./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-multidimensional/max-2-u.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_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/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_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/max-2-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/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_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/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 d56d1653edfb1a7b1c72e82d390b1b74d1df9114797a2f1426eb2285f6c4408f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:31:09,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:31:09,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:31:09,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:31:09,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:31:09,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:31:09,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:31:09,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:31:09,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:31:09,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:31:09,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:31:09,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:31:09,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:31:09,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:31:09,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:31:09,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:31:09,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:31:09,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:31:09,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:31:09,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:31:09,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:31:09,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:31:09,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:31:09,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:31:09,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:31:09,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:31:09,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:31:09,327 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:31:09,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:31:09,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:31:09,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:31:09,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:31:09,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:31:09,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:31:09,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:31:09,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:31:09,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:31:09,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:31:09,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:31:09,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:31:09,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:31:09,342 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:31:09,393 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:31:09,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:31:09,395 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:31:09,395 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:31:09,395 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:31:09,396 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:31:09,396 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:31:09,396 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:31:09,396 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:31:09,396 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:31:09,398 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:31:09,398 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:31:09,398 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:31:09,398 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:31:09,399 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:31:09,399 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:31:09,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:31:09,400 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:31:09,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:31:09,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:31:09,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:31:09,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:31:09,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:31:09,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:31:09,401 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:31:09,401 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:31:09,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:31:09,402 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:31:09,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:31:09,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:31:09,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:31:09,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:31:09,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:31:09,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:31:09,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:31:09,405 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:31:09,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:31:09,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:31:09,406 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:31:09,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:31:09,406 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_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d56d1653edfb1a7b1c72e82d390b1b74d1df9114797a2f1426eb2285f6c4408f [2021-11-12 23:31:09,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:31:09,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:31:09,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:31:09,743 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:31:09,744 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:31:09,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/array-multidimensional/max-2-u.c [2021-11-12 23:31:09,826 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/data/f363942c3/e5feb232d656413098d786d7559fe9bf/FLAGda764514e [2021-11-12 23:31:10,286 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:31:10,287 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/sv-benchmarks/c/array-multidimensional/max-2-u.c [2021-11-12 23:31:10,294 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/data/f363942c3/e5feb232d656413098d786d7559fe9bf/FLAGda764514e [2021-11-12 23:31:10,677 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/data/f363942c3/e5feb232d656413098d786d7559fe9bf [2021-11-12 23:31:10,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:31:10,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:31:10,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:31:10,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:31:10,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:31:10,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:31:10" (1/1) ... [2021-11-12 23:31:10,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f062be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:31:10, skipping insertion in model container [2021-11-12 23:31:10,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:31:10" (1/1) ... [2021-11-12 23:31:10,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:31:10,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:31:10,880 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_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/sv-benchmarks/c/array-multidimensional/max-2-u.c[319,332] [2021-11-12 23:31:10,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:31:10,929 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:31:10,944 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_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/sv-benchmarks/c/array-multidimensional/max-2-u.c[319,332] [2021-11-12 23:31:10,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:31:10,986 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:31:10,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:31:10 WrapperNode [2021-11-12 23:31:10,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:31:10,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:31:10,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:31:10,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:31:10,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:31:10" (1/1) ... [2021-11-12 23:31:11,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:31:10" (1/1) ... [2021-11-12 23:31:11,035 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:31:11,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:31:11,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:31:11,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:31:11,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:31:10" (1/1) ... [2021-11-12 23:31:11,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:31:10" (1/1) ... [2021-11-12 23:31:11,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:31:10" (1/1) ... [2021-11-12 23:31:11,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:31:10" (1/1) ... [2021-11-12 23:31:11,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:31:10" (1/1) ... [2021-11-12 23:31:11,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:31:10" (1/1) ... [2021-11-12 23:31:11,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:31:10" (1/1) ... [2021-11-12 23:31:11,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:31:11,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:31:11,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:31:11,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:31:11,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:31:10" (1/1) ... [2021-11-12 23:31:11,106 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:31:11,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:31:11,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:31:11,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:31:11,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:31:11,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:31:11,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 23:31:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:31:11,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:31:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 23:31:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:31:11,458 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:31:11,459 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-12 23:31:11,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:31:11 BoogieIcfgContainer [2021-11-12 23:31:11,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:31:11,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:31:11,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:31:11,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:31:11,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:31:10" (1/3) ... [2021-11-12 23:31:11,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78bbcdcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:31:11, skipping insertion in model container [2021-11-12 23:31:11,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:31:10" (2/3) ... [2021-11-12 23:31:11,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78bbcdcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:31:11, skipping insertion in model container [2021-11-12 23:31:11,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:31:11" (3/3) ... [2021-11-12 23:31:11,470 INFO L111 eAbstractionObserver]: Analyzing ICFG max-2-u.c [2021-11-12 23:31:11,476 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:31:11,476 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:31:11,523 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:31:11,531 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 23:31:11,531 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:31:11,545 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.8) internal successors, (18), 11 states have internal predecessors, (18), 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 23:31:11,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-12 23:31:11,550 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:31:11,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:31:11,552 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:31:11,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:31:11,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1954460599, now seen corresponding path program 1 times [2021-11-12 23:31:11,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:31:11,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998318205] [2021-11-12 23:31:11,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:11,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:31:11,634 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:31:11,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1342928297] [2021-11-12 23:31:11,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:11,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:31:11,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:31:11,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:31:11,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-12 23:31:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:31:11,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:31:11,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:31:11,799 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 23:31:11,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:31:11,829 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 23:31:11,830 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:31:11,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998318205] [2021-11-12 23:31:11,830 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:31:11,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342928297] [2021-11-12 23:31:11,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342928297] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:31:11,832 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:31:11,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-12 23:31:11,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367023790] [2021-11-12 23:31:11,835 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:31:11,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:31:11,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:31:11,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:31:11,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:31:11,893 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.8) internal successors, (18), 11 states have internal predecessors, (18), 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 4 states, 4 states have (on average 2.25) 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 23:31:11,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:31:11,991 INFO L93 Difference]: Finished difference Result 24 states and 37 transitions. [2021-11-12 23:31:11,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:31:11,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) 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 7 [2021-11-12 23:31:11,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:31:12,001 INFO L225 Difference]: With dead ends: 24 [2021-11-12 23:31:12,002 INFO L226 Difference]: Without dead ends: 14 [2021-11-12 23:31:12,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 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 23:31:12,008 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.05ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.15ms IncrementalHoareTripleChecker+Time [2021-11-12 23:31:12,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 15 Invalid, 34 Unknown, 0 Unchecked, 1.05ms Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 66.15ms Time] [2021-11-12 23:31:12,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-12 23:31:12,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-12 23:31:12,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 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 23:31:12,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 20 transitions. [2021-11-12 23:31:12,041 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 20 transitions. Word has length 7 [2021-11-12 23:31:12,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:31:12,041 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 20 transitions. [2021-11-12 23:31:12,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) 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 23:31:12,042 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 20 transitions. [2021-11-12 23:31:12,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 23:31:12,042 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:31:12,043 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:31:12,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:31:12,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-12 23:31:12,263 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:31:12,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:31:12,264 INFO L85 PathProgramCache]: Analyzing trace with hash 129009223, now seen corresponding path program 1 times [2021-11-12 23:31:12,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:31:12,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301629621] [2021-11-12 23:31:12,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:12,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:31:12,272 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:31:12,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2043403111] [2021-11-12 23:31:12,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:12,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:31:12,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:31:12,283 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:31:12,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-12 23:31:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:31:12,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:31:12,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:31:12,401 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:31:12,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:31:12,508 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:31:12,508 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:31:12,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301629621] [2021-11-12 23:31:12,509 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:31:12,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043403111] [2021-11-12 23:31:12,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043403111] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:31:12,509 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:31:12,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 23:31:12,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034824167] [2021-11-12 23:31:12,510 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:31:12,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:31:12,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:31:12,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:31:12,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:31:12,524 INFO L87 Difference]: Start difference. First operand 14 states and 20 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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 23:31:12,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:31:12,636 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2021-11-12 23:31:12,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:31:12,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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 11 [2021-11-12 23:31:12,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:31:12,637 INFO L225 Difference]: With dead ends: 39 [2021-11-12 23:31:12,637 INFO L226 Difference]: Without dead ends: 28 [2021-11-12 23:31:12,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:31:12,640 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 52 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.14ms SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.39ms IncrementalHoareTripleChecker+Time [2021-11-12 23:31:12,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 7 Invalid, 64 Unknown, 0 Unchecked, 2.14ms Time], IncrementalHoareTripleChecker [42 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 87.39ms Time] [2021-11-12 23:31:12,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-12 23:31:12,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2021-11-12 23:31:12,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 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 23:31:12,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2021-11-12 23:31:12,649 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 11 [2021-11-12 23:31:12,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:31:12,650 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-11-12 23:31:12,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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 23:31:12,650 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2021-11-12 23:31:12,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-12 23:31:12,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:31:12,658 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:31:12,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:31:12,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-12 23:31:12,863 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:31:12,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:31:12,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1782883897, now seen corresponding path program 1 times [2021-11-12 23:31:12,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:31:12,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963357146] [2021-11-12 23:31:12,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:12,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:31:12,871 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:31:12,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [502325621] [2021-11-12 23:31:12,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:12,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:31:12,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:31:12,873 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:31:12,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-12 23:31:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:31:12,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:31:12,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:31:13,016 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:31:13,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:31:13,100 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:31:13,102 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:31:13,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963357146] [2021-11-12 23:31:13,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:31:13,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502325621] [2021-11-12 23:31:13,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502325621] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:31:13,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1754134991] [2021-11-12 23:31:13,133 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-12 23:31:13,134 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:31:13,137 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:31:13,143 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:31:13,144 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:31:13,176 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,181 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:13,182 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,182 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:31:13,186 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:13,187 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,188 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-12 23:31:13,191 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:31:13,223 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_13|], 36=[|v_#valid_28|]} [2021-11-12 23:31:13,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 25 [2021-11-12 23:31:13,271 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,272 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:31:13,274 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,275 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:31:13,275 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:13,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:13,351 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-11-12 23:31:13,405 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,409 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:31:13,410 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,412 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:31:13,412 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:13,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:13,471 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-12 23:31:13,484 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:13,484 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:165, output treesize:127 [2021-11-12 23:31:13,501 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,507 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:31:13,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,537 INFO L185 QuantifierPusher]: treesize reduction 4, result has 97.0 percent of original size 130 [2021-11-12 23:31:13,550 INFO L180 QuantifierPusher]: treesize reduction 4, result has 97.2 percent of original size [2021-11-12 23:31:13,555 INFO L185 QuantifierPusher]: treesize reduction 132, result has 0.8 percent of original size 1 [2021-11-12 23:31:13,577 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,598 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:13,599 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,602 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:13,606 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 23:31:13,608 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:31:13,608 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:13,612 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,614 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:13,615 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,619 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:13,626 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:31:13,628 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:13,629 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:31:13,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:31:13,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:13,671 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 38 treesize of output 40 [2021-11-12 23:31:13,672 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:31:13,676 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,676 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:31:13,677 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:13,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:13,703 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,707 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,713 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-12 23:31:13,714 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:13,714 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:166, output treesize:173 [2021-11-12 23:31:13,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:13,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:13,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:13,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:13,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:13,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:13,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:13,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:13,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:13,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:13,930 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-11-12 23:31:13,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,950 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:13,951 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,959 INFO L185 QuantifierPusher]: treesize reduction 29, result has 49.1 percent of original size 28 [2021-11-12 23:31:13,969 INFO L185 QuantifierPusher]: treesize reduction 30, result has 77.4 percent of original size 103 [2021-11-12 23:31:13,975 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,985 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:13,985 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,986 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:13,986 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,987 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:31:13,988 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:31:13,988 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:13,989 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:13,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:14,009 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:31:14,028 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 21 treesize of output 17 [2021-11-12 23:31:14,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:14,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:14,029 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:14,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:14,030 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:14,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:14,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2021-11-12 23:31:14,050 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:14,051 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:31:14,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:14,052 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:31:14,052 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:14,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,060 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:14,073 INFO L180 QuantifierPusher]: treesize reduction 54, result has 58.8 percent of original size [2021-11-12 23:31:14,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:31:14,083 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:14,087 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:271, output treesize:87 [2021-11-12 23:31:14,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,224 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:31:14,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:14,230 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:14,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:14,241 INFO L180 QuantifierPusher]: treesize reduction 48, result has 63.4 percent of original size [2021-11-12 23:31:14,252 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:14,253 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:14,254 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:14,254 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:14,255 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:31:14,255 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:31:14,256 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:14,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:14,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:14,260 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-12 23:31:14,268 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 21 treesize of output 17 [2021-11-12 23:31:14,268 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:14,269 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:14,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:14,270 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:14,270 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:14,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,273 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:14,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:14,280 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:31:14,281 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:14,281 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:80, output treesize:87 [2021-11-12 23:31:14,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,352 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:31:14,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:14,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:14,492 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:14,494 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:14,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:14,515 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:14,525 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:14,532 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:14,533 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:14,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 23:31:14,547 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:14,550 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:14,560 INFO L185 QuantifierPusher]: treesize reduction 32, result has 79.5 percent of original size 124 [2021-11-12 23:31:14,582 INFO L185 QuantifierPusher]: treesize reduction 138, result has 56.6 percent of original size 180 [2021-11-12 23:31:14,605 INFO L185 QuantifierPusher]: treesize reduction 138, result has 56.6 percent of original size 180 [2021-11-12 23:31:14,634 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:14,639 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:14,647 INFO L185 QuantifierPusher]: treesize reduction 137, result has 22.6 percent of original size 40 [2021-11-12 23:31:14,653 INFO L185 QuantifierPusher]: treesize reduction 138, result has 27.7 percent of original size 53 [2021-11-12 23:31:14,663 INFO L180 QuantifierPusher]: treesize reduction 138, result has 31.7 percent of original size [2021-11-12 23:31:14,668 INFO L185 QuantifierPusher]: treesize reduction 56, result has 1.8 percent of original size 1 [2021-11-12 23:31:14,669 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:31:15,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1754134991] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:31:15,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:31:15,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 12 [2021-11-12 23:31:15,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373522716] [2021-11-12 23:31:15,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:31:15,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:31:15,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:31:15,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:31:15,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:31:15,376 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand has 5 states, 5 states have (on average 2.0) 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 23:31:15,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:31:15,479 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2021-11-12 23:31:15,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:31:15,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) 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 15 [2021-11-12 23:31:15,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:31:15,481 INFO L225 Difference]: With dead ends: 37 [2021-11-12 23:31:15,481 INFO L226 Difference]: Without dead ends: 27 [2021-11-12 23:31:15,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:31:15,482 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.29ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.08ms IncrementalHoareTripleChecker+Time [2021-11-12 23:31:15,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 9 Invalid, 52 Unknown, 0 Unchecked, 1.29ms Time], IncrementalHoareTripleChecker [13 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 86.08ms Time] [2021-11-12 23:31:15,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-12 23:31:15,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2021-11-12 23:31:15,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 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 23:31:15,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2021-11-12 23:31:15,496 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 15 [2021-11-12 23:31:15,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:31:15,496 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2021-11-12 23:31:15,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) 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 23:31:15,497 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2021-11-12 23:31:15,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-12 23:31:15,498 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:31:15,498 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:31:15,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-12 23:31:15,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:31:15,711 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:31:15,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:31:15,711 INFO L85 PathProgramCache]: Analyzing trace with hash -544559877, now seen corresponding path program 1 times [2021-11-12 23:31:15,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:31:15,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961276516] [2021-11-12 23:31:15,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:15,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:31:15,720 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:31:15,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1238666427] [2021-11-12 23:31:15,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:15,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:31:15,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:31:15,721 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:31:15,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-12 23:31:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:31:15,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:31:15,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:31:15,842 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-12 23:31:15,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:31:15,912 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-12 23:31:15,912 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:31:15,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961276516] [2021-11-12 23:31:15,912 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:31:15,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238666427] [2021-11-12 23:31:15,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238666427] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:31:15,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [929635008] [2021-11-12 23:31:15,915 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:31:15,915 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:31:15,916 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:31:15,916 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:31:15,916 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:31:15,924 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:15,925 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:15,926 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:15,926 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-12 23:31:15,927 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:15,927 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:15,927 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:31:15,929 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:31:15,933 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_14|], 36=[|v_#valid_29|]} [2021-11-12 23:31:15,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 25 [2021-11-12 23:31:15,952 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:15,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:31:15,954 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:15,954 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:31:15,955 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:15,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:15,962 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:15,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:15,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-11-12 23:31:15,992 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:15,995 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:31:15,996 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:15,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:31:15,997 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:15,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,004 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,006 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,008 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-12 23:31:16,008 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:16,008 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:165, output treesize:127 [2021-11-12 23:31:16,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,016 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:31:16,022 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,026 INFO L185 QuantifierPusher]: treesize reduction 4, result has 97.0 percent of original size 130 [2021-11-12 23:31:16,030 INFO L180 QuantifierPusher]: treesize reduction 4, result has 97.2 percent of original size [2021-11-12 23:31:16,042 INFO L185 QuantifierPusher]: treesize reduction 132, result has 0.8 percent of original size 1 [2021-11-12 23:31:16,046 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,052 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:16,053 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,054 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:16,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,055 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:16,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:31:16,057 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:16,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,058 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:16,059 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 23:31:16,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:31:16,061 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:16,061 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,062 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:31:16,065 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:31:16,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:16,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:16,081 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 38 treesize of output 40 [2021-11-12 23:31:16,082 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,084 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:31:16,084 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,085 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:31:16,085 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:16,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,095 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,098 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-12 23:31:16,102 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:16,102 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:166, output treesize:173 [2021-11-12 23:31:16,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,279 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,282 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-11-12 23:31:16,286 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,289 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:16,291 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,293 INFO L185 QuantifierPusher]: treesize reduction 29, result has 49.1 percent of original size 28 [2021-11-12 23:31:16,298 INFO L185 QuantifierPusher]: treesize reduction 30, result has 77.4 percent of original size 103 [2021-11-12 23:31:16,301 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,306 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:16,306 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,307 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:16,307 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,307 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:31:16,308 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:31:16,308 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:16,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:16,312 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:31:16,324 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 21 treesize of output 17 [2021-11-12 23:31:16,324 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,325 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:16,325 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,326 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:16,326 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:16,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:16,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2021-11-12 23:31:16,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:31:16,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:31:16,336 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:16,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,346 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,349 INFO L180 QuantifierPusher]: treesize reduction 54, result has 58.8 percent of original size [2021-11-12 23:31:16,351 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:31:16,351 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:16,351 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:271, output treesize:87 [2021-11-12 23:31:16,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,471 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:31:16,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:16,474 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:16,479 INFO L180 QuantifierPusher]: treesize reduction 48, result has 63.4 percent of original size [2021-11-12 23:31:16,482 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:16,483 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,483 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:16,484 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,484 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:31:16,485 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:31:16,485 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:16,485 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,486 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:16,487 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-12 23:31:16,493 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 21 treesize of output 17 [2021-11-12 23:31:16,494 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:16,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,495 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:16,495 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:16,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,499 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,500 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:31:16,502 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:16,503 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:80, output treesize:87 [2021-11-12 23:31:16,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,561 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:31:16,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:16,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,684 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,685 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:16,689 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,697 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:16,703 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,712 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:16,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,720 INFO L185 QuantifierPusher]: treesize reduction 74, result has 47.5 percent of original size 67 [2021-11-12 23:31:16,731 INFO L185 QuantifierPusher]: treesize reduction 183, result has 49.6 percent of original size 180 [2021-11-12 23:31:16,742 INFO L185 QuantifierPusher]: treesize reduction 183, result has 49.6 percent of original size 180 [2021-11-12 23:31:16,755 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:16,758 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,763 INFO L185 QuantifierPusher]: treesize reduction 137, result has 22.6 percent of original size 40 [2021-11-12 23:31:16,767 INFO L185 QuantifierPusher]: treesize reduction 138, result has 27.7 percent of original size 53 [2021-11-12 23:31:16,772 INFO L180 QuantifierPusher]: treesize reduction 138, result has 30.3 percent of original size [2021-11-12 23:31:16,774 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-12 23:31:16,777 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,780 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-12 23:31:16,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,813 INFO L180 QuantifierPusher]: treesize reduction 54, result has 67.7 percent of original size [2021-11-12 23:31:16,819 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.2 percent of original size 68 [2021-11-12 23:31:16,824 INFO L180 QuantifierPusher]: treesize reduction 55, result has 50.0 percent of original size [2021-11-12 23:31:16,825 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:16,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,852 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:31:16,854 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:16,857 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,862 INFO L185 QuantifierPusher]: treesize reduction 21, result has 77.2 percent of original size 71 [2021-11-12 23:31:16,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,884 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:31:16,890 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:31:16,895 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:31:16,897 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:31:16,902 INFO L180 QuantifierPusher]: treesize reduction 49, result has 53.3 percent of original size [2021-11-12 23:31:16,904 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:31:16,907 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,908 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:16,915 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:31:16,917 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:16,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,925 INFO L185 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-11-12 23:31:16,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:16,956 INFO L185 QuantifierPusher]: treesize reduction 23, result has 86.9 percent of original size 152 [2021-11-12 23:31:16,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:16,994 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:31:16,999 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:31:17,001 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:31:17,917 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:31:17,917 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:31:17,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-11-12 23:31:17,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509577241] [2021-11-12 23:31:17,918 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-12 23:31:17,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:31:17,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:31:17,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:31:17,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=148, Unknown=0, NotChecked=0, Total=240 [2021-11-12 23:31:17,919 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 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 23:31:18,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:31:18,077 INFO L93 Difference]: Finished difference Result 80 states and 108 transitions. [2021-11-12 23:31:18,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 23:31:18,078 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 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 23:31:18,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:31:18,079 INFO L225 Difference]: With dead ends: 80 [2021-11-12 23:31:18,079 INFO L226 Difference]: Without dead ends: 60 [2021-11-12 23:31:18,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342 [2021-11-12 23:31:18,080 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 68 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.06ms SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97.45ms IncrementalHoareTripleChecker+Time [2021-11-12 23:31:18,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 19 Invalid, 107 Unknown, 0 Unchecked, 2.06ms Time], IncrementalHoareTripleChecker [63 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 97.45ms Time] [2021-11-12 23:31:18,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-12 23:31:18,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 49. [2021-11-12 23:31:18,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.25) internal successors, (60), 48 states have internal predecessors, (60), 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 23:31:18,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2021-11-12 23:31:18,097 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 19 [2021-11-12 23:31:18,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:31:18,098 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2021-11-12 23:31:18,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 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 23:31:18,098 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2021-11-12 23:31:18,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-12 23:31:18,099 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:31:18,099 INFO L514 BasicCegarLoop]: trace histogram [12, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:31:18,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:31:18,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-11-12 23:31:18,319 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:31:18,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:31:18,319 INFO L85 PathProgramCache]: Analyzing trace with hash -879304517, now seen corresponding path program 2 times [2021-11-12 23:31:18,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:31:18,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286943127] [2021-11-12 23:31:18,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:18,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:31:18,325 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:31:18,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [956289552] [2021-11-12 23:31:18,326 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:31:18,326 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:31:18,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:31:18,328 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:31:18,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-12 23:31:18,374 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-12 23:31:18,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:31:18,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:31:18,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:31:18,483 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-12 23:31:18,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:31:18,560 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-12 23:31:18,560 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:31:18,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286943127] [2021-11-12 23:31:18,560 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:31:18,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956289552] [2021-11-12 23:31:18,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956289552] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:31:18,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1555747942] [2021-11-12 23:31:18,565 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:31:18,565 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:31:18,565 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:31:18,565 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:31:18,565 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:31:18,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,576 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:18,581 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:31:18,583 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:18,583 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,584 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-12 23:31:18,586 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:31:18,589 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_15|], 36=[|v_#valid_30|]} [2021-11-12 23:31:18,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 25 [2021-11-12 23:31:18,609 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,609 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:31:18,610 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:31:18,611 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:18,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:18,618 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-11-12 23:31:18,647 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:31:18,650 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:31:18,651 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:18,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:18,656 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,658 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-12 23:31:18,660 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:18,661 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:165, output treesize:127 [2021-11-12 23:31:18,669 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:31:18,678 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,683 INFO L185 QuantifierPusher]: treesize reduction 4, result has 97.0 percent of original size 130 [2021-11-12 23:31:18,687 INFO L180 QuantifierPusher]: treesize reduction 4, result has 97.2 percent of original size [2021-11-12 23:31:18,690 INFO L185 QuantifierPusher]: treesize reduction 132, result has 0.8 percent of original size 1 [2021-11-12 23:31:18,694 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,698 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:18,700 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,700 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:18,701 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:31:18,702 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:31:18,702 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:18,703 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,705 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:18,706 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:31:18,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-12 23:31:18,707 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:18,708 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,708 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-12 23:31:18,712 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size 157 [2021-11-12 23:31:18,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:18,726 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 34 treesize of output 36 [2021-11-12 23:31:18,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:18,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:18,731 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:18,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:18,737 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,740 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:31:18,742 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-11-12 23:31:18,743 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:18,743 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:158, output treesize:158 [2021-11-12 23:31:18,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:18,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:18,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:18,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:18,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:18,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:18,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:18,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:18,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:18,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:18,892 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,896 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-11-12 23:31:18,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,907 INFO L185 QuantifierPusher]: treesize reduction 135, result has 0.7 percent of original size 1 [2021-11-12 23:31:18,911 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,920 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:18,921 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,922 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:18,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,922 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:31:18,923 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:31:18,923 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:18,924 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,924 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:18,927 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-12 23:31:18,939 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 21 treesize of output 17 [2021-11-12 23:31:18,939 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,940 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:18,940 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,941 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:18,941 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:18,952 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 21 treesize of output 17 [2021-11-12 23:31:18,952 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,952 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:18,953 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:18,953 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:18,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:18,970 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:18,976 INFO L180 QuantifierPusher]: treesize reduction 112, result has 58.4 percent of original size [2021-11-12 23:31:18,978 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-12 23:31:18,980 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:31:18,980 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:276, output treesize:178 [2021-11-12 23:31:18,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:18,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:18,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:18,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:18,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:18,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:18,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,072 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:31:19,074 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:31:19,076 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,077 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:31:19,081 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.2 percent of original size [2021-11-12 23:31:19,083 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:19,084 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,084 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:19,085 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,085 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:31:19,085 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:31:19,086 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:19,087 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:19,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-12 23:31:19,096 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 21 treesize of output 17 [2021-11-12 23:31:19,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:19,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,098 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:19,098 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:19,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,101 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,102 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-12 23:31:19,104 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:19,104 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:83, output treesize:90 [2021-11-12 23:31:19,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,174 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:31:19,176 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:19,177 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:19,182 INFO L180 QuantifierPusher]: treesize reduction 48, result has 63.4 percent of original size [2021-11-12 23:31:19,187 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:19,187 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,188 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:19,188 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,189 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:31:19,189 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:31:19,190 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:19,190 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,190 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:19,191 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-12 23:31:19,198 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 21 treesize of output 17 [2021-11-12 23:31:19,198 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,198 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:19,199 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:19,199 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:19,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,202 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,203 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,205 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:31:19,205 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:19,205 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:80, output treesize:87 [2021-11-12 23:31:19,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,261 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:31:19,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:19,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,348 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,349 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:19,352 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,358 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:19,364 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,369 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:19,371 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,378 INFO L185 QuantifierPusher]: treesize reduction 32, result has 79.5 percent of original size 124 [2021-11-12 23:31:19,385 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:19,385 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 23:31:19,401 INFO L185 QuantifierPusher]: treesize reduction 138, result has 56.6 percent of original size 180 [2021-11-12 23:31:19,416 INFO L185 QuantifierPusher]: treesize reduction 138, result has 56.6 percent of original size 180 [2021-11-12 23:31:19,431 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:19,434 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,439 INFO L185 QuantifierPusher]: treesize reduction 137, result has 22.6 percent of original size 40 [2021-11-12 23:31:19,442 INFO L185 QuantifierPusher]: treesize reduction 138, result has 27.7 percent of original size 53 [2021-11-12 23:31:19,448 INFO L180 QuantifierPusher]: treesize reduction 138, result has 30.3 percent of original size [2021-11-12 23:31:19,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-12 23:31:19,452 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,456 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.3 percent of original size 107 [2021-11-12 23:31:19,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,480 INFO L180 QuantifierPusher]: treesize reduction 54, result has 67.7 percent of original size [2021-11-12 23:31:19,486 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.2 percent of original size 68 [2021-11-12 23:31:19,491 INFO L180 QuantifierPusher]: treesize reduction 55, result has 50.0 percent of original size [2021-11-12 23:31:19,492 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:31:19,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,517 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:31:19,519 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:19,526 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,532 INFO L185 QuantifierPusher]: treesize reduction 21, result has 77.2 percent of original size 71 [2021-11-12 23:31:19,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,552 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:31:19,556 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:31:19,561 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:31:19,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:31:19,567 INFO L180 QuantifierPusher]: treesize reduction 49, result has 53.3 percent of original size [2021-11-12 23:31:19,569 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:31:19,572 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:19,581 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:31:19,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:19,584 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:19,590 INFO L185 QuantifierPusher]: treesize reduction 21, result has 77.2 percent of original size 71 [2021-11-12 23:31:19,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:19,630 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:31:19,635 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:31:19,638 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:31:20,524 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:31:20,524 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:31:20,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-11-12 23:31:20,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38361311] [2021-11-12 23:31:20,525 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-12 23:31:20,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:31:20,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:31:20,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:31:20,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:31:20,526 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 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 23:31:20,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:31:20,676 INFO L93 Difference]: Finished difference Result 185 states and 231 transitions. [2021-11-12 23:31:20,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:31:20,677 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 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 23:31:20,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:31:20,680 INFO L225 Difference]: With dead ends: 185 [2021-11-12 23:31:20,682 INFO L226 Difference]: Without dead ends: 163 [2021-11-12 23:31:20,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=93, Invalid=147, Unknown=0, NotChecked=0, Total=240 [2021-11-12 23:31:20,685 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 81 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.96ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.14ms IncrementalHoareTripleChecker+Time [2021-11-12 23:31:20,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 16 Invalid, 74 Unknown, 0 Unchecked, 1.96ms Time], IncrementalHoareTripleChecker [30 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 72.14ms Time] [2021-11-12 23:31:20,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-11-12 23:31:20,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 73. [2021-11-12 23:31:20,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.2083333333333333) internal successors, (87), 72 states have internal predecessors, (87), 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 23:31:20,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 87 transitions. [2021-11-12 23:31:20,731 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 87 transitions. Word has length 31 [2021-11-12 23:31:20,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:31:20,731 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 87 transitions. [2021-11-12 23:31:20,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 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 23:31:20,731 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 87 transitions. [2021-11-12 23:31:20,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-12 23:31:20,735 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:31:20,736 INFO L514 BasicCegarLoop]: trace histogram [24, 12, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:31:20,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:31:20,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable123 [2021-11-12 23:31:20,959 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:31:20,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:31:20,959 INFO L85 PathProgramCache]: Analyzing trace with hash -39221097, now seen corresponding path program 3 times [2021-11-12 23:31:20,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:31:20,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052548730] [2021-11-12 23:31:20,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:20,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:31:20,966 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:31:20,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [18341859] [2021-11-12 23:31:20,967 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:31:20,967 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:31:20,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:31:20,968 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:31:20,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-12 23:31:21,037 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:31:21,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:31:21,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 23:31:21,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:31:21,389 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 15 proven. 310 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2021-11-12 23:31:21,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:31:21,652 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 15 proven. 310 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2021-11-12 23:31:21,652 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:31:21,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052548730] [2021-11-12 23:31:21,652 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:31:21,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18341859] [2021-11-12 23:31:21,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18341859] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:31:21,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1565289883] [2021-11-12 23:31:21,655 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:31:21,655 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:31:21,655 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:31:21,655 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:31:21,656 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:31:21,661 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,662 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:21,662 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,663 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:31:21,663 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:21,664 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,664 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-12 23:31:21,666 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:31:21,669 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_16|], 36=[|v_#valid_31|]} [2021-11-12 23:31:21,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 25 [2021-11-12 23:31:21,692 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,692 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:31:21,693 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,693 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:31:21,694 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:21,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:21,699 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-11-12 23:31:21,726 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:31:21,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:31:21,730 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:21,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:21,734 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,736 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-12 23:31:21,737 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:21,738 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:165, output treesize:127 [2021-11-12 23:31:21,741 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,744 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:31:21,748 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-12 23:31:21,754 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.5 percent of original size [2021-11-12 23:31:21,756 INFO L185 QuantifierPusher]: treesize reduction 132, result has 0.8 percent of original size 1 [2021-11-12 23:31:21,759 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,762 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:21,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,763 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:21,763 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 23:31:21,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:31:21,764 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:21,765 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,765 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:21,766 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,766 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:21,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:31:21,767 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:21,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,768 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:31:21,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:31:21,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,782 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 38 treesize of output 40 [2021-11-12 23:31:21,782 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,783 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:31:21,784 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,784 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:31:21,785 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:21,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:21,790 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,792 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-12 23:31:21,795 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:21,795 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:166, output treesize:173 [2021-11-12 23:31:21,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:21,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:21,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:21,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:21,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:21,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:21,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:21,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:21,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:21,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:21,897 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,900 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-11-12 23:31:21,902 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,905 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:21,906 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,908 INFO L185 QuantifierPusher]: treesize reduction 29, result has 49.1 percent of original size 28 [2021-11-12 23:31:21,913 INFO L185 QuantifierPusher]: treesize reduction 30, result has 77.4 percent of original size 103 [2021-11-12 23:31:21,916 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,927 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:21,928 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,928 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:21,929 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,929 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:31:21,929 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:31:21,930 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:21,930 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,931 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:21,933 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:31:21,944 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 21 treesize of output 17 [2021-11-12 23:31:21,945 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,945 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:21,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:21,946 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:21,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:21,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2021-11-12 23:31:21,954 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:31:21,955 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:31:21,956 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:21,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:21,962 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:21,965 INFO L180 QuantifierPusher]: treesize reduction 54, result has 58.8 percent of original size [2021-11-12 23:31:21,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:31:21,968 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:21,968 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:271, output treesize:87 [2021-11-12 23:31:21,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:21,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:21,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:21,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:21,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:21,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:21,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,077 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:31:22,078 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:22,080 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:22,082 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:22,085 INFO L180 QuantifierPusher]: treesize reduction 48, result has 63.4 percent of original size [2021-11-12 23:31:22,091 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:22,092 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:22,093 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:22,093 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:22,094 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:31:22,094 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:31:22,094 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:22,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:22,095 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:22,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-12 23:31:22,103 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 21 treesize of output 17 [2021-11-12 23:31:22,103 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:22,104 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:22,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:22,104 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:22,105 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:22,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,108 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:22,109 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:22,111 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:31:22,111 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:22,112 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:80, output treesize:87 [2021-11-12 23:31:22,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,160 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:31:22,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:22,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,252 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:22,253 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:22,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:22,263 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:22,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:22,274 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:22,276 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:22,281 INFO L185 QuantifierPusher]: treesize reduction 32, result has 79.5 percent of original size 124 [2021-11-12 23:31:22,284 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:22,285 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:22,287 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 23:31:22,303 INFO L185 QuantifierPusher]: treesize reduction 138, result has 56.6 percent of original size 180 [2021-11-12 23:31:22,319 INFO L185 QuantifierPusher]: treesize reduction 138, result has 56.6 percent of original size 180 [2021-11-12 23:31:22,337 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:22,340 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:22,348 INFO L185 QuantifierPusher]: treesize reduction 137, result has 22.6 percent of original size 40 [2021-11-12 23:31:22,351 INFO L185 QuantifierPusher]: treesize reduction 138, result has 27.7 percent of original size 53 [2021-11-12 23:31:22,360 INFO L180 QuantifierPusher]: treesize reduction 138, result has 30.3 percent of original size [2021-11-12 23:31:22,361 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-12 23:31:22,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:22,366 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.3 percent of original size 107 [2021-11-12 23:31:22,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,397 INFO L180 QuantifierPusher]: treesize reduction 54, result has 67.7 percent of original size [2021-11-12 23:31:22,401 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.2 percent of original size 68 [2021-11-12 23:31:22,405 INFO L180 QuantifierPusher]: treesize reduction 55, result has 50.0 percent of original size [2021-11-12 23:31:22,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:31:22,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,451 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:31:22,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:22,454 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:22,459 INFO L185 QuantifierPusher]: treesize reduction 21, result has 77.2 percent of original size 71 [2021-11-12 23:31:22,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,483 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:31:22,487 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:31:22,491 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:31:22,493 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:31:22,497 INFO L180 QuantifierPusher]: treesize reduction 49, result has 53.3 percent of original size [2021-11-12 23:31:22,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:31:22,501 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:22,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:22,509 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:31:22,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:22,512 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:22,532 INFO L185 QuantifierPusher]: treesize reduction 21, result has 77.2 percent of original size 71 [2021-11-12 23:31:22,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:22,552 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:31:22,556 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:31:22,559 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:31:23,526 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:31:23,527 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:31:23,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2021-11-12 23:31:23,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622416875] [2021-11-12 23:31:23,527 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-12 23:31:23,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-12 23:31:23,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:31:23,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-12 23:31:23,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=764, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:31:23,529 INFO L87 Difference]: Start difference. First operand 73 states and 87 transitions. Second operand has 26 states, 26 states have (on average 1.7692307692307692) internal successors, (46), 26 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 23:31:24,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:31:24,436 INFO L93 Difference]: Finished difference Result 289 states and 343 transitions. [2021-11-12 23:31:24,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-12 23:31:24,437 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.7692307692307692) internal successors, (46), 26 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 23:31:24,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:31:24,441 INFO L225 Difference]: With dead ends: 289 [2021-11-12 23:31:24,441 INFO L226 Difference]: Without dead ends: 267 [2021-11-12 23:31:24,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 143 SyntacticMatches, 6 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1151 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=830, Invalid=2476, Unknown=0, NotChecked=0, Total=3306 [2021-11-12 23:31:24,445 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 162 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 297.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.56ms SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 365.51ms IncrementalHoareTripleChecker+Time [2021-11-12 23:31:24,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 194 Invalid, 575 Unknown, 0 Unchecked, 5.56ms Time], IncrementalHoareTripleChecker [241 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 365.51ms Time] [2021-11-12 23:31:24,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-11-12 23:31:24,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 89. [2021-11-12 23:31:24,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 88 states have (on average 1.1931818181818181) internal successors, (105), 88 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 23:31:24,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 105 transitions. [2021-11-12 23:31:24,493 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 105 transitions. Word has length 55 [2021-11-12 23:31:24,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:31:24,493 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 105 transitions. [2021-11-12 23:31:24,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.7692307692307692) internal successors, (46), 26 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 23:31:24,494 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 105 transitions. [2021-11-12 23:31:24,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-12 23:31:24,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:31:24,495 INFO L514 BasicCegarLoop]: trace histogram [36, 12, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:31:24,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:31:24,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:31:24,715 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:31:24,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:31:24,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1343490945, now seen corresponding path program 4 times [2021-11-12 23:31:24,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:31:24,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499272237] [2021-11-12 23:31:24,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:24,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:31:24,721 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:31:24,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [401579561] [2021-11-12 23:31:24,722 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:31:24,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:31:24,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:31:24,723 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:31:24,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-12 23:31:24,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:31:24,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:31:24,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:31:25,029 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 51 proven. 21 refuted. 0 times theorem prover too weak. 904 trivial. 0 not checked. [2021-11-12 23:31:25,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:31:25,232 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 51 proven. 21 refuted. 0 times theorem prover too weak. 904 trivial. 0 not checked. [2021-11-12 23:31:25,232 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:31:25,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499272237] [2021-11-12 23:31:25,232 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:31:25,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401579561] [2021-11-12 23:31:25,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401579561] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:31:25,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1061195105] [2021-11-12 23:31:25,235 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:31:25,235 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:31:25,235 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:31:25,235 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:31:25,236 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:31:25,241 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,241 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:25,242 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,242 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:31:25,243 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:25,243 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,244 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-12 23:31:25,245 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:31:25,248 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_17|], 36=[|v_#valid_32|]} [2021-11-12 23:31:25,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 25 [2021-11-12 23:31:25,270 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,270 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:31:25,271 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:31:25,272 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:25,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,281 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-11-12 23:31:25,305 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,307 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:31:25,308 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:31:25,309 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:25,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,313 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,314 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,316 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-12 23:31:25,317 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:25,317 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:165, output treesize:127 [2021-11-12 23:31:25,321 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,323 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:31:25,329 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,331 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-12 23:31:25,334 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.5 percent of original size [2021-11-12 23:31:25,336 INFO L185 QuantifierPusher]: treesize reduction 132, result has 0.8 percent of original size 1 [2021-11-12 23:31:25,340 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,342 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:25,343 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,344 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:25,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:31:25,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-12 23:31:25,346 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:25,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,347 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:25,354 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:31:25,356 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:31:25,356 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:25,357 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,357 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-12 23:31:25,360 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size 157 [2021-11-12 23:31:25,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:25,374 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 34 treesize of output 36 [2021-11-12 23:31:25,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:25,376 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,377 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:25,377 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:25,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,382 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,384 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:31:25,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-11-12 23:31:25,387 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:25,387 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:158, output treesize:158 [2021-11-12 23:31:25,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-11-12 23:31:25,482 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,494 INFO L185 QuantifierPusher]: treesize reduction 135, result has 0.7 percent of original size 1 [2021-11-12 23:31:25,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,500 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:25,500 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,503 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:25,503 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,504 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:31:25,504 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:31:25,504 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:25,505 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,505 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:25,507 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-12 23:31:25,518 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 21 treesize of output 17 [2021-11-12 23:31:25,518 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,519 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:25,520 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:25,520 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:25,528 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 21 treesize of output 17 [2021-11-12 23:31:25,529 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,529 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:25,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:25,530 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:25,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,552 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,557 INFO L180 QuantifierPusher]: treesize reduction 112, result has 58.4 percent of original size [2021-11-12 23:31:25,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-12 23:31:25,560 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:31:25,560 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:276, output treesize:178 [2021-11-12 23:31:25,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,652 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:31:25,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:31:25,655 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,656 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:31:25,659 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.2 percent of original size [2021-11-12 23:31:25,661 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:25,661 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,662 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:25,662 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,662 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:31:25,663 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:31:25,663 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:25,663 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,664 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:25,665 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-12 23:31:25,670 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 21 treesize of output 17 [2021-11-12 23:31:25,671 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,671 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:25,671 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:25,672 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:25,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,674 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,675 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,677 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-12 23:31:25,677 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:25,677 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:83, output treesize:90 [2021-11-12 23:31:25,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,742 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:31:25,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:25,744 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,746 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:25,749 INFO L180 QuantifierPusher]: treesize reduction 48, result has 63.4 percent of original size [2021-11-12 23:31:25,751 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:25,751 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,752 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:25,752 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,753 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:31:25,753 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:31:25,753 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:25,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,754 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:25,755 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-12 23:31:25,762 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 21 treesize of output 17 [2021-11-12 23:31:25,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:25,763 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:25,764 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:25,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,766 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:31:25,769 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:25,769 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:80, output treesize:87 [2021-11-12 23:31:25,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,803 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:31:25,805 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:25,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,878 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,879 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:25,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,888 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:25,894 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,900 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:25,902 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,906 INFO L185 QuantifierPusher]: treesize reduction 74, result has 47.5 percent of original size 67 [2021-11-12 23:31:25,914 INFO L185 QuantifierPusher]: treesize reduction 183, result has 49.6 percent of original size 180 [2021-11-12 23:31:25,923 INFO L185 QuantifierPusher]: treesize reduction 183, result has 49.6 percent of original size 180 [2021-11-12 23:31:25,932 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:25,934 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,938 INFO L185 QuantifierPusher]: treesize reduction 137, result has 22.6 percent of original size 40 [2021-11-12 23:31:25,941 INFO L185 QuantifierPusher]: treesize reduction 138, result has 27.7 percent of original size 53 [2021-11-12 23:31:25,945 INFO L180 QuantifierPusher]: treesize reduction 138, result has 30.3 percent of original size [2021-11-12 23:31:25,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-12 23:31:25,948 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:25,951 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.3 percent of original size 107 [2021-11-12 23:31:25,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,977 INFO L180 QuantifierPusher]: treesize reduction 54, result has 67.7 percent of original size [2021-11-12 23:31:25,981 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.2 percent of original size 68 [2021-11-12 23:31:25,985 INFO L180 QuantifierPusher]: treesize reduction 55, result has 50.0 percent of original size [2021-11-12 23:31:25,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:31:25,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:25,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:26,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:26,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:26,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:26,009 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:31:26,010 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:26,012 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:26,016 INFO L185 QuantifierPusher]: treesize reduction 21, result has 77.2 percent of original size 71 [2021-11-12 23:31:26,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:26,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:26,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:26,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:26,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:26,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:26,034 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:31:26,038 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:31:26,042 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:31:26,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:31:26,047 INFO L180 QuantifierPusher]: treesize reduction 49, result has 53.3 percent of original size [2021-11-12 23:31:26,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:31:26,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:26,052 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:26,059 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:31:26,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:26,062 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:26,065 INFO L185 QuantifierPusher]: treesize reduction 21, result has 77.2 percent of original size 71 [2021-11-12 23:31:26,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:26,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:26,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:26,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:26,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:26,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:26,083 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:31:26,088 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:31:26,090 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:31:26,881 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:31:26,882 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:31:26,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-11-12 23:31:26,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687240440] [2021-11-12 23:31:26,882 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-12 23:31:26,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-12 23:31:26,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:31:26,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-12 23:31:26,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=336, Unknown=0, NotChecked=0, Total=552 [2021-11-12 23:31:26,884 INFO L87 Difference]: Start difference. First operand 89 states and 105 transitions. Second operand has 18 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 17 states have internal predecessors, (30), 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 23:31:27,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:31:27,238 INFO L93 Difference]: Finished difference Result 284 states and 382 transitions. [2021-11-12 23:31:27,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-12 23:31:27,239 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 17 states have internal predecessors, (30), 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 23:31:27,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:31:27,240 INFO L225 Difference]: With dead ends: 284 [2021-11-12 23:31:27,240 INFO L226 Difference]: Without dead ends: 204 [2021-11-12 23:31:27,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 181 SyntacticMatches, 8 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=363, Invalid=567, Unknown=0, NotChecked=0, Total=930 [2021-11-12 23:31:27,242 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 254 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 145.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.38ms SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 206.33ms IncrementalHoareTripleChecker+Time [2021-11-12 23:31:27,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 43 Invalid, 280 Unknown, 0 Unchecked, 2.38ms Time], IncrementalHoareTripleChecker [207 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 206.33ms Time] [2021-11-12 23:31:27,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-11-12 23:31:27,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 177. [2021-11-12 23:31:27,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 176 states have (on average 1.1420454545454546) internal successors, (201), 176 states have internal predecessors, (201), 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 23:31:27,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 201 transitions. [2021-11-12 23:31:27,280 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 201 transitions. Word has length 71 [2021-11-12 23:31:27,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:31:27,280 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 201 transitions. [2021-11-12 23:31:27,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 17 states have internal predecessors, (30), 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 23:31:27,280 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 201 transitions. [2021-11-12 23:31:27,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-12 23:31:27,282 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:31:27,283 INFO L514 BasicCegarLoop]: trace histogram [84, 28, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:31:27,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:31:27,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable271 [2021-11-12 23:31:27,497 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:31:27,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:31:27,498 INFO L85 PathProgramCache]: Analyzing trace with hash 30052223, now seen corresponding path program 5 times [2021-11-12 23:31:27,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:31:27,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484043195] [2021-11-12 23:31:27,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:27,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:31:27,506 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:31:27,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [242776207] [2021-11-12 23:31:27,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:31:27,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:31:27,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:31:27,508 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:31:27,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-12 23:31:33,975 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2021-11-12 23:31:33,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:31:33,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-12 23:31:34,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:31:34,431 INFO L134 CoverageAnalysis]: Checked inductivity of 4464 backedges. 227 proven. 105 refuted. 0 times theorem prover too weak. 4132 trivial. 0 not checked. [2021-11-12 23:31:34,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:31:35,009 INFO L134 CoverageAnalysis]: Checked inductivity of 4464 backedges. 2 proven. 330 refuted. 0 times theorem prover too weak. 4132 trivial. 0 not checked. [2021-11-12 23:31:35,009 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:31:35,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484043195] [2021-11-12 23:31:35,010 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:31:35,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242776207] [2021-11-12 23:31:35,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242776207] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:31:35,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [99132927] [2021-11-12 23:31:35,013 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:31:35,013 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:31:35,013 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:31:35,013 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:31:35,014 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:31:35,021 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,022 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:35,023 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,023 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-12 23:31:35,023 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:35,024 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,024 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:31:35,026 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:31:35,028 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_18|], 36=[|v_#valid_33|]} [2021-11-12 23:31:35,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 25 [2021-11-12 23:31:35,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:31:35,050 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,051 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:31:35,051 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:35,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,056 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-11-12 23:31:35,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,085 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:31:35,086 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,086 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:31:35,086 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:35,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,090 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,092 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-12 23:31:35,094 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:35,094 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:165, output treesize:127 [2021-11-12 23:31:35,098 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:31:35,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,108 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-12 23:31:35,110 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.5 percent of original size [2021-11-12 23:31:35,112 INFO L185 QuantifierPusher]: treesize reduction 132, result has 0.8 percent of original size 1 [2021-11-12 23:31:35,115 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,117 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:35,118 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,119 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:35,119 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:31:35,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:31:35,120 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:35,121 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,122 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:35,122 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:31:35,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-12 23:31:35,124 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:35,124 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,125 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-12 23:31:35,127 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size 157 [2021-11-12 23:31:35,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:35,142 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 34 treesize of output 36 [2021-11-12 23:31:35,142 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,143 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:35,144 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:35,145 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:35,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,150 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,153 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:31:35,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-11-12 23:31:35,156 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:35,156 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:158, output treesize:158 [2021-11-12 23:31:35,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,250 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,253 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-11-12 23:31:35,255 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,259 INFO L185 QuantifierPusher]: treesize reduction 135, result has 0.7 percent of original size 1 [2021-11-12 23:31:35,262 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,265 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:35,265 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,266 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:35,266 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,266 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:31:35,267 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:31:35,267 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:35,268 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,268 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:35,270 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-12 23:31:35,284 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 21 treesize of output 17 [2021-11-12 23:31:35,284 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,285 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:35,285 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,286 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:35,286 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:35,292 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 21 treesize of output 17 [2021-11-12 23:31:35,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,293 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:35,294 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,294 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:35,294 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:35,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,312 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,317 INFO L180 QuantifierPusher]: treesize reduction 112, result has 58.4 percent of original size [2021-11-12 23:31:35,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-12 23:31:35,320 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:31:35,320 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:276, output treesize:178 [2021-11-12 23:31:35,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,394 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:31:35,396 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:31:35,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,399 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:31:35,402 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.2 percent of original size [2021-11-12 23:31:35,404 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:35,404 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,405 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:35,405 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:31:35,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:31:35,406 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:35,407 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,407 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:35,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-12 23:31:35,414 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 21 treesize of output 17 [2021-11-12 23:31:35,414 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,414 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:35,415 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,415 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:35,415 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:35,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,418 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,419 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,420 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-12 23:31:35,421 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:35,421 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:83, output treesize:90 [2021-11-12 23:31:35,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,486 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:31:35,488 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:35,489 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:35,493 INFO L180 QuantifierPusher]: treesize reduction 48, result has 63.4 percent of original size [2021-11-12 23:31:35,494 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:35,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,495 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:35,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:31:35,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:31:35,497 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:35,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:35,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-12 23:31:35,505 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 21 treesize of output 17 [2021-11-12 23:31:35,505 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,506 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:35,506 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,506 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:35,507 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:35,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,509 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,510 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:31:35,511 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:35,512 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:80, output treesize:87 [2021-11-12 23:31:35,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,543 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:31:35,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:35,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,617 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,618 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:35,621 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,627 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:35,632 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,638 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:35,640 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,644 INFO L185 QuantifierPusher]: treesize reduction 74, result has 47.5 percent of original size 67 [2021-11-12 23:31:35,652 INFO L185 QuantifierPusher]: treesize reduction 183, result has 49.6 percent of original size 180 [2021-11-12 23:31:35,660 INFO L185 QuantifierPusher]: treesize reduction 183, result has 49.6 percent of original size 180 [2021-11-12 23:31:35,670 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:35,672 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,676 INFO L185 QuantifierPusher]: treesize reduction 137, result has 22.6 percent of original size 40 [2021-11-12 23:31:35,679 INFO L185 QuantifierPusher]: treesize reduction 138, result has 27.7 percent of original size 53 [2021-11-12 23:31:35,683 INFO L180 QuantifierPusher]: treesize reduction 138, result has 30.3 percent of original size [2021-11-12 23:31:35,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-12 23:31:35,686 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,689 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-12 23:31:35,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,709 INFO L180 QuantifierPusher]: treesize reduction 54, result has 67.7 percent of original size [2021-11-12 23:31:35,712 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.2 percent of original size 68 [2021-11-12 23:31:35,717 INFO L180 QuantifierPusher]: treesize reduction 55, result has 50.0 percent of original size [2021-11-12 23:31:35,719 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:35,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,741 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:31:35,742 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:35,744 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,747 INFO L185 QuantifierPusher]: treesize reduction 21, result has 77.2 percent of original size 71 [2021-11-12 23:31:35,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,765 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:31:35,769 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:31:35,773 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:31:35,775 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:31:35,779 INFO L180 QuantifierPusher]: treesize reduction 49, result has 53.3 percent of original size [2021-11-12 23:31:35,781 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:31:35,783 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,784 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:35,791 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:31:35,792 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:35,794 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,797 INFO L185 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-11-12 23:31:35,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,816 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:35,823 INFO L185 QuantifierPusher]: treesize reduction 23, result has 86.9 percent of original size 152 [2021-11-12 23:31:35,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:35,857 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:31:35,867 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:31:35,869 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:31:36,829 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:31:36,829 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:31:36,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 33 [2021-11-12 23:31:36,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307736207] [2021-11-12 23:31:36,830 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-12 23:31:36,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-12 23:31:36,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:31:36,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-12 23:31:36,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=656, Invalid=904, Unknown=0, NotChecked=0, Total=1560 [2021-11-12 23:31:36,832 INFO L87 Difference]: Start difference. First operand 177 states and 201 transitions. Second operand has 34 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 33 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 23:31:37,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:31:37,738 INFO L93 Difference]: Finished difference Result 572 states and 750 transitions. [2021-11-12 23:31:37,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-12 23:31:37,743 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 33 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 135 [2021-11-12 23:31:37,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:31:37,746 INFO L225 Difference]: With dead ends: 572 [2021-11-12 23:31:37,746 INFO L226 Difference]: Without dead ends: 412 [2021-11-12 23:31:37,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 357 SyntacticMatches, 8 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1280 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1211, Invalid=1759, Unknown=0, NotChecked=0, Total=2970 [2021-11-12 23:31:37,753 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 476 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 252.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.29ms SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 354.05ms IncrementalHoareTripleChecker+Time [2021-11-12 23:31:37,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 91 Invalid, 452 Unknown, 0 Unchecked, 5.29ms Time], IncrementalHoareTripleChecker [312 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 354.05ms Time] [2021-11-12 23:31:37,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-11-12 23:31:37,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 353. [2021-11-12 23:31:37,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 352 states have (on average 1.1164772727272727) internal successors, (393), 352 states have internal predecessors, (393), 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 23:31:37,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 393 transitions. [2021-11-12 23:31:37,844 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 393 transitions. Word has length 135 [2021-11-12 23:31:37,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:31:37,844 INFO L470 AbstractCegarLoop]: Abstraction has 353 states and 393 transitions. [2021-11-12 23:31:37,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 33 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 23:31:37,845 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 393 transitions. [2021-11-12 23:31:37,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-11-12 23:31:37,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:31:37,861 INFO L514 BasicCegarLoop]: trace histogram [180, 60, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:31:37,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-12 23:31:38,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable351 [2021-11-12 23:31:38,063 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:31:38,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:31:38,063 INFO L85 PathProgramCache]: Analyzing trace with hash 138790271, now seen corresponding path program 6 times [2021-11-12 23:31:38,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:31:38,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106573065] [2021-11-12 23:31:38,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:38,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:31:38,084 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:31:38,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1695395933] [2021-11-12 23:31:38,085 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:31:38,085 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:31:38,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:31:38,086 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:31:38,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-12 23:31:38,318 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:31:38,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:31:38,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-12 23:31:38,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:31:39,978 INFO L134 CoverageAnalysis]: Checked inductivity of 19120 backedges. 435 proven. 14466 refuted. 0 times theorem prover too weak. 4219 trivial. 0 not checked. [2021-11-12 23:31:39,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:31:41,821 INFO L134 CoverageAnalysis]: Checked inductivity of 19120 backedges. 435 proven. 14466 refuted. 0 times theorem prover too weak. 4219 trivial. 0 not checked. [2021-11-12 23:31:41,822 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:31:41,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106573065] [2021-11-12 23:31:41,822 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:31:41,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695395933] [2021-11-12 23:31:41,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695395933] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:31:41,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1584099429] [2021-11-12 23:31:41,831 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:31:41,831 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:31:41,831 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:31:41,832 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:31:41,832 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:31:41,838 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:41,838 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:41,839 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:41,839 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:31:41,840 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:41,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:41,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-12 23:31:41,847 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:31:41,850 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_19|], 36=[|v_#valid_34|]} [2021-11-12 23:31:41,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 25 [2021-11-12 23:31:41,872 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:41,872 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:31:41,873 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:41,873 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:31:41,874 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:41,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:41,878 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:41,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-11-12 23:31:41,905 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:41,908 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:31:41,908 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:41,909 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:31:41,909 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:41,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:41,913 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:41,915 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:41,916 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-12 23:31:41,917 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:41,917 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:165, output treesize:127 [2021-11-12 23:31:41,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:41,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:31:41,933 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:41,936 INFO L185 QuantifierPusher]: treesize reduction 4, result has 97.0 percent of original size 130 [2021-11-12 23:31:41,962 INFO L180 QuantifierPusher]: treesize reduction 4, result has 97.2 percent of original size [2021-11-12 23:31:41,964 INFO L185 QuantifierPusher]: treesize reduction 132, result has 0.8 percent of original size 1 [2021-11-12 23:31:41,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:41,970 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:41,971 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:41,971 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:41,972 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:41,972 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:31:41,973 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:31:41,973 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:41,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:41,975 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:41,975 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:41,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:31:41,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-12 23:31:41,977 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:41,977 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:41,978 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-12 23:31:41,980 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size 157 [2021-11-12 23:31:41,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:41,994 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 34 treesize of output 36 [2021-11-12 23:31:41,995 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:41,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:41,996 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:41,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:41,997 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:41,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,001 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,004 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:31:42,006 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-11-12 23:31:42,008 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:42,008 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:158, output treesize:158 [2021-11-12 23:31:42,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-11-12 23:31:42,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,109 INFO L185 QuantifierPusher]: treesize reduction 135, result has 0.7 percent of original size 1 [2021-11-12 23:31:42,111 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,114 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:42,114 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,115 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:42,115 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:31:42,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:31:42,116 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:42,117 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,117 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:42,119 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-12 23:31:42,129 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 21 treesize of output 17 [2021-11-12 23:31:42,129 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:42,130 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,130 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:42,130 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:42,137 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 21 treesize of output 17 [2021-11-12 23:31:42,138 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,138 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:42,139 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:42,139 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:42,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,151 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,156 INFO L180 QuantifierPusher]: treesize reduction 112, result has 58.4 percent of original size [2021-11-12 23:31:42,158 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-12 23:31:42,159 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:31:42,159 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:276, output treesize:178 [2021-11-12 23:31:42,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,220 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:31:42,221 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:31:42,222 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,224 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:31:42,227 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.2 percent of original size [2021-11-12 23:31:42,229 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:42,230 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,230 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:42,230 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:31:42,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:31:42,232 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:42,232 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:42,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-12 23:31:42,240 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 21 treesize of output 17 [2021-11-12 23:31:42,241 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,241 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:42,242 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,242 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:42,242 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:42,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,244 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,245 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,246 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-12 23:31:42,246 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:42,246 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:83, output treesize:90 [2021-11-12 23:31:42,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,306 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:31:42,307 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:42,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,310 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:42,313 INFO L180 QuantifierPusher]: treesize reduction 48, result has 63.4 percent of original size [2021-11-12 23:31:42,315 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:42,316 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,316 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:42,316 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,317 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:31:42,317 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:31:42,318 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:42,318 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,318 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:42,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-12 23:31:42,325 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 21 treesize of output 17 [2021-11-12 23:31:42,326 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,326 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:42,326 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:42,327 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:42,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,329 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,330 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,332 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:31:42,332 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:42,332 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:80, output treesize:87 [2021-11-12 23:31:42,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,363 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:31:42,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:42,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,423 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,424 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:42,452 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,465 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:42,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,478 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:42,480 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,484 INFO L185 QuantifierPusher]: treesize reduction 32, result has 79.5 percent of original size 124 [2021-11-12 23:31:42,488 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:42,489 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 23:31:42,503 INFO L185 QuantifierPusher]: treesize reduction 138, result has 56.6 percent of original size 180 [2021-11-12 23:31:42,513 INFO L185 QuantifierPusher]: treesize reduction 138, result has 56.6 percent of original size 180 [2021-11-12 23:31:42,524 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:42,525 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,528 INFO L185 QuantifierPusher]: treesize reduction 137, result has 22.6 percent of original size 40 [2021-11-12 23:31:42,532 INFO L185 QuantifierPusher]: treesize reduction 138, result has 27.7 percent of original size 53 [2021-11-12 23:31:42,535 INFO L180 QuantifierPusher]: treesize reduction 138, result has 30.3 percent of original size [2021-11-12 23:31:42,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-12 23:31:42,537 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,539 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-12 23:31:42,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,567 INFO L180 QuantifierPusher]: treesize reduction 54, result has 67.7 percent of original size [2021-11-12 23:31:42,570 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.2 percent of original size 68 [2021-11-12 23:31:42,575 INFO L180 QuantifierPusher]: treesize reduction 55, result has 50.0 percent of original size [2021-11-12 23:31:42,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:42,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,603 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:31:42,604 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:42,606 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,610 INFO L185 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-11-12 23:31:42,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,626 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,630 INFO L185 QuantifierPusher]: treesize reduction 23, result has 86.9 percent of original size 152 [2021-11-12 23:31:42,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,657 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:31:42,661 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:31:42,666 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:31:42,667 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:31:42,673 INFO L180 QuantifierPusher]: treesize reduction 49, result has 53.3 percent of original size [2021-11-12 23:31:42,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:31:42,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:42,685 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:31:42,686 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:42,688 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,692 INFO L185 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-11-12 23:31:42,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,712 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:42,719 INFO L185 QuantifierPusher]: treesize reduction 23, result has 86.9 percent of original size 152 [2021-11-12 23:31:42,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:42,746 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:31:42,749 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:31:42,751 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:31:44,378 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:31:44,378 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:31:44,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 78 [2021-11-12 23:31:44,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557569167] [2021-11-12 23:31:44,379 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-12 23:31:44,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2021-11-12 23:31:44,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:31:44,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2021-11-12 23:31:44,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2208, Invalid=4764, Unknown=0, NotChecked=0, Total=6972 [2021-11-12 23:31:44,385 INFO L87 Difference]: Start difference. First operand 353 states and 393 transitions. Second operand has 78 states, 78 states have (on average 1.358974358974359) internal successors, (106), 78 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 23:31:52,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:31:52,579 INFO L93 Difference]: Finished difference Result 2603 states and 2990 transitions. [2021-11-12 23:31:52,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2021-11-12 23:31:52,579 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 1.358974358974359) internal successors, (106), 78 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) Word has length 263 [2021-11-12 23:31:52,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:31:52,595 INFO L225 Difference]: With dead ends: 2603 [2021-11-12 23:31:52,595 INFO L226 Difference]: Without dead ends: 2509 [2021-11-12 23:31:52,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1081 GetRequests, 826 SyntacticMatches, 8 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26670 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=18447, Invalid=43305, Unknown=0, NotChecked=0, Total=61752 [2021-11-12 23:31:52,612 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 785 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 972 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1403.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 2328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.24ms SdHoareTripleChecker+Time, 972 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1926.90ms IncrementalHoareTripleChecker+Time [2021-11-12 23:31:52,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [785 Valid, 892 Invalid, 2328 Unknown, 0 Unchecked, 16.24ms Time], IncrementalHoareTripleChecker [972 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 1926.90ms Time] [2021-11-12 23:31:52,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2509 states. [2021-11-12 23:31:52,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2509 to 609. [2021-11-12 23:31:52,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 608 states have (on average 1.080592105263158) internal successors, (657), 608 states have internal predecessors, (657), 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 23:31:52,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 657 transitions. [2021-11-12 23:31:52,730 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 657 transitions. Word has length 263 [2021-11-12 23:31:52,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:31:52,731 INFO L470 AbstractCegarLoop]: Abstraction has 609 states and 657 transitions. [2021-11-12 23:31:52,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 1.358974358974359) internal successors, (106), 78 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 23:31:52,731 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 657 transitions. [2021-11-12 23:31:52,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2021-11-12 23:31:52,743 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:31:52,743 INFO L514 BasicCegarLoop]: trace histogram [420, 60, 14, 14, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:31:52,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-12 23:31:52,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable440,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:31:52,967 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:31:52,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:31:52,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1481873121, now seen corresponding path program 7 times [2021-11-12 23:31:52,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:31:52,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976863442] [2021-11-12 23:31:52,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:52,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:31:52,995 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:31:52,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [373826361] [2021-11-12 23:31:52,996 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:31:52,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:31:52,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:31:52,996 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:31:52,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-12 23:31:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:31:53,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 2206 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-12 23:31:53,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:31:54,849 INFO L134 CoverageAnalysis]: Checked inductivity of 95960 backedges. 963 proven. 465 refuted. 0 times theorem prover too weak. 94532 trivial. 0 not checked. [2021-11-12 23:31:54,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:31:57,750 INFO L134 CoverageAnalysis]: Checked inductivity of 95960 backedges. 963 proven. 465 refuted. 0 times theorem prover too weak. 94532 trivial. 0 not checked. [2021-11-12 23:31:57,750 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:31:57,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976863442] [2021-11-12 23:31:57,751 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:31:57,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373826361] [2021-11-12 23:31:57,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373826361] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:31:57,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1364927763] [2021-11-12 23:31:57,754 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:31:57,754 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:31:57,755 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:31:57,755 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:31:57,755 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:31:57,761 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,762 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:57,763 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:31:57,764 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:57,764 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,765 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-12 23:31:57,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:31:57,772 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_20|], 36=[|v_#valid_35|]} [2021-11-12 23:31:57,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 25 [2021-11-12 23:31:57,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:31:57,799 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,800 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:31:57,800 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:57,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:57,804 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-11-12 23:31:57,830 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,832 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:31:57,832 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:31:57,833 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:57,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:57,837 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,838 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,840 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-12 23:31:57,840 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:57,840 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:165, output treesize:127 [2021-11-12 23:31:57,844 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:31:57,855 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,858 INFO L185 QuantifierPusher]: treesize reduction 4, result has 97.0 percent of original size 130 [2021-11-12 23:31:57,861 INFO L180 QuantifierPusher]: treesize reduction 4, result has 97.2 percent of original size [2021-11-12 23:31:57,863 INFO L185 QuantifierPusher]: treesize reduction 132, result has 0.8 percent of original size 1 [2021-11-12 23:31:57,866 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,869 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:57,869 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,870 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:57,870 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:57,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:31:57,871 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:57,872 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,872 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:57,873 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,873 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 23:31:57,874 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:31:57,874 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:57,874 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,875 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:31:57,877 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:31:57,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:31:57,889 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 38 treesize of output 40 [2021-11-12 23:31:57,890 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,891 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:31:57,891 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,891 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:31:57,892 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:57,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:57,896 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:57,904 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-12 23:31:57,904 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:57,905 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:166, output treesize:173 [2021-11-12 23:31:57,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:57,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:57,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:57,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:57,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:57,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:57,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,008 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,009 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-11-12 23:31:58,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,015 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:58,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,017 INFO L185 QuantifierPusher]: treesize reduction 29, result has 49.1 percent of original size 28 [2021-11-12 23:31:58,020 INFO L185 QuantifierPusher]: treesize reduction 30, result has 77.4 percent of original size 103 [2021-11-12 23:31:58,023 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,027 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:58,027 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,028 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:58,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:31:58,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:31:58,030 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:58,030 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,031 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:58,033 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:31:58,044 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 21 treesize of output 17 [2021-11-12 23:31:58,045 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,045 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:58,046 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,046 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:58,046 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:58,054 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 21 treesize of output 17 [2021-11-12 23:31:58,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,055 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:58,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:58,056 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:58,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,069 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,075 INFO L180 QuantifierPusher]: treesize reduction 107, result has 59.5 percent of original size [2021-11-12 23:31:58,077 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-12 23:31:58,077 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:31:58,078 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:271, output treesize:178 [2021-11-12 23:31:58,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,121 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:31:58,122 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:58,123 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,126 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:58,129 INFO L180 QuantifierPusher]: treesize reduction 48, result has 63.4 percent of original size [2021-11-12 23:31:58,132 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:58,132 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,133 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:58,133 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,134 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:31:58,134 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:31:58,135 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:58,136 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,136 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:31:58,137 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-12 23:31:58,143 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 21 treesize of output 17 [2021-11-12 23:31:58,143 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,144 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:58,144 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,144 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:31:58,145 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:31:58,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,147 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,148 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:31:58,149 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:31:58,150 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:80, output treesize:87 [2021-11-12 23:31:58,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,180 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:31:58,181 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:58,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,248 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:58,251 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,258 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:58,261 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,271 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:58,274 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,278 INFO L185 QuantifierPusher]: treesize reduction 74, result has 47.5 percent of original size 67 [2021-11-12 23:31:58,286 INFO L185 QuantifierPusher]: treesize reduction 183, result has 49.6 percent of original size 180 [2021-11-12 23:31:58,297 INFO L185 QuantifierPusher]: treesize reduction 183, result has 49.6 percent of original size 180 [2021-11-12 23:31:58,308 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:31:58,310 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,313 INFO L185 QuantifierPusher]: treesize reduction 137, result has 22.6 percent of original size 40 [2021-11-12 23:31:58,314 INFO L185 QuantifierPusher]: treesize reduction 138, result has 27.7 percent of original size 53 [2021-11-12 23:31:58,317 INFO L180 QuantifierPusher]: treesize reduction 138, result has 30.3 percent of original size [2021-11-12 23:31:58,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-12 23:31:58,322 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,324 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-12 23:31:58,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,347 INFO L180 QuantifierPusher]: treesize reduction 54, result has 67.7 percent of original size [2021-11-12 23:31:58,350 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.2 percent of original size 68 [2021-11-12 23:31:58,354 INFO L180 QuantifierPusher]: treesize reduction 55, result has 50.0 percent of original size [2021-11-12 23:31:58,356 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:31:58,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,377 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:31:58,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:58,381 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,386 INFO L185 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-11-12 23:31:58,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,403 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,410 INFO L185 QuantifierPusher]: treesize reduction 23, result has 86.9 percent of original size 152 [2021-11-12 23:31:58,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,440 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:31:58,444 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:31:58,449 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:31:58,450 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:31:58,456 INFO L180 QuantifierPusher]: treesize reduction 49, result has 53.3 percent of original size [2021-11-12 23:31:58,458 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:31:58,460 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,461 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:58,467 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:31:58,469 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:31:58,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:31:58,474 INFO L185 QuantifierPusher]: treesize reduction 21, result has 77.2 percent of original size 71 [2021-11-12 23:31:58,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:31:58,492 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:31:58,500 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:31:58,502 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:31:59,484 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:31:59,485 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:31:59,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 65 [2021-11-12 23:31:59,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414826609] [2021-11-12 23:31:59,485 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-12 23:31:59,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-12 23:31:59,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:31:59,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-12 23:31:59,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2304, Invalid=2808, Unknown=0, NotChecked=0, Total=5112 [2021-11-12 23:31:59,488 INFO L87 Difference]: Start difference. First operand 609 states and 657 transitions. Second operand has 66 states, 66 states have (on average 1.1818181818181819) internal successors, (78), 65 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 23:32:04,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:32:04,552 INFO L93 Difference]: Finished difference Result 1916 states and 2526 transitions. [2021-11-12 23:32:04,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-12 23:32:04,553 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 1.1818181818181819) internal successors, (78), 65 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) Word has length 519 [2021-11-12 23:32:04,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:32:04,561 INFO L225 Difference]: With dead ends: 1916 [2021-11-12 23:32:04,562 INFO L226 Difference]: Without dead ends: 1340 [2021-11-12 23:32:04,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1586 GetRequests, 1484 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2952 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=4443, Invalid=6063, Unknown=0, NotChecked=0, Total=10506 [2021-11-12 23:32:04,565 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 974 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 797.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.65ms SdHoareTripleChecker+Time, 663 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1108.53ms IncrementalHoareTripleChecker+Time [2021-11-12 23:32:04,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [974 Valid, 187 Invalid, 940 Unknown, 0 Unchecked, 7.65ms Time], IncrementalHoareTripleChecker [663 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 1108.53ms Time] [2021-11-12 23:32:04,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2021-11-12 23:32:04,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1217. [2021-11-12 23:32:04,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 1216 states have (on average 1.066611842105263) internal successors, (1297), 1216 states have internal predecessors, (1297), 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 23:32:04,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1297 transitions. [2021-11-12 23:32:04,786 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1297 transitions. Word has length 519 [2021-11-12 23:32:04,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:32:04,786 INFO L470 AbstractCegarLoop]: Abstraction has 1217 states and 1297 transitions. [2021-11-12 23:32:04,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 1.1818181818181819) internal successors, (78), 65 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 23:32:04,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1297 transitions. [2021-11-12 23:32:04,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1032 [2021-11-12 23:32:04,828 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:32:04,829 INFO L514 BasicCegarLoop]: trace histogram [868, 124, 14, 14, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:32:04,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-12 23:32:05,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable538,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:32:05,044 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:32:05,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:32:05,045 INFO L85 PathProgramCache]: Analyzing trace with hash 300696863, now seen corresponding path program 8 times [2021-11-12 23:32:05,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:32:05,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957691238] [2021-11-12 23:32:05,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:32:05,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:32:05,104 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:32:05,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1584030197] [2021-11-12 23:32:05,104 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:32:05,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:32:05,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:32:05,105 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:32:05,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5331d6a-be6d-4a12-95e8-1f4df5cbf66c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process