:55:28,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:55:28,178 INFO L93 Difference]: Finished difference Result 216 states and 231 transitions. [2021-11-12 23:55:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-12 23:55:28,179 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 46 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-12 23:55:28,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:55:28,180 INFO L225 Difference]: With dead ends: 216 [2021-11-12 23:55:28,180 INFO L226 Difference]: Without dead ends: 114 [2021-11-12 23:55:28,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1125 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=883, Invalid=3277, Unknown=0, NotChecked=0, Total=4160 [2021-11-12 23:55:28,181 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 36 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 290.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.90ms SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 354.69ms IncrementalHoareTripleChecker+Time [2021-11-12 23:55:28,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 19 Invalid, 891 Unknown, 0 Unchecked, 2.90ms Time], IncrementalHoareTripleChecker [497 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 354.69ms Time] [2021-11-12 23:55:28,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-11-12 23:55:28,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 107. [2021-11-12 23:55:28,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 1.0660377358490567) internal successors, (113), 106 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:55:28,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 113 transitions. [2021-11-12 23:55:28,252 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 113 transitions. Word has length 75 [2021-11-12 23:55:28,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:55:28,252 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 113 transitions. [2021-11-12 23:55:28,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 46 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:55:28,252 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 113 transitions. [2021-11-12 23:55:28,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-12 23:55:28,253 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:55:28,253 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:55:28,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-11-12 23:55:28,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2090 [2021-11-12 23:55:28,479 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:55:28,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:55:28,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1992571131, now seen corresponding path program 38 times [2021-11-12 23:55:28,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:55:28,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117412356] [2021-11-12 23:55:28,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:55:28,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:55:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:55:28,885 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 78 proven. 118 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2021-11-12 23:55:28,886 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:55:28,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117412356] [2021-11-12 23:55:28,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117412356] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:55:28,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165863241] [2021-11-12 23:55:28,886 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:55:28,886 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:55:28,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:55:28,887 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:55:28,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-11-12 23:55:29,176 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-12 23:55:29,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:55:29,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-12 23:55:29,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:55:29,588 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 91 proven. 105 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2021-11-12 23:55:29,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:55:29,742 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 91 proven. 105 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2021-11-12 23:55:29,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165863241] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:55:29,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [689971869] [2021-11-12 23:55:29,743 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:55:29,743 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:55:29,743 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:55:29,744 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:55:29,744 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:55:29,746 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,746 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:29,746 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,746 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:55:29,747 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:29,747 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,747 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:55:29,748 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:55:29,750 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_117|], 21=[|v_#valid_118|]} [2021-11-12 23:55:29,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:55:29,757 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,757 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:55:29,758 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:55:29,758 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:29,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:29,760 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:55:29,770 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:55:29,772 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:55:29,772 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:29,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:29,774 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,774 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,775 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:55:29,775 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:55:29,775 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 23:55:29,777 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 23:55:29,778 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:29,778 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,778 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:55:29,779 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:29,779 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,779 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:55:29,780 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-12 23:55:29,781 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_118|], 15=[|v_#valid_119|]} [2021-11-12 23:55:29,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,793 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 23:55:29,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 23:55:29,793 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:55:29,794 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,795 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:55:29,795 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:29,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:29,797 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 23:55:29,807 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,808 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:55:29,809 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,809 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:55:29,809 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:29,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:29,811 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,812 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:55:29,813 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:55:29,813 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:131 [2021-11-12 23:55:29,815 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,815 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:29,816 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,816 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:55:29,817 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-12 23:55:29,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:55:29,825 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,825 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:55:29,826 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:55:29,826 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:29,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:29,829 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,829 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,830 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-12 23:55:29,831 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:55:29,831 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:150 [2021-11-12 23:55:29,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:29,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:29,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:29,857 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,860 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:29,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,862 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:29,863 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:55:29,863 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:29,864 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,864 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-12 23:55:29,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-12 23:55:29,866 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:29,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,869 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-11-12 23:55:29,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-11-12 23:55:29,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-12 23:55:29,898 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:55:29,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-12 23:55:29,899 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:29,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:55:29,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-12 23:55:29,910 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:55:29,911 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:55:29,911 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:29,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:29,927 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,932 INFO L180 QuantifierPusher]: treesize reduction 129, result has 71.7 percent of original size [2021-11-12 23:55:29,934 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-11-12 23:55:29,934 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:55:29,934 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:327 [2021-11-12 23:55:29,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:29,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:29,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:29,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:29,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:29,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:29,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:29,960 INFO L180 QuantifierPusher]: treesize reduction 48, result has 59.3 percent of original size [2021-11-12 23:55:29,960 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:55:29,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,961 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:55:29,961 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-12 23:55:29,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:55:29,971 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,971 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:55:29,971 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,972 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:55:29,972 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:55:29,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:29,973 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,974 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 23:55:29,974 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:55:29,974 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-11-12 23:55:29,977 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.0 percent of original size [2021-11-12 23:55:29,978 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:55:29,980 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:29,981 INFO L185 QuantifierPusher]: treesize reduction 7, result has 87.7 percent of original size 50 [2021-11-12 23:55:29,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:29,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:29,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:29,992 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:55:29,994 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-12 23:55:29,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,008 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:55:30,009 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:55:30,011 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:55:30,012 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:55:30,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:30,013 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:55:30,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,023 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:30,024 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:55:30,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,038 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:55:30,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:55:30,041 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:55:30,042 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:55:30,043 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:30,044 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:55:30,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,054 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:30,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:55:30,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,073 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:55:30,074 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:55:30,076 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 23:55:30,077 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:55:30,078 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:30,079 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:55:30,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:55:30,107 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-12 23:55:30,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:55:30,147 INFO L180 QuantifierPusher]: treesize reduction 42, result has 60.7 percent of original size [2021-11-12 23:55:30,148 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 23:55:30,151 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:55:30,627 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:55:30,627 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:55:30,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 47 [2021-11-12 23:55:30,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017919463] [2021-11-12 23:55:30,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:55:30,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-11-12 23:55:30,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:55:30,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-11-12 23:55:30,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=535, Invalid=2117, Unknown=0, NotChecked=0, Total=2652 [2021-11-12 23:55:30,628 INFO L87 Difference]: Start difference. First operand 107 states and 113 transitions. Second operand has 47 states, 47 states have (on average 1.9148936170212767) internal successors, (90), 47 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:55:31,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:55:31,154 INFO L93 Difference]: Finished difference Result 111 states and 117 transitions. [2021-11-12 23:55:31,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-12 23:55:31,155 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 1.9148936170212767) internal successors, (90), 47 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-12 23:55:31,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:55:31,155 INFO L225 Difference]: With dead ends: 111 [2021-11-12 23:55:31,155 INFO L226 Difference]: Without dead ends: 80 [2021-11-12 23:55:31,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 206 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1560 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=903, Invalid=3653, Unknown=0, NotChecked=0, Total=4556 [2021-11-12 23:55:31,156 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 260.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.44ms SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 317.20ms IncrementalHoareTripleChecker+Time [2021-11-12 23:55:31,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 21 Invalid, 977 Unknown, 0 Unchecked, 1.44ms Time], IncrementalHoareTripleChecker [304 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 317.20ms Time] [2021-11-12 23:55:31,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-12 23:55:31,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-12 23:55:31,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.0632911392405062) internal successors, (84), 79 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:55:31,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 84 transitions. [2021-11-12 23:55:31,190 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 84 transitions. Word has length 76 [2021-11-12 23:55:31,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:55:31,190 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 84 transitions. [2021-11-12 23:55:31,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 1.9148936170212767) internal successors, (90), 47 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:55:31,191 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 84 transitions. [2021-11-12 23:55:31,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-12 23:55:31,191 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:55:31,191 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:55:31,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-11-12 23:55:31,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2148 [2021-11-12 23:55:31,392 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:55:31,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:55:31,392 INFO L85 PathProgramCache]: Analyzing trace with hash -605733079, now seen corresponding path program 39 times [2021-11-12 23:55:31,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:55:31,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682565308] [2021-11-12 23:55:31,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:55:31,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:55:31,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:55:43,289 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 36 proven. 489 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:55:43,289 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:55:43,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682565308] [2021-11-12 23:55:43,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682565308] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:55:43,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765187522] [2021-11-12 23:55:43,290 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:55:43,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:55:43,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:55:43,291 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:55:43,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c6c07d-9970-4e90-a22f-82c6489ccd15/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-11-12 23:55:43,379 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:55:43,380 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:55:43,384 WARN L261 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 259 conjunts are in the unsatisfiable core [2021-11-12 23:55:43,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:55:50,685 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 524 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:55:50,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:56:11,032 WARN L227 SmtUtils]: Spent 14.05s on a formula simplification. DAG size of input: 1584 DAG size of output: 856 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-12 23:56:11,034 INFO L354 Elim1Store]: treesize reduction 3447, result has 38.3 percent of original size [2021-11-12 23:56:11,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 28 select indices, 28 select index equivalence classes, 0 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 378 case distinctions, treesize of input 240 treesize of output 2176