/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 SingleStatement --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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:44:27,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:44:27,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:44:27,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:44:27,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:44:27,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:44:27,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:44:27,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:44:27,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:44:27,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:44:27,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:44:27,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:44:27,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:44:27,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:44:27,952 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:44:27,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:44:27,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:44:27,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:44:27,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:44:27,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:44:27,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:44:27,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:44:27,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:44:27,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:44:27,980 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:44:27,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:44:27,981 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:44:27,984 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:44:27,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:44:27,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:44:27,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:44:27,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:44:27,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:44:27,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:44:27,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:44:27,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:44:27,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:44:27,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:44:27,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:44:27,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:44:27,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:44:27,997 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 [2020-09-24 20:44:28,028 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:44:28,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:44:28,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:44:28,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:44:28,030 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:44:28,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:44:28,031 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:44:28,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:44:28,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:44:28,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:44:28,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:44:28,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:44:28,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:44:28,032 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:44:28,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:44:28,033 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:44:28,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:44:28,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:44:28,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:44:28,034 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:44:28,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:44:28,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:44:28,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:44:28,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:44:28,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:44:28,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:44:28,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:44:28,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:44:28,036 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:44:28,036 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> SingleStatement 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=BIGGEST;log-additional-information=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=BIGGEST;log-additional-information=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=BIGGEST;log-additional-information=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=BIGGEST;log-additional-information=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=BIGGEST;log-additional-information=true; [2020-09-24 20:44:28,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:44:28,534 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:44:28,540 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:44:28,543 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:44:28,544 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:44:28,545 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-09-24 20:44:28,631 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5daad10b5/72ca2af8c13c4d31b200b9677200a143/FLAG7eae48b14 [2020-09-24 20:44:29,237 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:44:29,238 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-09-24 20:44:29,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5daad10b5/72ca2af8c13c4d31b200b9677200a143/FLAG7eae48b14 [2020-09-24 20:44:29,505 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5daad10b5/72ca2af8c13c4d31b200b9677200a143 [2020-09-24 20:44:29,519 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:44:29,524 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:44:29,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:44:29,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:44:29,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:44:29,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:44:29" (1/1) ... [2020-09-24 20:44:29,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:29, skipping insertion in model container [2020-09-24 20:44:29,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:44:29" (1/1) ... [2020-09-24 20:44:29,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:44:29,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:44:30,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:44:30,048 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:44:30,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:44:30,159 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:44:30,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:30 WrapperNode [2020-09-24 20:44:30,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:44:30,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:44:30,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:44:30,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:44:30,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:30" (1/1) ... [2020-09-24 20:44:30,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:30" (1/1) ... [2020-09-24 20:44:30,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:30" (1/1) ... [2020-09-24 20:44:30,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:30" (1/1) ... [2020-09-24 20:44:30,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:30" (1/1) ... [2020-09-24 20:44:30,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:30" (1/1) ... [2020-09-24 20:44:30,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:30" (1/1) ... [2020-09-24 20:44:30,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:44:30,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:44:30,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:44:30,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:44:30,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:30" (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 [2020-09-24 20:44:30,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:44:30,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:44:30,334 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 20:44:30,334 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2020-09-24 20:44:30,334 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2020-09-24 20:44:30,334 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2020-09-24 20:44:30,335 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2020-09-24 20:44:30,335 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2020-09-24 20:44:30,336 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2020-09-24 20:44:30,336 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2020-09-24 20:44:30,336 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2020-09-24 20:44:30,337 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-09-24 20:44:30,337 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2020-09-24 20:44:30,337 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2020-09-24 20:44:30,337 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2020-09-24 20:44:30,338 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2020-09-24 20:44:30,338 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2020-09-24 20:44:30,339 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-09-24 20:44:30,339 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:44:30,339 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-09-24 20:44:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:44:30,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 20:44:30,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-24 20:44:30,340 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-09-24 20:44:30,341 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-09-24 20:44:30,341 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-09-24 20:44:30,341 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 20:44:30,342 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 20:44:30,342 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2020-09-24 20:44:30,342 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2020-09-24 20:44:30,342 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2020-09-24 20:44:30,342 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2020-09-24 20:44:30,342 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2020-09-24 20:44:30,343 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2020-09-24 20:44:30,343 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2020-09-24 20:44:30,343 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2020-09-24 20:44:30,343 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-09-24 20:44:30,343 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2020-09-24 20:44:30,344 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2020-09-24 20:44:30,344 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2020-09-24 20:44:30,346 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2020-09-24 20:44:30,346 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2020-09-24 20:44:30,346 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-09-24 20:44:30,346 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:44:30,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:44:30,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:44:31,526 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:44:31,526 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 20:44:31,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:44:31 BoogieIcfgContainer [2020-09-24 20:44:31,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:44:31,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:44:31,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:44:31,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:44:31,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:44:29" (1/3) ... [2020-09-24 20:44:31,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be99581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:44:31, skipping insertion in model container [2020-09-24 20:44:31,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:30" (2/3) ... [2020-09-24 20:44:31,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be99581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:44:31, skipping insertion in model container [2020-09-24 20:44:31,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:44:31" (3/3) ... [2020-09-24 20:44:31,548 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-09-24 20:44:31,562 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:44:31,574 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:44:31,601 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:44:31,640 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:44:31,641 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:44:31,641 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:44:31,641 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:44:31,641 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:44:31,641 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:44:31,642 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:44:31,642 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:44:31,676 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states. [2020-09-24 20:44:31,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-09-24 20:44:31,705 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:44:31,707 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:44:31,708 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:44:31,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:44:31,718 INFO L82 PathProgramCache]: Analyzing trace with hash -182402980, now seen corresponding path program 1 times [2020-09-24 20:44:31,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:44:31,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [439756145] [2020-09-24 20:44:31,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:44:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:32,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:32,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:32,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:32,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:32,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:33,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:33,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:33,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:35,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:35,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 20:44:35,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 20:44:35,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3730 [2020-09-24 20:44:35,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:35,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:44:35,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-09-24 20:44:35,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 20:44:35,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:44:36,124 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 20:44:36,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:44:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:36,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:36,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 20:44:36,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:36,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 20:44:36,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:36,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:36,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:36,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:36,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:36,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 20:44:36,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:36,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:36,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:44:36,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:36,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 20:44:36,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:36,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:44:36,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:36,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:44:36,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:36,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:44:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:36,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:36,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:44:36,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:36,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 20:44:36,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:36,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:44:36,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 20:44:36,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:44:36,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:36,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 20:44:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:36,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:36,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 20:44:36,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:36,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 20:44:36,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:36,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:36,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 20:44:36,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:36,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 20:44:36,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:44:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:36,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:36,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:44:36,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:36,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:44:36,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:36,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:36,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:36,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:36,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:36,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 20:44:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:36,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:36,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 20:44:36,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:44:36,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 20:44:36,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:36,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:36,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 20:44:36,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:36,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:36,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 20:44:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:36,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:36,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:44:36,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:36,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:44:36,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:36,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:36,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:36,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:36,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:36,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 20:44:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:36,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:36,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 20:44:36,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:44:36,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-24 20:44:36,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:36,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:36,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 20:44:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:36,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:36,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 20:44:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:36,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:36,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:44:36,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:36,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 20:44:36,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:36,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:36,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:36,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:36,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:37,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:44:37,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [439756145] [2020-09-24 20:44:37,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:44:37,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 20:44:37,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188837342] [2020-09-24 20:44:37,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 20:44:37,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:44:37,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 20:44:37,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-09-24 20:44:37,078 INFO L87 Difference]: Start difference. First operand 574 states. Second operand 14 states. [2020-09-24 20:44:37,858 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-24 20:44:38,176 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-24 20:44:38,358 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-24 20:44:42,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:44:42,512 INFO L93 Difference]: Finished difference Result 1019 states and 1270 transitions. [2020-09-24 20:44:42,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 20:44:42,514 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 228 [2020-09-24 20:44:42,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:44:42,554 INFO L225 Difference]: With dead ends: 1019 [2020-09-24 20:44:42,554 INFO L226 Difference]: Without dead ends: 550 [2020-09-24 20:44:42,569 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2020-09-24 20:44:42,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-09-24 20:44:42,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2020-09-24 20:44:42,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2020-09-24 20:44:42,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 643 transitions. [2020-09-24 20:44:42,718 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 643 transitions. Word has length 228 [2020-09-24 20:44:42,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:44:42,719 INFO L479 AbstractCegarLoop]: Abstraction has 550 states and 643 transitions. [2020-09-24 20:44:42,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 20:44:42,719 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 643 transitions. [2020-09-24 20:44:42,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-24 20:44:42,727 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:44:42,728 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:44:42,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:44:42,728 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:44:42,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:44:42,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1513791060, now seen corresponding path program 1 times [2020-09-24 20:44:42,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:44:42,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600573159] [2020-09-24 20:44:42,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:44:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:42,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:43,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:43,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-09-24 20:44:43,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:43,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 602 [2020-09-24 20:44:43,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:43,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:44:43,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-09-24 20:44:43,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:44:43,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:43,600 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 20:44:43,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:44:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:43,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:43,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:43,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 20:44:43,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:43,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 20:44:43,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:43,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:43,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:43,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:43,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:43,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 20:44:43,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:43,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:43,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:43,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:44:43,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:43,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:44:43,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:43,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:43,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:43,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:43,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:43,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-24 20:44:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:43,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:43,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:43,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:44:43,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:43,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:44:43,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:43,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:43,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:43,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:43,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:43,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 20:44:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:43,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:43,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:43,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 20:44:43,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:43,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 20:44:43,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:43,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:43,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:43,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:43,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:43,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:44:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:43,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:43,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:43,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:44:43,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:43,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:44:43,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:43,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:43,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:43,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:43,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:43,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 20:44:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:43,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:43,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:43,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 20:44:43,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:43,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 20:44:43,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:43,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:43,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:43,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:43,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:43,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 20:44:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:43,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:43,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:43,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:44:43,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:43,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:44:43,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:43,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:43,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:43,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:43,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:43,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 20:44:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:43,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:43,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:43,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 20:44:43,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:43,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 20:44:43,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:43,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:43,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:43,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:43,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:43,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 20:44:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:43,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:43,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:43,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:44:43,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:43,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:44:43,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:43,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:43,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:43,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:43,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:44,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:44:44,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600573159] [2020-09-24 20:44:44,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:44:44,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 20:44:44,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395655480] [2020-09-24 20:44:44,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 20:44:44,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:44:44,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 20:44:44,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:44:44,093 INFO L87 Difference]: Start difference. First operand 550 states and 643 transitions. Second operand 11 states. [2020-09-24 20:44:46,060 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-24 20:44:46,238 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-24 20:44:47,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:44:47,724 INFO L93 Difference]: Finished difference Result 976 states and 1167 transitions. [2020-09-24 20:44:47,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 20:44:47,724 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 239 [2020-09-24 20:44:47,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:44:47,729 INFO L225 Difference]: With dead ends: 976 [2020-09-24 20:44:47,730 INFO L226 Difference]: Without dead ends: 555 [2020-09-24 20:44:47,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2020-09-24 20:44:47,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2020-09-24 20:44:47,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2020-09-24 20:44:47,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2020-09-24 20:44:47,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 647 transitions. [2020-09-24 20:44:47,773 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 647 transitions. Word has length 239 [2020-09-24 20:44:47,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:44:47,775 INFO L479 AbstractCegarLoop]: Abstraction has 555 states and 647 transitions. [2020-09-24 20:44:47,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 20:44:47,775 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 647 transitions. [2020-09-24 20:44:47,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-09-24 20:44:47,781 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:44:47,782 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:44:47,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:44:47,782 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:44:47,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:44:47,783 INFO L82 PathProgramCache]: Analyzing trace with hash 960210052, now seen corresponding path program 1 times [2020-09-24 20:44:47,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:44:47,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1492112339] [2020-09-24 20:44:47,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:44:47,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:47,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:48,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:48,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:52,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:52,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 349 [2020-09-24 20:44:52,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:44:52,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4426 [2020-09-24 20:44:52,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:52,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:44:52,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:44:52,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-09-24 20:44:52,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:52,527 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 20:44:52,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:44:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:52,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:52,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:52,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 20:44:52,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:52,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 20:44:52,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:52,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:44:52,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:52,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 20:44:52,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:52,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 20:44:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:52,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:52,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:52,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:44:52,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:52,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 20:44:52,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:52,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:44:52,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:52,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 20:44:52,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:52,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-24 20:44:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:52,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:52,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:52,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:44:52,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:52,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:44:52,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:44:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:44:52,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:52,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 20:44:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:52,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:52,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:52,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 20:44:52,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:52,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 20:44:52,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:52,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:44:52,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:52,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 20:44:52,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:52,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:44:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:52,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:52,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:52,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:44:52,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:52,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:44:52,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:52,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:52,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:52,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:52,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:52,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 20:44:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:52,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:52,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:52,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 20:44:52,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:52,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 20:44:52,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:52,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:44:52,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:52,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 20:44:52,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:52,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 20:44:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:52,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:53,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:53,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:44:53,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:53,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:44:53,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:53,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:53,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:53,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:53,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:53,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 20:44:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:53,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:53,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:53,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 20:44:53,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:53,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 20:44:53,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:53,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:44:53,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:53,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 20:44:53,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:53,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 20:44:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:53,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:53,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:53,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:44:53,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:53,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:44:53,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:53,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:53,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:53,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:53,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:53,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-24 20:44:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:53,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:53,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:53,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 20:44:53,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:53,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 20:44:53,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:53,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:44:53,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:44:53,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 20:44:53,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:53,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:44:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:53,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:53,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:53,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:44:53,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:53,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:44:53,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:53,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:44:53,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:53,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:44:53,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:53,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 20:44:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:53,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:53,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:53,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:44:53,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:53,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 20:44:53,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:53,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:44:53,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:53,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:44:53,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:53,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2020-09-24 20:44:53,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:53,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:53,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:53,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:44:53,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:53,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:44:53,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:53,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:53,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:44:53,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:53,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:53,683 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 20:44:53,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1492112339] [2020-09-24 20:44:53,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:44:53,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-09-24 20:44:53,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126034128] [2020-09-24 20:44:53,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 20:44:53,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:44:53,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 20:44:53,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:44:53,689 INFO L87 Difference]: Start difference. First operand 555 states and 647 transitions. Second operand 17 states. [2020-09-24 20:44:53,820 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-24 20:44:54,362 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-24 20:44:54,495 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-09-24 20:44:56,578 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 139 [2020-09-24 20:44:56,727 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-09-24 20:44:56,856 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-09-24 20:44:57,645 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-24 20:44:59,894 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-09-24 20:45:00,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:45:00,509 INFO L93 Difference]: Finished difference Result 1181 states and 1390 transitions. [2020-09-24 20:45:00,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-24 20:45:00,510 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 312 [2020-09-24 20:45:00,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:45:00,523 INFO L225 Difference]: With dead ends: 1181 [2020-09-24 20:45:00,523 INFO L226 Difference]: Without dead ends: 755 [2020-09-24 20:45:00,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=597, Invalid=1755, Unknown=0, NotChecked=0, Total=2352 [2020-09-24 20:45:00,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2020-09-24 20:45:00,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 747. [2020-09-24 20:45:00,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 747 states. [2020-09-24 20:45:00,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 864 transitions. [2020-09-24 20:45:00,588 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 864 transitions. Word has length 312 [2020-09-24 20:45:00,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:45:00,589 INFO L479 AbstractCegarLoop]: Abstraction has 747 states and 864 transitions. [2020-09-24 20:45:00,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 20:45:00,589 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 864 transitions. [2020-09-24 20:45:00,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-09-24 20:45:00,594 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:45:00,595 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:45:00,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:45:00,595 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:45:00,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:45:00,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1614602927, now seen corresponding path program 1 times [2020-09-24 20:45:00,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:45:00,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2044554927] [2020-09-24 20:45:00,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:45:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:00,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:01,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:01,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:02,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:05,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:05,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 350 [2020-09-24 20:45:05,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:45:05,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-24 20:45:05,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:05,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:45:05,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-09-24 20:45:05,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-24 20:45:05,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:45:05,948 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 20:45:05,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:45:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:05,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:05,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:05,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 20:45:05,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:05,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 20:45:05,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:05,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:45:05,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:05,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:45:05,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:45:06,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 20:45:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:45:06,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:45:06,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:45:06,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:06,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:45:06,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:45:06,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-24 20:45:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:45:06,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:45:06,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:45:06,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:06,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:45:06,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:45:06,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 20:45:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 20:45:06,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 20:45:06,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:45:06,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:06,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 20:45:06,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:45:06,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:45:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:45:06,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:45:06,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:45:06,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:06,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:45:06,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:45:06,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 20:45:06,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 20:45:06,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 20:45:06,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:45:06,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:06,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 20:45:06,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:45:06,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 20:45:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:45:06,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:45:06,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:45:06,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:06,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:45:06,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:45:06,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 20:45:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 20:45:06,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 20:45:06,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:45:06,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:06,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 20:45:06,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:45:06,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 20:45:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:45:06,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:45:06,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:45:06,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:06,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:45:06,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:45:06,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-24 20:45:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-24 20:45:06,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 20:45:06,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:45:06,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:45:06,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-24 20:45:06,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:45:06,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:45:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:45:06,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 20:45:06,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:45:06,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:06,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:45:06,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:45:06,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-24 20:45:06,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:45:06,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 20:45:06,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:45:06,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:06,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:45:06,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:45:06,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-09-24 20:45:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:45:06,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:45:06,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:45:06,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:45:06,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:45:06,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:45:07,126 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 20:45:07,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2044554927] [2020-09-24 20:45:07,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:45:07,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-09-24 20:45:07,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783166351] [2020-09-24 20:45:07,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-24 20:45:07,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:45:07,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-24 20:45:07,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-09-24 20:45:07,130 INFO L87 Difference]: Start difference. First operand 747 states and 864 transitions. Second operand 18 states. [2020-09-24 20:45:07,274 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-24 20:45:08,297 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-09-24 20:45:10,495 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 137 [2020-09-24 20:45:10,862 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 140 [2020-09-24 20:45:11,277 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 141 [2020-09-24 20:45:11,718 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2020-09-24 20:45:11,972 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 100 [2020-09-24 20:45:14,732 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 135 [2020-09-24 20:45:14,863 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-24 20:45:15,120 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 107 [2020-09-24 20:45:15,258 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-09-24 20:45:15,546 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 108 [2020-09-24 20:45:15,800 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 107 [2020-09-24 20:45:16,091 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 109 [2020-09-24 20:45:16,411 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2020-09-24 20:45:17,170 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 99 [2020-09-24 20:45:17,428 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2020-09-24 20:45:17,671 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 98 [2020-09-24 20:45:17,916 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 100 [2020-09-24 20:45:18,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:45:18,293 INFO L93 Difference]: Finished difference Result 1209 states and 1427 transitions. [2020-09-24 20:45:18,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-09-24 20:45:18,293 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 313 [2020-09-24 20:45:18,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:45:18,300 INFO L225 Difference]: With dead ends: 1209 [2020-09-24 20:45:18,300 INFO L226 Difference]: Without dead ends: 776 [2020-09-24 20:45:18,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 731 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=792, Invalid=2514, Unknown=0, NotChecked=0, Total=3306 [2020-09-24 20:45:18,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2020-09-24 20:45:18,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 767. [2020-09-24 20:45:18,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 767 states. [2020-09-24 20:45:18,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 886 transitions. [2020-09-24 20:45:18,349 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 886 transitions. Word has length 313 [2020-09-24 20:45:18,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:45:18,350 INFO L479 AbstractCegarLoop]: Abstraction has 767 states and 886 transitions. [2020-09-24 20:45:18,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-24 20:45:18,350 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 886 transitions. [2020-09-24 20:45:18,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-09-24 20:45:18,355 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:45:18,355 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:45:18,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:45:18,356 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:45:18,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:45:18,357 INFO L82 PathProgramCache]: Analyzing trace with hash -334289294, now seen corresponding path program 1 times [2020-09-24 20:45:18,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:45:18,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [562177990] [2020-09-24 20:45:18,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:45:18,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:18,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:19,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:19,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking...