./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-tiling/poly1.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_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/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_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/poly1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/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_a31c428b-e1da-45ef-b3f7-ec009f1b941e/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 3116e607f032f81b099fa1792f5e25b70e1832d9d57f1b8b6500e90d2143faec --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:35:31,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:35:31,959 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:35:31,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:35:31,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:35:32,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:35:32,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:35:32,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:35:32,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:35:32,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:35:32,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:35:32,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:35:32,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:35:32,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:35:32,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:35:32,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:35:32,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:35:32,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:35:32,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:35:32,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:35:32,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:35:32,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:35:32,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:35:32,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:35:32,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:35:32,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:35:32,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:35:32,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:35:32,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:35:32,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:35:32,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:35:32,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:35:32,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:35:32,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:35:32,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:35:32,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:35:32,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:35:32,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:35:32,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:35:32,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:35:32,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:35:32,082 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 22:35:32,136 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:35:32,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:35:32,139 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:35:32,139 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:35:32,139 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:35:32,140 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:35:32,140 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:35:32,140 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:35:32,140 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:35:32,141 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:35:32,150 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:35:32,150 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:35:32,150 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:35:32,151 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:35:32,151 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:35:32,151 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:35:32,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:35:32,153 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:35:32,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:35:32,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:35:32,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:35:32,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:35:32,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:35:32,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:35:32,155 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:35:32,159 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:35:32,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:35:32,159 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:35:32,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:35:32,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:35:32,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:35:32,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:35:32,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:35:32,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:35:32,161 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:35:32,161 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:35:32,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:35:32,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:35:32,162 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:35:32,162 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:35:32,162 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_a31c428b-e1da-45ef-b3f7-ec009f1b941e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3116e607f032f81b099fa1792f5e25b70e1832d9d57f1b8b6500e90d2143faec [2021-11-12 22:35:32,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:35:32,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:35:32,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:35:32,517 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:35:32,518 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:35:32,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/array-tiling/poly1.c [2021-11-12 22:35:32,621 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/data/56ce445fd/01db6469093543619954b41f62842837/FLAG994355ea3 [2021-11-12 22:35:33,291 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:35:33,291 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/sv-benchmarks/c/array-tiling/poly1.c [2021-11-12 22:35:33,313 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/data/56ce445fd/01db6469093543619954b41f62842837/FLAG994355ea3 [2021-11-12 22:35:33,651 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/data/56ce445fd/01db6469093543619954b41f62842837 [2021-11-12 22:35:33,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:35:33,656 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:35:33,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:35:33,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:35:33,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:35:33,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:35:33" (1/1) ... [2021-11-12 22:35:33,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e815ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:33, skipping insertion in model container [2021-11-12 22:35:33,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:35:33" (1/1) ... [2021-11-12 22:35:33,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:35:33,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:35:34,017 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_a31c428b-e1da-45ef-b3f7-ec009f1b941e/sv-benchmarks/c/array-tiling/poly1.c[396,409] [2021-11-12 22:35:34,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:35:34,053 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:35:34,069 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_a31c428b-e1da-45ef-b3f7-ec009f1b941e/sv-benchmarks/c/array-tiling/poly1.c[396,409] [2021-11-12 22:35:34,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:35:34,112 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:35:34,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:34 WrapperNode [2021-11-12 22:35:34,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:35:34,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:35:34,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:35:34,115 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:35:34,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:34" (1/1) ... [2021-11-12 22:35:34,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:34" (1/1) ... [2021-11-12 22:35:34,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:35:34,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:35:34,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:35:34,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:35:34,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:34" (1/1) ... [2021-11-12 22:35:34,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:34" (1/1) ... [2021-11-12 22:35:34,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:34" (1/1) ... [2021-11-12 22:35:34,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:34" (1/1) ... [2021-11-12 22:35:34,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:34" (1/1) ... [2021-11-12 22:35:34,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:34" (1/1) ... [2021-11-12 22:35:34,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:34" (1/1) ... [2021-11-12 22:35:34,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:35:34,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:35:34,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:35:34,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:35:34,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:34" (1/1) ... [2021-11-12 22:35:34,232 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:35:34,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:35:34,265 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:35:34,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:35:34,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 22:35:34,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:35:34,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 22:35:34,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:35:34,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:35:34,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:35:34,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 22:35:34,644 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:35:34,644 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-12 22:35:34,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:35:34 BoogieIcfgContainer [2021-11-12 22:35:34,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:35:34,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:35:34,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:35:34,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:35:34,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:35:33" (1/3) ... [2021-11-12 22:35:34,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f65f0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:35:34, skipping insertion in model container [2021-11-12 22:35:34,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:35:34" (2/3) ... [2021-11-12 22:35:34,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f65f0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:35:34, skipping insertion in model container [2021-11-12 22:35:34,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:35:34" (3/3) ... [2021-11-12 22:35:34,658 INFO L111 eAbstractionObserver]: Analyzing ICFG poly1.c [2021-11-12 22:35:34,665 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:35:34,666 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:35:34,726 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:35:34,734 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 22:35:34,735 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:35:34,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 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 22:35:34,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-12 22:35:34,758 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:35:34,759 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-12 22:35:34,760 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:35:34,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:35:34,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1912434953, now seen corresponding path program 1 times [2021-11-12 22:35:34,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:35:34,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026380850] [2021-11-12 22:35:34,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:35:34,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:35:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:35:35,033 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 22:35:35,041 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:35:35,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026380850] [2021-11-12 22:35:35,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026380850] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:35:35,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:35:35,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 22:35:35,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136503299] [2021-11-12 22:35:35,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:35:35,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:35:35,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:35:35,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:35:35,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:35:35,093 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 22:35:35,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:35:35,163 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2021-11-12 22:35:35,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:35:35,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-11-12 22:35:35,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:35:35,180 INFO L225 Difference]: With dead ends: 18 [2021-11-12 22:35:35,180 INFO L226 Difference]: Without dead ends: 9 [2021-11-12 22:35:35,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:35:35,191 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.65ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.21ms IncrementalHoareTripleChecker+Time [2021-11-12 22:35:35,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 14 Unknown, 0 Unchecked, 0.65ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 54.21ms Time] [2021-11-12 22:35:35,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-12 22:35:35,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-12 22:35:35,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 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 22:35:35,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-11-12 22:35:35,233 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2021-11-12 22:35:35,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:35:35,234 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-11-12 22:35:35,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 22:35:35,236 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-11-12 22:35:35,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-12 22:35:35,237 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:35:35,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:35:35,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 22:35:35,240 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:35:35,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:35:35,246 INFO L85 PathProgramCache]: Analyzing trace with hash 840302022, now seen corresponding path program 1 times [2021-11-12 22:35:35,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:35:35,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154179454] [2021-11-12 22:35:35,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:35:35,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:35:35,282 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 22:35:35,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1403211695] [2021-11-12 22:35:35,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:35:35,283 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:35:35,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:35:35,309 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:35:35,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-12 22:35:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:35:35,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:35:35,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:35:35,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:35:35,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:35:35,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:35:35,516 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:35:35,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154179454] [2021-11-12 22:35:35,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 22:35:35,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403211695] [2021-11-12 22:35:35,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403211695] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:35:35,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1175721258] [2021-11-12 22:35:35,540 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-12 22:35:35,541 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 22:35:35,546 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 22:35:35,557 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 22:35:35,558 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 22:35:35,595 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:35,600 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:35,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:35,602 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 22:35:35,606 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:35,607 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:35,608 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 22:35:35,613 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 22:35:35,640 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_12|], 21=[|v_#valid_13|]} [2021-11-12 22:35:35,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 22:35:35,686 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:35,687 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 22:35:35,688 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:35,689 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 22:35:35,689 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:35,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:35,724 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:35,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 22:35:35,752 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:35,755 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 22:35:35,756 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:35,757 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 22:35:35,758 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:35,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:35,788 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:35,792 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:35,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 22:35:35,800 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 22:35:35,801 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 22:35:35,822 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 22:35:35,825 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:35,827 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:35,828 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 22:35:35,829 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:35,830 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:35,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 22:35:35,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-11-12 22:35:35,852 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_13|], 15=[|v_#valid_14|]} [2021-11-12 22:35:35,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,891 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 22:35:35,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 22:35:35,895 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:35,900 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 22:35:35,900 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:35,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 22:35:35,902 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:35,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:35,943 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:35,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:35,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 22:35:35,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:35,977 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 22:35:35,978 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:35,979 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 22:35:35,980 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:35,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:35,991 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:35,995 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:35,998 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-11-12 22:35:35,999 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 22:35:36,000 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:135, output treesize:128 [2021-11-12 22:35:36,010 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,018 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:36,020 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,021 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:36,022 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,023 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-12 22:35:36,025 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:36,026 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,027 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 22:35:36,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-12 22:35:36,031 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:36,033 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,034 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-11-12 22:35:36,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-11-12 22:35:36,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:36,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:36,095 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 42 treesize of output 44 [2021-11-12 22:35:36,109 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,112 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 22:35:36,113 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 22:35:36,115 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:36,143 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-12 22:35:36,144 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,144 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:36,145 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:36,146 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:36,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:36,158 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,163 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-11-12 22:35:36,170 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 22:35:36,171 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:337, output treesize:163 [2021-11-12 22:35:36,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:36,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:36,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:36,400 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,447 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:36,467 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,474 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:36,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,483 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:36,485 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,486 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-12 22:35:36,489 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:36,492 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-12 22:35:36,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-11-12 22:35:36,498 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:36,500 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-11-12 22:35:36,506 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:36,507 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,509 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:36,510 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-12 22:35:36,513 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:36,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 22:35:36,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-12 22:35:36,517 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:36,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-11-12 22:35:36,532 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 436 [2021-11-12 22:35:36,532 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:36,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,553 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 364 [2021-11-12 22:35:36,566 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 434 [2021-11-12 22:35:36,631 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-12 22:35:36,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,632 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:36,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,634 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:36,635 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:36,665 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-12 22:35:36,671 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,673 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:36,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:36,675 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:36,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:36,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:36,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:36,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 68 [2021-11-12 22:35:36,733 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,746 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-12 22:35:36,750 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,754 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-12 22:35:36,755 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:36,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:36,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:36,786 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 42 treesize of output 44 [2021-11-12 22:35:36,789 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,800 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 22:35:36,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 22:35:36,803 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:36,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:36,884 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:36,929 INFO L180 QuantifierPusher]: treesize reduction 111, result has 77.2 percent of original size [2021-11-12 22:35:36,939 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 375 [2021-11-12 22:35:36,944 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 22:35:36,944 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:991, output treesize:375 [2021-11-12 22:35:36,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:37,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:37,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:37,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:37,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:37,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:37,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:37,113 INFO L180 QuantifierPusher]: treesize reduction 42, result has 71.4 percent of original size [2021-11-12 22:35:37,117 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:37,117 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:37,118 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 22:35:37,119 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:37,120 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:37,124 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 22:35:37,131 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-11-12 22:35:37,148 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 25 treesize of output 21 [2021-11-12 22:35:37,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:37,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 22:35:37,151 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:37,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 22:35:37,152 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:37,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:37,163 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:37,171 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-12 22:35:37,172 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:37,175 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:37,176 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:37,176 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:37,177 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:37,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:37,181 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:37,183 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:37,185 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-11-12 22:35:37,186 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 22:35:37,187 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:163, output treesize:76 [2021-11-12 22:35:37,199 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 22:35:37,204 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 22:35:37,225 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 22:35:37,933 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 22:35:37,933 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:35:37,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-12 22:35:37,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567961497] [2021-11-12 22:35:37,935 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-12 22:35:37,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:35:37,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:35:37,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:35:37,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:35:37,937 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 22:35:37,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:35:37,978 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2021-11-12 22:35:37,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:35:37,978 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 7 [2021-11-12 22:35:37,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:35:37,979 INFO L225 Difference]: With dead ends: 15 [2021-11-12 22:35:37,979 INFO L226 Difference]: Without dead ends: 10 [2021-11-12 22:35:37,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:35:37,982 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.84ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.41ms IncrementalHoareTripleChecker+Time [2021-11-12 22:35:37,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 14 Invalid, 22 Unknown, 0 Unchecked, 0.84ms Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 33.41ms Time] [2021-11-12 22:35:37,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-11-12 22:35:37,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-11-12 22:35:37,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 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 22:35:37,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-11-12 22:35:37,987 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 7 [2021-11-12 22:35:37,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:35:37,987 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-11-12 22:35:37,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 22:35:37,988 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-11-12 22:35:37,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-12 22:35:37,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:35:37,989 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-11-12 22:35:38,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:35:38,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:35:38,204 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:35:38,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:35:38,204 INFO L85 PathProgramCache]: Analyzing trace with hash 275802327, now seen corresponding path program 2 times [2021-11-12 22:35:38,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:35:38,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575495074] [2021-11-12 22:35:38,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:35:38,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:35:38,220 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 22:35:38,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1971295407] [2021-11-12 22:35:38,220 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 22:35:38,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:35:38,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:35:38,232 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:35:38,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-12 22:35:38,318 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-12 22:35:38,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:35:38,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 22:35:38,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:35:38,357 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 11 treesize of output 7 [2021-11-12 22:35:38,397 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-12 22:35:38,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-12 22:35:38,509 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:35:38,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:35:38,789 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:38,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 79 [2021-11-12 22:35:38,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 6 [2021-11-12 22:35:38,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 6 [2021-11-12 22:35:38,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 65 [2021-11-12 22:35:39,022 INFO L354 Elim1Store]: treesize reduction 39, result has 23.5 percent of original size [2021-11-12 22:35:39,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 75 [2021-11-12 22:35:39,294 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:35:39,294 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:35:39,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575495074] [2021-11-12 22:35:39,294 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 22:35:39,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971295407] [2021-11-12 22:35:39,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971295407] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:35:39,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1200582182] [2021-11-12 22:35:39,298 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-12 22:35:39,299 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 22:35:39,299 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 22:35:39,299 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 22:35:39,300 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 22:35:39,306 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,307 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:39,308 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 22:35:39,310 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:39,310 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 22:35:39,313 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 22:35:39,318 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_15|], 21=[|v_#valid_16|]} [2021-11-12 22:35:39,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 22:35:39,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 22:35:39,338 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,338 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 22:35:39,339 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:39,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:39,346 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 22:35:39,370 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 22:35:39,374 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 22:35:39,375 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:39,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:39,381 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,383 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,385 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 22:35:39,386 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 22:35:39,386 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 22:35:39,394 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 22:35:39,395 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:39,396 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,396 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 22:35:39,397 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:39,398 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,399 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 22:35:39,402 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-11-12 22:35:39,407 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_16|], 15=[|v_#valid_17|]} [2021-11-12 22:35:39,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,433 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 22:35:39,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 22:35:39,438 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,440 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 22:35:39,441 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,442 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 22:35:39,442 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:39,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:39,450 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 22:35:39,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,473 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 22:35:39,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 22:35:39,477 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:39,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:39,483 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,489 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-11-12 22:35:39,491 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 22:35:39,492 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:135, output treesize:128 [2021-11-12 22:35:39,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,499 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:39,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 22:35:39,504 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size 141 [2021-11-12 22:35:39,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-12 22:35:39,517 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,519 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 22:35:39,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 22:35:39,520 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:39,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:39,536 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,539 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-11-12 22:35:39,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-11-12 22:35:39,542 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 22:35:39,543 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:142, output treesize:135 [2021-11-12 22:35:39,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:39,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:39,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:39,624 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,649 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:39,655 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,657 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:39,658 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,658 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:39,659 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-12 22:35:39,661 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:39,661 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,662 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 22:35:39,663 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-12 22:35:39,663 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:39,664 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,665 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-11-12 22:35:39,668 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:39,670 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,672 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:39,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 22:35:39,675 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:39,676 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,676 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 22:35:39,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-11-12 22:35:39,678 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:39,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,680 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-12 22:35:39,686 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 410 [2021-11-12 22:35:39,687 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:39,691 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 338 [2021-11-12 22:35:39,702 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 408 [2021-11-12 22:35:39,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 54 [2021-11-12 22:35:39,747 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,749 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 22:35:39,750 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 22:35:39,751 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:39,766 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-12 22:35:39,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:39,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,768 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:39,768 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:39,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:39,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2021-11-12 22:35:39,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,803 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 22:35:39,804 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 22:35:39,805 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:39,819 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-12 22:35:39,820 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:39,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:39,822 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:39,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:39,867 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:39,890 INFO L180 QuantifierPusher]: treesize reduction 108, result has 76.5 percent of original size [2021-11-12 22:35:39,898 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 352 [2021-11-12 22:35:39,899 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 22:35:39,900 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:939, output treesize:352 [2021-11-12 22:35:39,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:39,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:39,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:39,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:39,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:39,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:39,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:39,998 INFO L180 QuantifierPusher]: treesize reduction 42, result has 71.4 percent of original size [2021-11-12 22:35:40,002 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:40,003 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:40,003 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 22:35:40,006 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:40,007 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:40,007 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 22:35:40,009 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-11-12 22:35:40,024 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 25 treesize of output 21 [2021-11-12 22:35:40,025 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:40,026 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 22:35:40,026 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:40,027 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 22:35:40,027 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:40,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:40,040 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:40,047 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-12 22:35:40,048 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:40,048 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:40,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:40,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:40,050 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:40,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:40,054 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:40,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:40,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-11-12 22:35:40,059 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 22:35:40,059 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:163, output treesize:76 [2021-11-12 22:35:40,066 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 22:35:40,068 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 22:35:40,075 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 22:35:40,709 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 22:35:40,709 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:35:40,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-11-12 22:35:40,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905984539] [2021-11-12 22:35:40,709 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-12 22:35:40,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 22:35:40,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:35:40,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 22:35:40,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-11-12 22:35:40,711 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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 22:35:41,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:35:41,504 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2021-11-12 22:35:41,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 22:35:41,505 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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 8 [2021-11-12 22:35:41,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:35:41,506 INFO L225 Difference]: With dead ends: 53 [2021-11-12 22:35:41,506 INFO L226 Difference]: Without dead ends: 51 [2021-11-12 22:35:41,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2021-11-12 22:35:41,507 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 60 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 231.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.07ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 271.94ms IncrementalHoareTripleChecker+Time [2021-11-12 22:35:41,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 42 Invalid, 107 Unknown, 0 Unchecked, 3.07ms Time], IncrementalHoareTripleChecker [28 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 271.94ms Time] [2021-11-12 22:35:41,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-12 22:35:41,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 17. [2021-11-12 22:35:41,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.25) internal successors, (20), 16 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 22:35:41,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2021-11-12 22:35:41,516 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 8 [2021-11-12 22:35:41,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:35:41,516 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-11-12 22:35:41,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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 22:35:41,516 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2021-11-12 22:35:41,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-12 22:35:41,517 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:35:41,517 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2021-11-12 22:35:41,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:35:41,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:35:41,728 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:35:41,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:35:41,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1362146633, now seen corresponding path program 3 times [2021-11-12 22:35:41,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:35:41,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377888934] [2021-11-12 22:35:41,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:35:41,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:35:41,742 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 22:35:41,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1346002973] [2021-11-12 22:35:41,742 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 22:35:41,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:35:41,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:35:41,744 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:35:41,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-12 22:35:41,866 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 22:35:41,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:35:41,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-12 22:35:41,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:35:41,900 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 25 treesize of output 21 [2021-11-12 22:35:41,908 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-12 22:35:41,981 INFO L354 Elim1Store]: treesize reduction 126, result has 19.7 percent of original size [2021-11-12 22:35:41,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 92 treesize of output 108 [2021-11-12 22:35:42,023 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-12 22:35:42,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:42,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 36 [2021-11-12 22:35:42,114 INFO L354 Elim1Store]: treesize reduction 56, result has 23.3 percent of original size [2021-11-12 22:35:42,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 32 [2021-11-12 22:35:42,183 INFO L354 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2021-11-12 22:35:42,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 44 [2021-11-12 22:35:42,468 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:35:42,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:35:43,317 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:43,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 113 treesize of output 113 [2021-11-12 22:35:43,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 6 [2021-11-12 22:35:43,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 6 [2021-11-12 22:35:43,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 99 [2021-11-12 22:35:43,936 INFO L354 Elim1Store]: treesize reduction 39, result has 23.5 percent of original size [2021-11-12 22:35:43,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2224 treesize of output 2203 [2021-11-12 22:35:45,499 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:35:45,499 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:35:45,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377888934] [2021-11-12 22:35:45,500 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 22:35:45,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346002973] [2021-11-12 22:35:45,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346002973] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:35:45,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1515391356] [2021-11-12 22:35:45,503 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-12 22:35:45,503 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 22:35:45,503 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 22:35:45,503 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 22:35:45,504 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 22:35:45,513 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,514 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:45,515 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 22:35:45,518 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:45,518 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,519 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 22:35:45,521 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 22:35:45,525 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_18|], 21=[|v_#valid_19|]} [2021-11-12 22:35:45,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 22:35:45,540 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 22:35:45,542 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,542 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 22:35:45,544 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:45,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:45,549 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 22:35:45,576 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,578 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 22:35:45,579 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,580 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 22:35:45,580 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:45,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:45,585 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 22:35:45,590 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 22:35:45,590 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 22:35:45,597 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 22:35:45,598 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:45,599 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,600 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 22:35:45,601 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:45,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,602 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 22:35:45,605 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-11-12 22:35:45,608 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_19|], 15=[|v_#valid_20|]} [2021-11-12 22:35:45,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,629 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 22:35:45,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 22:35:45,630 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,632 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 22:35:45,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,634 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 22:35:45,634 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:45,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:45,642 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 22:35:45,661 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,664 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 22:35:45,665 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,665 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 22:35:45,666 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:45,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:45,673 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,675 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-11-12 22:35:45,679 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 22:35:45,679 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:135, output treesize:128 [2021-11-12 22:35:45,685 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,687 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:45,688 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,689 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 22:35:45,692 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size 141 [2021-11-12 22:35:45,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-12 22:35:45,707 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 22:35:45,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,710 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 22:35:45,710 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:45,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:45,718 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,721 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-11-12 22:35:45,724 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-11-12 22:35:45,725 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 22:35:45,725 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:142, output treesize:135 [2021-11-12 22:35:45,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:45,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:45,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:45,791 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,805 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:45,811 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,813 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:45,814 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,815 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:45,816 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,817 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-12 22:35:45,818 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:45,819 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 22:35:45,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-12 22:35:45,822 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:45,823 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-11-12 22:35:45,826 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:45,827 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,828 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:45,829 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,829 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 22:35:45,830 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:45,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,832 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 22:35:45,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-11-12 22:35:45,834 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:45,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-12 22:35:45,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 410 [2021-11-12 22:35:45,842 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:45,847 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,852 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 338 [2021-11-12 22:35:45,858 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 408 [2021-11-12 22:35:45,877 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-12 22:35:45,878 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,878 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:45,879 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,879 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:45,880 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:45,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 54 [2021-11-12 22:35:45,929 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,931 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 22:35:45,932 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,933 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 22:35:45,933 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:45,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:45,964 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 42 treesize of output 44 [2021-11-12 22:35:45,965 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,966 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 22:35:45,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,968 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 22:35:45,968 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:45,981 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-12 22:35:45,981 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,982 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:45,982 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:45,983 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:45,983 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:45,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:46,022 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:46,039 INFO L180 QuantifierPusher]: treesize reduction 108, result has 76.5 percent of original size [2021-11-12 22:35:46,045 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 352 [2021-11-12 22:35:46,046 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 22:35:46,047 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:939, output treesize:352 [2021-11-12 22:35:46,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:46,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:46,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:46,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:46,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:46,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:46,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:46,120 INFO L180 QuantifierPusher]: treesize reduction 42, result has 71.4 percent of original size [2021-11-12 22:35:46,123 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:46,123 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:46,124 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 22:35:46,125 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:46,125 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:46,126 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 22:35:46,128 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-11-12 22:35:46,138 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-12 22:35:46,138 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:46,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:46,140 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:46,140 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:46,140 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:46,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:46,144 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:46,149 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 25 treesize of output 21 [2021-11-12 22:35:46,150 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:46,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 22:35:46,151 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:46,152 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 22:35:46,152 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:46,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:46,155 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:46,157 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:46,158 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-11-12 22:35:46,159 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 22:35:46,159 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:163, output treesize:76 [2021-11-12 22:35:46,165 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 22:35:46,167 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 22:35:46,172 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 22:35:46,844 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 22:35:46,845 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:35:46,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-11-12 22:35:46,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69493386] [2021-11-12 22:35:46,845 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-12 22:35:46,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-12 22:35:46,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:35:46,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-12 22:35:46,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2021-11-12 22:35:46,847 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 15 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 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 22:35:49,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:35:49,750 INFO L93 Difference]: Finished difference Result 90 states and 101 transitions. [2021-11-12 22:35:49,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 22:35:49,751 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-12 22:35:49,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:35:49,753 INFO L225 Difference]: With dead ends: 90 [2021-11-12 22:35:49,754 INFO L226 Difference]: Without dead ends: 88 [2021-11-12 22:35:49,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=268, Invalid=854, Unknown=0, NotChecked=0, Total=1122 [2021-11-12 22:35:49,756 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 88 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1369.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.99ms SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1444.50ms IncrementalHoareTripleChecker+Time [2021-11-12 22:35:49,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 82 Invalid, 264 Unknown, 0 Unchecked, 4.99ms Time], IncrementalHoareTripleChecker [60 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 1444.50ms Time] [2021-11-12 22:35:49,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-12 22:35:49,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 27. [2021-11-12 22:35:49,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:35:49,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2021-11-12 22:35:49,767 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 10 [2021-11-12 22:35:49,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:35:49,768 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2021-11-12 22:35:49,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 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 22:35:49,769 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2021-11-12 22:35:49,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-12 22:35:49,769 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:35:49,770 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:35:49,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:35:49,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-11-12 22:35:49,996 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:35:49,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:35:49,996 INFO L85 PathProgramCache]: Analyzing trace with hash 262396842, now seen corresponding path program 1 times [2021-11-12 22:35:49,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:35:49,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3468791] [2021-11-12 22:35:49,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:35:49,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:35:50,018 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 22:35:50,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [256857137] [2021-11-12 22:35:50,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:35:50,018 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:35:50,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:35:50,021 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:35:50,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-12 22:35:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:35:50,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-12 22:35:50,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:35:50,134 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 13 treesize of output 9 [2021-11-12 22:35:50,157 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-12 22:35:50,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-12 22:35:50,271 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:35:50,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:35:50,659 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:50,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 81 treesize of output 81 [2021-11-12 22:35:50,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 6 [2021-11-12 22:35:50,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 6 [2021-11-12 22:35:50,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 67 [2021-11-12 22:35:51,332 INFO L354 Elim1Store]: treesize reduction 43, result has 21.8 percent of original size [2021-11-12 22:35:51,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 79 [2021-11-12 22:35:52,578 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:35:52,578 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:35:52,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3468791] [2021-11-12 22:35:52,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 22:35:52,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256857137] [2021-11-12 22:35:52,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256857137] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:35:52,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [565847011] [2021-11-12 22:35:52,583 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-12 22:35:52,583 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 22:35:52,583 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 22:35:52,584 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 22:35:52,584 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 22:35:52,590 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,591 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:52,592 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,592 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 22:35:52,593 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:52,593 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,594 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 22:35:52,595 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 22:35:52,598 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_21|], 21=[|v_#valid_22|]} [2021-11-12 22:35:52,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 22:35:52,612 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,612 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 22:35:52,613 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,614 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 22:35:52,614 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:52,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:52,619 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 22:35:52,641 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,644 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 22:35:52,645 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 22:35:52,646 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:52,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:52,651 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,652 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 22:35:52,655 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 22:35:52,655 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:127, output treesize:102 [2021-11-12 22:35:52,662 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.5 percent of original size [2021-11-12 22:35:52,663 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:52,664 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,665 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 22:35:52,665 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:52,666 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,666 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 22:35:52,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-11-12 22:35:52,672 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_22|], 15=[|v_#valid_23|]} [2021-11-12 22:35:52,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,696 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-12 22:35:52,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-12 22:35:52,697 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,699 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 22:35:52,700 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 22:35:52,701 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:52,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:52,708 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-12 22:35:52,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,730 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 22:35:52,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 22:35:52,731 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:52,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:52,738 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,740 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,742 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-11-12 22:35:52,743 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 22:35:52,743 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:135, output treesize:128 [2021-11-12 22:35:52,747 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,749 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:52,750 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 22:35:52,754 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size 141 [2021-11-12 22:35:52,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-12 22:35:52,772 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,774 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 22:35:52,775 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,775 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 22:35:52,776 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:52,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:52,803 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,806 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-11-12 22:35:52,808 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-11-12 22:35:52,809 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 22:35:52,810 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:142, output treesize:135 [2021-11-12 22:35:52,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:52,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:52,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:52,869 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,880 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:52,885 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,887 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:52,888 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,889 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:52,889 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-12 22:35:52,891 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:52,891 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,892 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 22:35:52,893 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-12 22:35:52,894 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:52,894 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,895 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-11-12 22:35:52,898 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:52,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,900 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:52,901 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 22:35:52,902 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:52,903 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,904 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 22:35:52,905 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-11-12 22:35:52,905 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:52,906 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,907 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-12 22:35:52,912 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 410 [2021-11-12 22:35:52,912 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:52,916 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 338 [2021-11-12 22:35:52,926 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 408 [2021-11-12 22:35:52,945 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-12 22:35:52,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:52,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:52,947 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:52,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:52,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 54 [2021-11-12 22:35:52,979 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,982 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 22:35:52,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:52,983 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 22:35:52,989 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:53,002 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-12 22:35:53,003 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:53,004 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:53,004 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:53,005 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:53,005 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:53,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:53,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:53,025 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 42 treesize of output 44 [2021-11-12 22:35:53,026 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:53,028 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 22:35:53,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:53,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 22:35:53,030 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:53,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:53,069 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:53,088 INFO L180 QuantifierPusher]: treesize reduction 108, result has 76.5 percent of original size [2021-11-12 22:35:53,095 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 352 [2021-11-12 22:35:53,096 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 22:35:53,097 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:939, output treesize:352 [2021-11-12 22:35:53,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:53,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:53,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:53,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:53,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:53,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:53,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:53,168 INFO L180 QuantifierPusher]: treesize reduction 42, result has 71.4 percent of original size [2021-11-12 22:35:53,170 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:53,171 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:53,171 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 22:35:53,172 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:35:53,172 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:53,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 22:35:53,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-11-12 22:35:53,185 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 25 treesize of output 21 [2021-11-12 22:35:53,186 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:53,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 22:35:53,187 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:53,187 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 22:35:53,187 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:53,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:53,194 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:53,201 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-12 22:35:53,202 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:53,202 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:53,203 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:53,203 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 22:35:53,204 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 22:35:53,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:53,207 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:53,208 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:53,209 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-11-12 22:35:53,210 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 22:35:53,210 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:163, output treesize:76 [2021-11-12 22:35:53,216 INFO L180 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-11-12 22:35:53,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 22:35:53,222 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:35:53,225 INFO L185 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size 74 [2021-11-12 22:35:53,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:53,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:53,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:53,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:53,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:53,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:35:53,253 INFO L180 QuantifierPusher]: treesize reduction 42, result has 74.1 percent of original size [2021-11-12 22:35:53,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-11-12 22:35:53,270 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 22:35:54,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 22:35:54,247 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:35:54,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-11-12 22:35:54,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847909476] [2021-11-12 22:35:54,247 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-12 22:35:54,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-12 22:35:54,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:35:54,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-12 22:35:54,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2021-11-12 22:35:54,256 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 15 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 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 22:35:55,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:35:55,138 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2021-11-12 22:35:55,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-12 22:35:55,139 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 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 12 [2021-11-12 22:35:55,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:35:55,141 INFO L225 Difference]: With dead ends: 81 [2021-11-12 22:35:55,141 INFO L226 Difference]: Without dead ends: 79 [2021-11-12 22:35:55,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=152, Invalid=660, Unknown=0, NotChecked=0, Total=812 [2021-11-12 22:35:55,143 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 62 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 416.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.57ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 458.76ms IncrementalHoareTripleChecker+Time [2021-11-12 22:35:55,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 93 Invalid, 224 Unknown, 0 Unchecked, 2.57ms Time], IncrementalHoareTripleChecker [34 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 458.76ms Time] [2021-11-12 22:35:55,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-12 22:35:55,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 27. [2021-11-12 22:35:55,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:35:55,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2021-11-12 22:35:55,154 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 12 [2021-11-12 22:35:55,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:35:55,155 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2021-11-12 22:35:55,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 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 22:35:55,155 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2021-11-12 22:35:55,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-12 22:35:55,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:35:55,156 INFO L514 BasicCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1] [2021-11-12 22:35:55,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:35:55,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-11-12 22:35:55,368 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:35:55,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:35:55,368 INFO L85 PathProgramCache]: Analyzing trace with hash -547871113, now seen corresponding path program 4 times [2021-11-12 22:35:55,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:35:55,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583693565] [2021-11-12 22:35:55,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:35:55,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:35:55,392 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 22:35:55,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [217192136] [2021-11-12 22:35:55,392 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 22:35:55,393 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:35:55,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:35:55,398 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:35:55,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c428b-e1da-45ef-b3f7-ec009f1b941e/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-12 22:35:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:35:56,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-12 22:35:56,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:35:56,104 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 25 treesize of output 21 [2021-11-12 22:35:56,113 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-12 22:35:56,148 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-12 22:35:56,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-12 22:35:56,224 INFO L354 Elim1Store]: treesize reduction 178, result has 15.6 percent of original size [2021-11-12 22:35:56,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 85 treesize of output 105 [2021-11-12 22:35:56,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 22 [2021-11-12 22:35:56,364 INFO L354 Elim1Store]: treesize reduction 338, result has 15.7 percent of original size [2021-11-12 22:35:56,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 108 treesize of output 146 [2021-11-12 22:35:56,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 35 [2021-11-12 22:35:56,528 INFO L354 Elim1Store]: treesize reduction 164, result has 17.6 percent of original size [2021-11-12 22:35:56,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 48 treesize of output 56 [2021-11-12 22:35:56,771 INFO L354 Elim1Store]: treesize reduction 550, result has 13.7 percent of original size [2021-11-12 22:35:56,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 112 treesize of output 168 [2021-11-12 22:35:56,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:35:56,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 35 [2021-11-12 22:35:57,051 INFO L354 Elim1Store]: treesize reduction 320, result has 14.2 percent of original size [2021-11-12 22:35:57,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 66 treesize of output 80 [2021-11-12 22:35:57,277 INFO L354 Elim1Store]: treesize reduction 416, result has 13.0 percent of original size [2021-11-12 22:35:57,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 75 treesize of output 92 [2021-11-12 22:35:57,849 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:35:57,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:36:00,812 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:36:00,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 181 treesize of output 181 [2021-11-12 22:36:01,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 6 [2021-11-12 22:36:01,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 6 [2021-11-12 22:36:02,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 167 [2021-11-12 22:36:02,845 INFO L354 Elim1Store]: treesize reduction 39, result has 23.5 percent of original size [2021-11-12 22:36:02,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 293339152 treesize of output 293208075