/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.6.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 17:45:25,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 17:45:25,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 17:45:25,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 17:45:25,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 17:45:25,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 17:45:25,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 17:45:25,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 17:45:25,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 17:45:25,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 17:45:25,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 17:45:25,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 17:45:25,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 17:45:25,850 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 17:45:25,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 17:45:25,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 17:45:25,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 17:45:25,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 17:45:25,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 17:45:25,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 17:45:25,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 17:45:25,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 17:45:25,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 17:45:25,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 17:45:25,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 17:45:25,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 17:45:25,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 17:45:25,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 17:45:25,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 17:45:25,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 17:45:25,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 17:45:25,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 17:45:25,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 17:45:25,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 17:45:25,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 17:45:25,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 17:45:25,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 17:45:25,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 17:45:25,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 17:45:25,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 17:45:25,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 17:45:25,917 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 17:45:25,982 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 17:45:25,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 17:45:25,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 17:45:25,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 17:45:25,988 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 17:45:25,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 17:45:25,988 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 17:45:25,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 17:45:25,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 17:45:25,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 17:45:25,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 17:45:25,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 17:45:25,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 17:45:25,991 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 17:45:25,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 17:45:25,991 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 17:45:25,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 17:45:25,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 17:45:25,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 17:45:25,992 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 17:45:25,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 17:45:25,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 17:45:25,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 17:45:25,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 17:45:25,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 17:45:25,993 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 17:45:25,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 17:45:25,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 17:45:25,994 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 17:45:25,994 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 17:45:26,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 17:45:26,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 17:45:26,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 17:45:26,482 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 17:45:26,483 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 17:45:26,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.6.1.ufo.UNBOUNDED.pals.c [2020-10-28 17:45:26,561 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a834cb57a/a5140e79d5364e8aab0e1d307f15fb53/FLAGfe3d26f75 [2020-10-28 17:45:27,326 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 17:45:27,327 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.6.1.ufo.UNBOUNDED.pals.c [2020-10-28 17:45:27,348 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a834cb57a/a5140e79d5364e8aab0e1d307f15fb53/FLAGfe3d26f75 [2020-10-28 17:45:27,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a834cb57a/a5140e79d5364e8aab0e1d307f15fb53 [2020-10-28 17:45:27,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 17:45:27,619 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 17:45:27,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 17:45:27,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 17:45:27,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 17:45:27,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:45:27" (1/1) ... [2020-10-28 17:45:27,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac6a7a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:45:27, skipping insertion in model container [2020-10-28 17:45:27,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:45:27" (1/1) ... [2020-10-28 17:45:27,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 17:45:27,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 17:45:28,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:45:28,043 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 17:45:28,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:45:28,180 INFO L208 MainTranslator]: Completed translation [2020-10-28 17:45:28,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:45:28 WrapperNode [2020-10-28 17:45:28,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 17:45:28,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 17:45:28,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 17:45:28,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 17:45:28,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:45:28" (1/1) ... [2020-10-28 17:45:28,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:45:28" (1/1) ... [2020-10-28 17:45:28,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:45:28" (1/1) ... [2020-10-28 17:45:28,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:45:28" (1/1) ... [2020-10-28 17:45:28,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:45:28" (1/1) ... [2020-10-28 17:45:28,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:45:28" (1/1) ... [2020-10-28 17:45:28,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:45:28" (1/1) ... [2020-10-28 17:45:28,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 17:45:28,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 17:45:28,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 17:45:28,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 17:45:28,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:45:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 17:45:28,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 17:45:28,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 17:45:28,415 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 17:45:28,415 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 17:45:28,416 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-28 17:45:28,416 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-28 17:45:28,416 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-28 17:45:28,416 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-28 17:45:28,416 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-28 17:45:28,417 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-28 17:45:28,417 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-28 17:45:28,417 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-28 17:45:28,417 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 17:45:28,417 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-28 17:45:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 17:45:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 17:45:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 17:45:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 17:45:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 17:45:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 17:45:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-28 17:45:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-28 17:45:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 17:45:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-28 17:45:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-28 17:45:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-28 17:45:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-28 17:45:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-28 17:45:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-28 17:45:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-28 17:45:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-28 17:45:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-28 17:45:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-28 17:45:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 17:45:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 17:45:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 17:45:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 17:45:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 17:45:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 17:45:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 17:45:29,325 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 17:45:29,325 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 17:45:29,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:45:29 BoogieIcfgContainer [2020-10-28 17:45:29,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 17:45:29,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 17:45:29,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 17:45:29,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 17:45:29,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 05:45:27" (1/3) ... [2020-10-28 17:45:29,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48aaed00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:45:29, skipping insertion in model container [2020-10-28 17:45:29,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:45:28" (2/3) ... [2020-10-28 17:45:29,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48aaed00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:45:29, skipping insertion in model container [2020-10-28 17:45:29,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:45:29" (3/3) ... [2020-10-28 17:45:29,337 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c [2020-10-28 17:45:29,349 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 17:45:29,354 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 17:45:29,367 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 17:45:29,408 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 17:45:29,408 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 17:45:29,408 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 17:45:29,408 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 17:45:29,408 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 17:45:29,408 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 17:45:29,409 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 17:45:29,409 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 17:45:29,429 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2020-10-28 17:45:29,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-28 17:45:29,440 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:45:29,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:45:29,442 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:45:29,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:45:29,448 INFO L82 PathProgramCache]: Analyzing trace with hash 822860859, now seen corresponding path program 1 times [2020-10-28 17:45:29,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:45:29,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [386296583] [2020-10-28 17:45:29,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:45:29,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:29,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:30,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:30,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 17:45:30,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:30,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 589 [2020-10-28 17:45:30,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:30,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:30,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:30,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-28 17:45:30,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:30,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:45:30,993 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 17:45:30,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:45:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:31,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:31,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:31,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:45:31,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:31,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 17:45:31,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:31,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:31,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:31,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:31,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:31,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:31,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:45:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:31,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:31,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:31,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:45:31,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:31,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:45:31,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:31,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:31,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:31,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:31,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:31,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:31,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 17:45:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:31,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:31,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:31,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:45:31,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:31,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:45:31,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:31,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:31,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:31,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 17:45:31,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:31,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:31,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 17:45:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:31,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:31,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:31,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:31,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:31,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:45:31,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:31,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:31,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:31,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:45:31,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:31,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:31,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-28 17:45:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:31,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:31,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:31,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:31,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:31,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:45:31,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:31,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:31,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:31,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:45:31,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:31,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:31,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 17:45:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:31,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:31,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:31,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:31,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:31,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:45:31,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:31,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:31,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:31,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:45:31,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:31,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:31,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 17:45:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:31,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:31,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:31,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:31,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:31,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:45:31,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:31,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:31,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:31,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:45:31,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:31,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:31,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 17:45:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:31,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:31,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:31,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:31,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:31,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:45:31,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:31,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:31,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:31,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:45:31,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:31,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:31,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-28 17:45:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:31,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:31,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:31,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:31,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:31,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:45:31,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:31,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:31,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:31,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:45:31,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:31,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:31,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-28 17:45:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:31,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:31,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:31,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:45:31,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:31,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:45:31,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:31,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:31,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:31,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:45:31,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:31,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:31,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:45:31,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [386296583] [2020-10-28 17:45:31,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:45:31,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 17:45:31,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513761180] [2020-10-28 17:45:31,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 17:45:31,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:45:31,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 17:45:31,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:45:31,551 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 9 states. [2020-10-28 17:45:32,059 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-28 17:45:32,391 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-28 17:45:32,760 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-28 17:45:33,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:45:33,633 INFO L93 Difference]: Finished difference Result 248 states and 368 transitions. [2020-10-28 17:45:33,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 17:45:33,635 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2020-10-28 17:45:33,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:45:33,646 INFO L225 Difference]: With dead ends: 248 [2020-10-28 17:45:33,647 INFO L226 Difference]: Without dead ends: 148 [2020-10-28 17:45:33,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-28 17:45:33,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-28 17:45:33,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 147. [2020-10-28 17:45:33,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-28 17:45:33,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 223 transitions. [2020-10-28 17:45:33,721 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 223 transitions. Word has length 75 [2020-10-28 17:45:33,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:45:33,721 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 223 transitions. [2020-10-28 17:45:33,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 17:45:33,722 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 223 transitions. [2020-10-28 17:45:33,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-28 17:45:33,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:45:33,726 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:45:33,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 17:45:33,726 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:45:33,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:45:33,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1024684793, now seen corresponding path program 1 times [2020-10-28 17:45:33,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:45:33,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1721493191] [2020-10-28 17:45:33,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:45:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:33,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:34,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:34,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 17:45:34,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:34,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 850 [2020-10-28 17:45:34,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:34,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:34,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:45:34,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 17:45:34,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:45:34,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:35,007 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 17:45:35,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:45:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:35,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:35,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:35,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:45:35,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:35,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 17:45:35,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:35,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:35,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:35,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:35,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:35,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:35,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:45:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:35,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:35,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:35,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:45:35,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:35,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 17:45:35,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:35,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:35,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:45:35,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:35,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:45:35,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:35,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 17:45:35,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:35,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:35,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:35,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:45:35,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:35,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:45:35,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:35,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:35,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:45:35,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:45:35,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:45:35,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:35,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 17:45:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:35,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:35,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:35,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:35,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:35,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:45:35,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:35,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:35,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:35,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:45:35,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:35,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:35,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-28 17:45:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:35,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:35,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:35,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:35,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:35,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:45:35,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:35,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:35,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:35,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:45:35,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:35,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:35,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 17:45:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:35,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:35,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:35,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:35,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:35,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:45:35,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:35,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:35,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:35,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:45:35,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:35,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:35,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 17:45:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:35,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:35,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:35,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:35,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:35,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:45:35,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:35,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:35,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:35,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:45:35,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:35,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:35,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 17:45:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:35,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:35,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:35,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:35,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:35,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:45:35,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:35,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:35,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:35,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:45:35,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:35,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:35,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-28 17:45:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:35,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:35,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:35,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:35,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:35,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:45:35,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:35,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:35,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:35,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:45:35,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:35,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:35,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-28 17:45:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:35,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:35,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:35,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:45:35,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:35,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:45:35,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:35,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:35,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:35,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:45:35,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:35,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:35,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:45:35,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1721493191] [2020-10-28 17:45:35,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:45:35,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-28 17:45:35,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258271769] [2020-10-28 17:45:35,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-28 17:45:35,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:45:35,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-28 17:45:35,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-28 17:45:35,475 INFO L87 Difference]: Start difference. First operand 147 states and 223 transitions. Second operand 15 states. [2020-10-28 17:45:35,805 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-28 17:45:36,085 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-28 17:45:36,529 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:45:36,834 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-28 17:45:38,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:45:38,872 INFO L93 Difference]: Finished difference Result 243 states and 356 transitions. [2020-10-28 17:45:38,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 17:45:38,873 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 75 [2020-10-28 17:45:38,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:45:38,879 INFO L225 Difference]: With dead ends: 243 [2020-10-28 17:45:38,879 INFO L226 Difference]: Without dead ends: 148 [2020-10-28 17:45:38,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2020-10-28 17:45:38,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-28 17:45:38,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 147. [2020-10-28 17:45:38,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-28 17:45:38,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 183 transitions. [2020-10-28 17:45:38,936 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 183 transitions. Word has length 75 [2020-10-28 17:45:38,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:45:38,936 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 183 transitions. [2020-10-28 17:45:38,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-28 17:45:38,936 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 183 transitions. [2020-10-28 17:45:38,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-28 17:45:38,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:45:38,943 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:45:38,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 17:45:38,946 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:45:38,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:45:38,947 INFO L82 PathProgramCache]: Analyzing trace with hash 272098825, now seen corresponding path program 1 times [2020-10-28 17:45:38,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:45:38,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1086831381] [2020-10-28 17:45:38,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:45:39,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:39,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:39,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:39,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:39,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:40,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:44,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:44,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-28 17:45:44,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:45:44,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-28 17:45:44,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:44,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:44,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:45:44,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-28 17:45:44,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 17:45:44,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:45:44,293 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 17:45:44,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:45:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:44,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:44,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:44,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:45:44,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:44,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:45:44,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:44,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:44,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:44,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:44,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:44,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:44,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:45:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:44,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:44,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:44,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:45:44,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:44,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 17:45:44,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:44,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:44,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:44,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:44,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:45:44,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:44,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 17:45:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:44,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:44,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:44,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:45:44,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:44,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:45:44,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:44,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:44,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:44,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:44,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:45:44,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:44,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 17:45:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:44,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:44,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:44,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:44,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:44,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:45:44,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:44,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:44,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:44,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:44,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:45:44,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:44,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 17:45:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:44,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:44,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:44,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:44,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:44,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:45:44,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:44,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:44,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:44,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:44,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:45:44,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:44,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-28 17:45:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:44,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:44,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:44,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:44,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:44,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:45:44,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:44,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:45:44,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:44,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 17:45:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:44,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:44,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:44,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:44,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:44,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:45:44,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:44,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:44,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:44,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:44,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:45:44,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:44,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 17:45:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:44,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:44,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:44,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:44,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:44,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:45:44,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:44,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:44,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:45:44,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:45:44,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:45:44,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:44,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-28 17:45:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:44,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:44,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:44,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:44,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:44,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:45:44,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:44,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:44,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:44,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:45:44,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:44,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:44,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:45:44,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:44,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:44,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:44,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:45:44,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:44,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:45:44,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:44,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:44,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:44,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:45:44,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:44,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:44,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:45:44,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1086831381] [2020-10-28 17:45:44,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:45:44,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 17:45:44,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268874309] [2020-10-28 17:45:44,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 17:45:44,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:45:44,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 17:45:44,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-28 17:45:44,715 INFO L87 Difference]: Start difference. First operand 147 states and 183 transitions. Second operand 12 states. [2020-10-28 17:45:45,017 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-28 17:45:48,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:45:48,103 INFO L93 Difference]: Finished difference Result 321 states and 427 transitions. [2020-10-28 17:45:48,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:45:48,104 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 114 [2020-10-28 17:45:48,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:45:48,109 INFO L225 Difference]: With dead ends: 321 [2020-10-28 17:45:48,109 INFO L226 Difference]: Without dead ends: 232 [2020-10-28 17:45:48,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2020-10-28 17:45:48,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-28 17:45:48,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 227. [2020-10-28 17:45:48,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-10-28 17:45:48,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 296 transitions. [2020-10-28 17:45:48,191 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 296 transitions. Word has length 114 [2020-10-28 17:45:48,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:45:48,192 INFO L481 AbstractCegarLoop]: Abstraction has 227 states and 296 transitions. [2020-10-28 17:45:48,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 17:45:48,192 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 296 transitions. [2020-10-28 17:45:48,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-28 17:45:48,202 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:45:48,202 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:45:48,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 17:45:48,203 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:45:48,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:45:48,204 INFO L82 PathProgramCache]: Analyzing trace with hash -473483905, now seen corresponding path program 1 times [2020-10-28 17:45:48,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:45:48,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674531408] [2020-10-28 17:45:48,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:45:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:48,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:48,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:48,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:48,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:51,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:53,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:53,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-28 17:45:53,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:45:53,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-28 17:45:53,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:53,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:53,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:45:53,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-28 17:45:53,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 17:45:53,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:53,581 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 17:45:53,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:45:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:53,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:53,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:53,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:45:53,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:53,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:45:53,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:53,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:53,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:53,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:53,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:53,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:53,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:45:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:53,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:53,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:53,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:45:53,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:53,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 17:45:53,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:53,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:53,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:53,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:53,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-28 17:45:53,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:53,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 17:45:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:53,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:53,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:53,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:45:53,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:53,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:45:53,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:53,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:53,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:53,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:53,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:45:53,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:53,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 17:45:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:53,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:53,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:53,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:53,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:53,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:45:53,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:53,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:53,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:53,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:53,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:45:53,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:53,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 17:45:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:53,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:53,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:53,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:53,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:53,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:45:53,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:53,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:53,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:53,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:53,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:45:53,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:53,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-28 17:45:53,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:53,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:53,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:53,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:53,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:53,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:45:53,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:53,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:53,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:53,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:53,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:45:53,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:53,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 17:45:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:53,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:53,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:53,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:53,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:53,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:45:53,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:53,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:53,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:53,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:53,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:45:53,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:53,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 17:45:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:53,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:53,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:53,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:53,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:53,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:45:53,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:53,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:53,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:45:53,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:45:53,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:45:53,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:45:53,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-28 17:45:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:53,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:53,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:53,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:45:53,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:53,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:45:53,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:53,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:53,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:45:53,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:45:53,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:45:53,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:53,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:45:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:53,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:53,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:45:53,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:45:53,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:45:53,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:45:53,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:45:53,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:45:53,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:45:53,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:45:53,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:45:53,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:45:54,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:45:54,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674531408] [2020-10-28 17:45:54,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:45:54,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 17:45:54,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147968785] [2020-10-28 17:45:54,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 17:45:54,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:45:54,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 17:45:54,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-28 17:45:54,014 INFO L87 Difference]: Start difference. First operand 227 states and 296 transitions. Second operand 12 states. [2020-10-28 17:45:54,319 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-28 17:45:57,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:45:57,088 INFO L93 Difference]: Finished difference Result 557 states and 760 transitions. [2020-10-28 17:45:57,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:45:57,091 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 114 [2020-10-28 17:45:57,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:45:57,095 INFO L225 Difference]: With dead ends: 557 [2020-10-28 17:45:57,096 INFO L226 Difference]: Without dead ends: 388 [2020-10-28 17:45:57,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2020-10-28 17:45:57,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-10-28 17:45:57,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 381. [2020-10-28 17:45:57,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-10-28 17:45:57,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 512 transitions. [2020-10-28 17:45:57,162 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 512 transitions. Word has length 114 [2020-10-28 17:45:57,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:45:57,163 INFO L481 AbstractCegarLoop]: Abstraction has 381 states and 512 transitions. [2020-10-28 17:45:57,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 17:45:57,163 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 512 transitions. [2020-10-28 17:45:57,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-28 17:45:57,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:45:57,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:45:57,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 17:45:57,165 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:45:57,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:45:57,166 INFO L82 PathProgramCache]: Analyzing trace with hash 54950603, now seen corresponding path program 1 times [2020-10-28 17:45:57,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:45:57,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [22086326] [2020-10-28 17:45:57,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:45:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:45:57,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:57,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:57,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:57,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:45:59,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:02,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:02,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-28 17:46:02,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:46:02,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 17:46:02,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:02,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:02,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:02,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-28 17:46:02,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:46:02,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:02,496 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 17:46:02,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:46:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:02,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:02,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:02,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:46:02,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:02,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 17:46:02,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:02,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:02,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:02,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:02,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:02,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:02,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:46:02,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:02,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:02,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:02,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:46:02,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:02,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 17:46:02,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:02,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:02,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:02,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:02,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 17:46:02,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:02,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 17:46:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:02,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:02,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:02,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:46:02,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:02,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:46:02,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:02,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:02,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:02,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:02,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:46:02,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 17:46:02,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 17:46:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:02,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:02,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:02,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:02,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:02,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:46:02,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:02,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:02,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:02,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:02,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:02,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:02,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 17:46:02,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:02,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:02,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:02,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:02,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:02,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:46:02,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:02,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:02,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:02,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:02,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-28 17:46:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:02,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:02,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:02,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:02,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:02,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:46:02,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:02,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:02,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:02,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:02,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:02,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:02,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 17:46:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:02,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:02,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:02,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:02,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:02,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:46:02,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:02,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:02,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:02,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:46:02,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:46:02,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:02,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 17:46:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:02,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:02,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:02,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:02,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:02,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:46:02,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:02,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:02,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:02,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:02,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:02,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:02,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-28 17:46:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:02,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:02,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:02,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:02,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:02,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:46:02,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:02,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:02,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:02,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:02,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:02,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:02,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:46:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:02,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:02,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:02,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:46:02,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:02,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:46:02,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:02,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:02,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:02,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:46:02,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:02,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:02,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:46:02,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [22086326] [2020-10-28 17:46:02,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:46:02,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 17:46:02,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741267040] [2020-10-28 17:46:02,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 17:46:02,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:46:02,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 17:46:02,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-28 17:46:02,984 INFO L87 Difference]: Start difference. First operand 381 states and 512 transitions. Second operand 12 states. [2020-10-28 17:46:03,301 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-28 17:46:05,402 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:46:06,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:46:06,141 INFO L93 Difference]: Finished difference Result 1011 states and 1396 transitions. [2020-10-28 17:46:06,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:46:06,148 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 114 [2020-10-28 17:46:06,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:46:06,153 INFO L225 Difference]: With dead ends: 1011 [2020-10-28 17:46:06,154 INFO L226 Difference]: Without dead ends: 688 [2020-10-28 17:46:06,156 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2020-10-28 17:46:06,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2020-10-28 17:46:06,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 677. [2020-10-28 17:46:06,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 677 states. [2020-10-28 17:46:06,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 924 transitions. [2020-10-28 17:46:06,229 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 924 transitions. Word has length 114 [2020-10-28 17:46:06,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:46:06,229 INFO L481 AbstractCegarLoop]: Abstraction has 677 states and 924 transitions. [2020-10-28 17:46:06,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 17:46:06,230 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 924 transitions. [2020-10-28 17:46:06,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-28 17:46:06,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:46:06,231 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:46:06,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 17:46:06,232 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:46:06,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:46:06,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1065024149, now seen corresponding path program 1 times [2020-10-28 17:46:06,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:46:06,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440998702] [2020-10-28 17:46:06,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:46:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:06,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:06,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:06,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:07,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:11,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:11,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-28 17:46:11,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 17:46:11,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-28 17:46:11,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:11,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:11,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:11,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-28 17:46:11,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-28 17:46:11,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:11,557 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 17:46:11,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:46:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:11,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:11,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:11,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:46:11,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:11,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:46:11,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:11,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:11,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:11,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:11,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:11,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:11,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:46:11,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:11,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:11,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:11,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:46:11,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:11,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:46:11,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:11,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:11,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:11,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:11,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:46:11,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:11,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 17:46:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:11,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:11,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:11,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:46:11,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:11,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:46:11,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:11,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:11,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:11,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:11,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:46:11,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:11,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 17:46:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:11,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:11,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:11,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:11,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:11,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:46:11,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:11,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:11,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:11,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:11,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:11,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:11,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 17:46:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:11,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:11,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:11,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:11,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:11,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:46:11,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:11,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:11,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:11,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:11,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:11,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:11,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-28 17:46:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:11,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:11,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:11,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:11,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:11,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:46:11,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:11,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:11,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:11,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:46:11,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:46:11,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:11,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 17:46:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:11,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:11,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:11,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:11,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:11,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:46:11,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:11,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:11,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:11,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:11,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:11,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:11,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 17:46:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:11,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:11,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:11,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:11,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:11,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:46:11,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:11,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:11,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:11,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:11,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:11,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:11,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-28 17:46:11,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:11,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:11,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:11,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:11,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:11,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:46:11,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:11,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:11,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:11,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:11,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:11,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:11,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:46:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:11,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:11,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:11,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:46:11,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:11,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:46:11,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:11,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:46:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:11,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:11,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:46:11,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440998702] [2020-10-28 17:46:11,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:46:11,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 17:46:11,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078732914] [2020-10-28 17:46:11,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 17:46:11,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:46:11,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 17:46:11,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-28 17:46:11,919 INFO L87 Difference]: Start difference. First operand 677 states and 924 transitions. Second operand 12 states. [2020-10-28 17:46:12,218 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-28 17:46:15,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:46:15,356 INFO L93 Difference]: Finished difference Result 1883 states and 2608 transitions. [2020-10-28 17:46:15,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:46:15,360 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 114 [2020-10-28 17:46:15,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:46:15,369 INFO L225 Difference]: With dead ends: 1883 [2020-10-28 17:46:15,369 INFO L226 Difference]: Without dead ends: 1264 [2020-10-28 17:46:15,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2020-10-28 17:46:15,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2020-10-28 17:46:15,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1245. [2020-10-28 17:46:15,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1245 states. [2020-10-28 17:46:15,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1708 transitions. [2020-10-28 17:46:15,509 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1708 transitions. Word has length 114 [2020-10-28 17:46:15,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:46:15,510 INFO L481 AbstractCegarLoop]: Abstraction has 1245 states and 1708 transitions. [2020-10-28 17:46:15,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 17:46:15,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1708 transitions. [2020-10-28 17:46:15,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-28 17:46:15,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:46:15,511 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:46:15,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 17:46:15,512 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:46:15,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:46:15,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1303839627, now seen corresponding path program 1 times [2020-10-28 17:46:15,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:46:15,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384652489] [2020-10-28 17:46:15,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:46:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:15,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:15,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:15,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:20,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:20,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-28 17:46:20,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:46:20,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 17:46:20,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:20,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:20,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:20,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-28 17:46:20,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-28 17:46:20,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:20,855 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 17:46:20,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:46:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:20,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:20,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:20,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:46:20,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:20,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:46:20,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:20,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:20,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:20,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:20,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:20,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:20,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:46:20,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:20,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:20,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:20,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:46:20,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:20,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 17:46:20,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:20,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:20,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:20,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:20,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:46:20,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:20,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 17:46:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:20,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:20,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:20,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:46:20,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:20,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:46:20,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:20,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:20,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:20,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:20,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:46:20,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:46:20,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 17:46:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:20,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:20,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:20,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:20,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:20,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:46:20,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:20,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:20,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:20,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:20,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:20,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:20,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 17:46:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:21,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:21,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:21,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:21,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:21,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:46:21,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:21,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:21,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:21,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:46:21,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:46:21,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:21,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-28 17:46:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:21,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:21,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:21,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:21,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:21,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:46:21,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:21,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:21,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:21,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:21,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:21,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:21,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 17:46:21,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:21,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:21,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:21,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:21,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:21,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:46:21,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:21,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:21,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:21,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:21,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:21,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:21,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 17:46:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:21,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:21,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:21,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:21,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:21,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:46:21,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:21,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:21,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:21,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:21,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:21,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:21,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-28 17:46:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:21,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:21,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:21,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:21,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:21,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:46:21,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:21,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:21,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:21,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 17:46:21,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:21,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:21,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:46:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:21,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:21,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:21,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:46:21,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:21,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:46:21,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:21,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:21,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:21,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:46:21,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:21,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:21,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:46:21,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384652489] [2020-10-28 17:46:21,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:46:21,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 17:46:21,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704939091] [2020-10-28 17:46:21,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 17:46:21,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:46:21,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 17:46:21,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-28 17:46:21,226 INFO L87 Difference]: Start difference. First operand 1245 states and 1708 transitions. Second operand 12 states. [2020-10-28 17:46:21,517 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-28 17:46:21,982 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-28 17:46:24,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:46:24,843 INFO L93 Difference]: Finished difference Result 3555 states and 4912 transitions. [2020-10-28 17:46:24,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:46:24,844 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 114 [2020-10-28 17:46:24,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:46:24,858 INFO L225 Difference]: With dead ends: 3555 [2020-10-28 17:46:24,858 INFO L226 Difference]: Without dead ends: 2368 [2020-10-28 17:46:24,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2020-10-28 17:46:24,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2020-10-28 17:46:25,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 2333. [2020-10-28 17:46:25,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2333 states. [2020-10-28 17:46:25,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 3196 transitions. [2020-10-28 17:46:25,126 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 3196 transitions. Word has length 114 [2020-10-28 17:46:25,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:46:25,126 INFO L481 AbstractCegarLoop]: Abstraction has 2333 states and 3196 transitions. [2020-10-28 17:46:25,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 17:46:25,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 3196 transitions. [2020-10-28 17:46:25,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-28 17:46:25,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:46:25,128 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:46:25,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 17:46:25,129 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:46:25,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:46:25,130 INFO L82 PathProgramCache]: Analyzing trace with hash -540861995, now seen corresponding path program 1 times [2020-10-28 17:46:25,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:46:25,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965551789] [2020-10-28 17:46:25,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:46:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:25,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:25,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:29,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:29,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-28 17:46:29,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:46:29,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4274 [2020-10-28 17:46:29,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:29,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:29,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:46:29,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 17:46:29,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-28 17:46:29,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:29,760 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 17:46:29,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:46:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:29,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:29,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:29,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:46:29,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:29,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 17:46:29,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:29,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:29,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:29,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:29,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 17:46:29,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:29,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:46:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:29,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:29,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:29,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:46:29,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:29,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 17:46:29,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:29,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-28 17:46:29,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:29,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 17:46:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:29,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:29,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:29,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:46:29,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:29,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:46:29,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:29,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:29,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:29,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:29,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:46:29,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:29,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 17:46:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:29,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:29,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:29,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:29,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:29,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:46:29,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:29,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:29,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:29,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:29,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:29,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:29,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 17:46:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:29,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:29,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:29,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:29,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:29,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:46:29,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:29,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:29,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:29,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:29,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:29,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:30,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-28 17:46:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:30,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:30,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:30,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:30,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:30,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:46:30,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:30,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:30,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:30,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:30,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:30,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:30,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 17:46:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:30,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:30,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:30,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:30,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:30,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:46:30,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:30,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:30,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:30,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:30,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:30,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:30,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 17:46:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:30,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:30,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:30,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:30,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:30,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:46:30,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:30,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:30,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:30,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:30,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:46:30,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:30,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-28 17:46:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:30,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:30,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:30,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:30,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:30,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:46:30,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:30,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:30,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:30,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:46:30,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:46:30,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:30,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:46:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:30,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:30,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:30,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:46:30,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:30,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:46:30,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:30,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:30,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:30,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:46:30,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:30,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:30,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:46:30,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [965551789] [2020-10-28 17:46:30,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:46:30,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-28 17:46:30,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971915500] [2020-10-28 17:46:30,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-28 17:46:30,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:46:30,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-28 17:46:30,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-28 17:46:30,250 INFO L87 Difference]: Start difference. First operand 2333 states and 3196 transitions. Second operand 16 states. [2020-10-28 17:46:30,887 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 175 [2020-10-28 17:46:31,186 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-28 17:46:31,651 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-28 17:46:32,418 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 176 [2020-10-28 17:46:32,656 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-28 17:46:32,969 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-28 17:46:33,236 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-28 17:46:33,509 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-28 17:46:33,772 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-28 17:46:34,030 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-28 17:46:34,710 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-28 17:46:34,960 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-28 17:46:35,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:46:35,272 INFO L93 Difference]: Finished difference Result 4688 states and 6446 transitions. [2020-10-28 17:46:35,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:46:35,273 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 114 [2020-10-28 17:46:35,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:46:35,289 INFO L225 Difference]: With dead ends: 4688 [2020-10-28 17:46:35,289 INFO L226 Difference]: Without dead ends: 2413 [2020-10-28 17:46:35,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=241, Invalid=629, Unknown=0, NotChecked=0, Total=870 [2020-10-28 17:46:35,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2020-10-28 17:46:35,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 2333. [2020-10-28 17:46:35,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2333 states. [2020-10-28 17:46:35,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 3180 transitions. [2020-10-28 17:46:35,588 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 3180 transitions. Word has length 114 [2020-10-28 17:46:35,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:46:35,589 INFO L481 AbstractCegarLoop]: Abstraction has 2333 states and 3180 transitions. [2020-10-28 17:46:35,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-28 17:46:35,589 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 3180 transitions. [2020-10-28 17:46:35,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-28 17:46:35,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:46:35,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:46:35,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 17:46:35,590 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:46:35,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:46:35,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1047485907, now seen corresponding path program 1 times [2020-10-28 17:46:35,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:46:35,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979903771] [2020-10-28 17:46:35,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:46:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:35,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:36,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:36,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-28 17:46:36,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:36,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 822 [2020-10-28 17:46:36,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:36,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:36,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:46:36,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 17:46:36,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-28 17:46:36,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:36,750 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 17:46:36,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:46:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:36,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:36,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:36,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:46:36,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:36,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:46:36,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:36,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:46:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:46:36,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:36,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:46:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:36,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:36,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:36,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:46:36,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:36,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 17:46:36,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:36,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:36,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:46:36,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:36,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-28 17:46:36,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:36,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 17:46:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:36,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:36,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:36,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:46:36,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:36,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:46:36,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:36,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:36,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:36,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:46:36,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:46:36,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:36,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 17:46:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:36,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:36,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:36,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:36,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:36,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:46:36,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:36,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:36,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:36,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:46:36,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:46:36,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:37,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 17:46:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:37,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:37,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:37,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:37,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:37,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:46:37,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:37,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:37,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:37,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:46:37,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:46:37,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:37,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-28 17:46:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:37,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:37,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:37,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:37,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:37,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:46:37,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:37,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:37,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:37,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:46:37,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:46:37,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:37,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 17:46:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:37,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:37,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:37,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:37,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:37,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:46:37,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:37,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:37,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:37,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:46:37,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:46:37,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:37,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 17:46:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:37,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:37,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:37,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:37,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:37,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:46:37,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:37,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:37,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:37,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:46:37,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:46:37,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:37,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-28 17:46:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:37,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:37,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:37,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:46:37,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:37,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:46:37,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:37,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:37,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:46:37,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:46:37,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:46:37,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:37,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:46:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:46:37,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:46:37,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:46:37,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:46:37,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:46:37,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:46:37,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:46:37,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:46:37,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:46:37,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 17:46:37,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:46:37,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:46:37,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:46:37,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1979903771] [2020-10-28 17:46:37,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:46:37,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-28 17:46:37,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231509137] [2020-10-28 17:46:37,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-28 17:46:37,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:46:37,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-28 17:46:37,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2020-10-28 17:46:37,467 INFO L87 Difference]: Start difference. First operand 2333 states and 3180 transitions. Second operand 22 states. [2020-10-28 17:46:37,889 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:46:38,241 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-28 17:46:38,561 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-28 17:46:38,880 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-28 17:46:39,213 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-28 17:46:39,549 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-28 17:46:39,933 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-28 17:46:40,273 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 17:46:40,608 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 17:46:40,948 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 17:46:41,302 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 17:46:41,649 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 17:46:42,164 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-28 17:46:44,728 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-28 17:46:45,873 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 17:46:46,018 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 17:46:46,164 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 17:46:46,309 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 17:46:46,444 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-28 17:46:47,606 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-28 17:46:47,745 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-28 17:46:48,160 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-28 17:46:48,300 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-28 17:46:49,897 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-28 17:46:50,221 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:46:50,537 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-28 17:46:50,849 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:46:51,185 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-28 17:46:53,231 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 17:46:53,388 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-28 17:46:53,540 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-28 17:46:54,078 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-28 17:46:55,522 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 17:46:55,677 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 17:46:55,820 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 17:46:56,002 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 17:46:56,600 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-28 17:46:56,749 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-28 17:46:57,865 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 17:46:58,004 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 17:46:58,610 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 17:46:58,758 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 17:46:58,911 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-28 17:46:59,991 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 17:47:00,594 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 17:47:00,749 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 17:47:00,897 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-28 17:47:01,802 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 17:47:01,966 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:47:02,138 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 17:47:02,315 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 17:47:02,676 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:47:02,840 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 17:47:03,275 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:47:03,949 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 17:47:04,095 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 17:47:04,241 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 17:47:04,641 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 17:47:04,929 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 17:47:09,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:47:09,071 INFO L93 Difference]: Finished difference Result 35620 states and 52070 transitions. [2020-10-28 17:47:09,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2020-10-28 17:47:09,072 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 114 [2020-10-28 17:47:09,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:47:09,307 INFO L225 Difference]: With dead ends: 35620 [2020-10-28 17:47:09,308 INFO L226 Difference]: Without dead ends: 33345 [2020-10-28 17:47:09,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8460 ImplicationChecksByTransitivity, 17.4s TimeCoverageRelationStatistics Valid=3899, Invalid=19053, Unknown=0, NotChecked=0, Total=22952 [2020-10-28 17:47:09,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33345 states. [2020-10-28 17:47:13,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33345 to 30077. [2020-10-28 17:47:13,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30077 states. [2020-10-28 17:47:13,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30077 states to 30077 states and 41340 transitions. [2020-10-28 17:47:13,731 INFO L78 Accepts]: Start accepts. Automaton has 30077 states and 41340 transitions. Word has length 114 [2020-10-28 17:47:13,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:47:13,731 INFO L481 AbstractCegarLoop]: Abstraction has 30077 states and 41340 transitions. [2020-10-28 17:47:13,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-28 17:47:13,731 INFO L276 IsEmpty]: Start isEmpty. Operand 30077 states and 41340 transitions. [2020-10-28 17:47:13,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-28 17:47:13,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:47:13,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:47:13,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 17:47:13,733 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:47:13,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:47:13,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1529059171, now seen corresponding path program 1 times [2020-10-28 17:47:13,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:47:13,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912172251] [2020-10-28 17:47:13,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:47:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:13,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:13,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:14,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:14,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:14,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-28 17:47:14,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:47:14,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 825 [2020-10-28 17:47:14,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:14,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:14,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:14,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-10-28 17:47:14,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 17:47:14,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:14,892 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 17:47:14,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:47:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:14,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:14,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:14,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:47:14,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:14,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:47:14,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:14,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:14,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:14,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:14,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:14,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:14,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:47:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:14,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:14,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:14,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:47:14,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:14,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:47:14,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:14,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:14,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:14,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:14,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:14,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:14,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 17:47:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:14,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:14,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:14,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:47:14,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:14,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:47:14,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:14,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:14,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:14,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:14,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:14,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:14,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 17:47:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:14,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:14,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:14,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:14,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:14,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:47:14,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:14,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:14,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:14,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:14,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:14,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:14,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 17:47:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:14,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:15,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:15,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:15,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:15,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:47:15,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:15,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:15,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:15,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:15,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:15,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:15,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-28 17:47:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:15,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:15,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:15,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:15,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:15,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:47:15,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:15,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:15,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:15,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:15,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:15,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:15,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 17:47:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:15,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:15,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:15,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:15,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:15,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:47:15,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:15,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:15,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:15,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:15,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:15,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:15,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 17:47:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:15,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:15,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:15,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:15,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:15,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:47:15,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:15,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:15,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:15,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:15,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:15,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:15,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-28 17:47:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:15,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:15,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:15,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:15,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:15,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:47:15,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:15,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:15,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:15,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:15,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:15,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:15,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:47:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:15,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:15,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:15,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:47:15,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:15,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:15,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:15,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:15,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:15,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 17:47:15,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 17:47:15,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:15,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:47:15,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1912172251] [2020-10-28 17:47:15,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:47:15,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 17:47:15,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702848116] [2020-10-28 17:47:15,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:47:15,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:47:15,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:47:15,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:47:15,168 INFO L87 Difference]: Start difference. First operand 30077 states and 41340 transitions. Second operand 10 states. [2020-10-28 17:47:16,683 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:47:22,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:47:22,752 INFO L93 Difference]: Finished difference Result 88195 states and 121472 transitions. [2020-10-28 17:47:22,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 17:47:22,752 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 116 [2020-10-28 17:47:22,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:47:23,014 INFO L225 Difference]: With dead ends: 88195 [2020-10-28 17:47:23,014 INFO L226 Difference]: Without dead ends: 58176 [2020-10-28 17:47:23,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:47:23,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58176 states. [2020-10-28 17:47:29,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58176 to 56925. [2020-10-28 17:47:29,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56925 states. [2020-10-28 17:47:29,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56925 states to 56925 states and 77596 transitions. [2020-10-28 17:47:29,613 INFO L78 Accepts]: Start accepts. Automaton has 56925 states and 77596 transitions. Word has length 116 [2020-10-28 17:47:29,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:47:29,614 INFO L481 AbstractCegarLoop]: Abstraction has 56925 states and 77596 transitions. [2020-10-28 17:47:29,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:47:29,614 INFO L276 IsEmpty]: Start isEmpty. Operand 56925 states and 77596 transitions. [2020-10-28 17:47:29,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-28 17:47:29,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:47:29,616 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:47:29,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 17:47:29,616 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:47:29,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:47:29,616 INFO L82 PathProgramCache]: Analyzing trace with hash 264988699, now seen corresponding path program 1 times [2020-10-28 17:47:29,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:47:29,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260909565] [2020-10-28 17:47:29,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:47:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:29,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:30,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:30,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-28 17:47:30,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:30,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 870 [2020-10-28 17:47:30,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:30,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:30,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:47:30,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 17:47:30,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-28 17:47:30,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:30,893 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 17:47:30,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:47:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:30,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:30,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:30,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:47:30,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:30,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:47:30,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:30,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:30,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:47:30,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:30,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:47:30,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:30,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:47:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:30,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:30,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:30,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:47:30,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:30,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 17:47:30,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:30,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:30,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:47:30,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:30,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-28 17:47:30,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:31,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 17:47:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:31,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:31,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:31,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:47:31,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:31,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:47:31,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:31,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:31,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:31,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:47:31,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:47:31,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:31,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 17:47:31,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:31,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:31,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:31,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:31,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:31,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 17:47:31,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:31,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:31,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:31,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:31,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:31,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:31,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 17:47:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:31,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:31,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:31,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:31,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:31,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 17:47:31,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:31,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:31,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:31,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:31,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:31,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:47:31,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-28 17:47:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:31,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:31,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:31,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:31,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:31,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 17:47:31,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:31,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:31,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:31,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:31,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:31,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:31,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 17:47:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:31,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:31,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:31,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:31,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:31,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:47:31,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:31,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:31,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:31,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:31,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:31,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:31,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 17:47:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:31,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:31,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:31,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:31,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:31,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:47:31,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:31,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:31,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:31,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:31,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:31,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:31,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-28 17:47:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:31,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:31,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:31,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:47:31,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:31,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:47:31,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:31,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:31,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:47:31,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:47:31,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:47:31,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:31,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:47:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:47:31,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:47:31,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:47:31,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:47:31,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:47:31,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:47:31,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:47:31,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:47:31,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:47:31,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 17:47:31,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:47:31,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:47:31,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:47:31,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260909565] [2020-10-28 17:47:31,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:47:31,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-10-28 17:47:31,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395031969] [2020-10-28 17:47:31,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-28 17:47:31,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:47:31,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-28 17:47:31,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:47:31,752 INFO L87 Difference]: Start difference. First operand 56925 states and 77596 transitions. Second operand 23 states. [2020-10-28 17:47:32,496 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-28 17:47:32,847 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-28 17:47:33,184 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-28 17:47:33,533 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-28 17:47:33,901 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:47:34,285 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-28 17:47:34,651 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 17:47:35,058 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:47:35,337 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-28 17:47:35,725 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:47:36,132 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:47:36,651 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:47:37,042 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:47:38,815 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:47:39,010 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-28 17:47:39,201 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-28 17:47:40,126 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-28 17:47:40,369 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 17:47:40,506 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-28 17:47:40,666 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 17:47:41,898 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:47:42,195 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 17:47:42,353 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 17:47:42,497 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-28 17:47:42,675 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 17:47:43,079 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-28 17:47:43,228 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-28 17:47:43,523 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-28 17:47:44,343 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-28 17:47:44,744 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 17:47:44,893 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 17:47:45,045 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-28 17:47:45,383 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:47:45,759 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-28 17:47:45,912 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-28 17:47:46,366 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-28 17:47:46,524 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-28 17:47:47,474 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-28 17:47:48,775 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-28 17:47:49,118 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-28 17:47:49,437 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-28 17:47:51,332 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 17:47:51,511 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 17:47:51,707 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-28 17:47:51,893 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-28 17:47:52,076 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-28 17:47:53,212 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-28 17:47:53,359 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-28 17:47:53,820 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 17:47:53,998 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 17:47:54,169 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 17:47:54,421 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:47:54,591 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 17:47:54,746 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 17:47:54,894 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-28 17:47:55,475 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 17:47:56,420 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 17:47:56,573 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-28 17:47:56,951 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:47:57,123 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 17:47:57,290 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 17:47:57,665 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:47:57,846 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:47:58,016 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 17:47:58,688 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 17:47:58,925 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-28 17:47:59,730 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 17:47:59,885 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 17:48:00,117 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:48:00,280 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 17:48:00,657 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:48:00,829 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:48:01,159 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 17:48:01,576 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 17:48:01,787 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-28 17:48:02,080 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-28 17:48:02,463 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 17:48:02,824 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:48:02,982 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 17:48:03,349 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-28 17:48:03,493 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 17:48:03,719 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 17:48:04,190 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 17:48:04,415 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-28 17:48:04,708 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-28 17:48:05,128 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 17:48:05,300 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 17:48:05,668 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 17:48:06,057 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:48:06,502 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-28 17:48:06,885 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 17:48:07,116 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-28 17:48:07,278 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 17:48:07,597 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-28 17:48:12,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:48:12,101 INFO L93 Difference]: Finished difference Result 150538 states and 207882 transitions. [2020-10-28 17:48:12,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2020-10-28 17:48:12,102 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 116 [2020-10-28 17:48:12,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:48:12,784 INFO L225 Difference]: With dead ends: 150538 [2020-10-28 17:48:12,785 INFO L226 Difference]: Without dead ends: 93671 [2020-10-28 17:48:12,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10123 ImplicationChecksByTransitivity, 22.8s TimeCoverageRelationStatistics Valid=4141, Invalid=22919, Unknown=0, NotChecked=0, Total=27060 [2020-10-28 17:48:12,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93671 states. [2020-10-28 17:48:22,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93671 to 90013. [2020-10-28 17:48:22,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90013 states. [2020-10-28 17:48:22,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90013 states to 90013 states and 123932 transitions. [2020-10-28 17:48:22,969 INFO L78 Accepts]: Start accepts. Automaton has 90013 states and 123932 transitions. Word has length 116 [2020-10-28 17:48:22,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:48:22,970 INFO L481 AbstractCegarLoop]: Abstraction has 90013 states and 123932 transitions. [2020-10-28 17:48:22,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-28 17:48:22,970 INFO L276 IsEmpty]: Start isEmpty. Operand 90013 states and 123932 transitions. [2020-10-28 17:48:22,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-28 17:48:22,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:48:22,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:48:22,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 17:48:22,972 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:48:22,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:48:22,973 INFO L82 PathProgramCache]: Analyzing trace with hash 685150435, now seen corresponding path program 1 times [2020-10-28 17:48:22,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:48:22,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778653572] [2020-10-28 17:48:22,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:48:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:23,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:23,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:23,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:23,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 17:48:23,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:48:23,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 650 [2020-10-28 17:48:23,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:23,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:48:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 17:48:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-28 17:48:23,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:23,983 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-28 17:48:23,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:48:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:23,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:23,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:23,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:48:23,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:23,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:48:23,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:23,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:23,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:48:23,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:23,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:48:23,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:24,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:48:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:24,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:24,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:24,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:48:24,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:24,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:48:24,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:24,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:24,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:48:24,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:24,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 17:48:24,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:24,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 17:48:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:24,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:24,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:24,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:48:24,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:24,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:48:24,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:24,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:24,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:48:24,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:24,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:48:24,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:24,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 17:48:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:24,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:24,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:24,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:48:24,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:24,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:48:24,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:24,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:24,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:48:24,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:48:24,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:48:24,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:24,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 17:48:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:24,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:24,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:24,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:48:24,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:24,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:48:24,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:24,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:24,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:48:24,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:24,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:48:24,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:24,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-28 17:48:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:24,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:24,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:24,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:48:24,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:24,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:48:24,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:24,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:24,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:48:24,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:24,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:48:24,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:48:24,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 17:48:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:24,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:24,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:24,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:48:24,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:24,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:48:24,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:24,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:24,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:48:24,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:24,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:48:24,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:24,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 17:48:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:24,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:24,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:24,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:48:24,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:24,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:48:24,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:24,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:24,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:48:24,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:24,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:48:24,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:24,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-28 17:48:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:24,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:24,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:24,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:48:24,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:48:24,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:48:24,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:24,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:24,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:48:24,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:48:24,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:48:24,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:24,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-28 17:48:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:48:24,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:24,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:48:24,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:48:24,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 17:48:24,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:48:24,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:48:24,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:48:24,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:48:24,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:48:24,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 17:48:24,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:48:24,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:48:24,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:48:24,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778653572] [2020-10-28 17:48:24,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:48:24,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 17:48:24,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108383974] [2020-10-28 17:48:24,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 17:48:24,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:48:24,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 17:48:24,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-28 17:48:24,442 INFO L87 Difference]: Start difference. First operand 90013 states and 123932 transitions. Second operand 12 states. [2020-10-28 17:48:24,778 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-28 17:48:27,296 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:48:27,947 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-28 17:48:28,194 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-28 17:48:28,524 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-28 17:48:28,864 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-28 17:48:29,248 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-28 17:48:40,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:48:40,902 INFO L93 Difference]: Finished difference Result 216482 states and 298976 transitions. [2020-10-28 17:48:40,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-28 17:48:40,903 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 117 [2020-10-28 17:48:40,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:48:41,638 INFO L225 Difference]: With dead ends: 216482 [2020-10-28 17:48:41,639 INFO L226 Difference]: Without dead ends: 126527 [2020-10-28 17:48:41,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=262, Invalid=794, Unknown=0, NotChecked=0, Total=1056 [2020-10-28 17:48:41,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126527 states.