/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=DEEPEST --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 [2020-09-25 01:12:15,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:12:15,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:12:15,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:12:15,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:12:15,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:12:15,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:12:16,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:12:16,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:12:16,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:12:16,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:12:16,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:12:16,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:12:16,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:12:16,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:12:16,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:12:16,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:12:16,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:12:16,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:12:16,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:12:16,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:12:16,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:12:16,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:12:16,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:12:16,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:12:16,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:12:16,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:12:16,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:12:16,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:12:16,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:12:16,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:12:16,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:12:16,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:12:16,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:12:16,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:12:16,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:12:16,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:12:16,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:12:16,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:12:16,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:12:16,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:12:16,066 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 [2020-09-25 01:12:16,118 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:12:16,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:12:16,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:12:16,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:12:16,121 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:12:16,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:12:16,121 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:12:16,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:12:16,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:12:16,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:12:16,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:12:16,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:12:16,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:12:16,124 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:12:16,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:12:16,124 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:12:16,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:12:16,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:12:16,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:12:16,125 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:12:16,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:12:16,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:12:16,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:12:16,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:12:16,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:12:16,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:12:16,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:12:16,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:12:16,127 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:12:16,127 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 01:12:16,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:12:16,611 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:12:16,616 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:12:16,621 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:12:16,621 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:12:16,623 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-09-25 01:12:16,723 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7307c935/f90ae56ad7c3426496d6be526cf3555e/FLAG8e5edbbcd [2020-09-25 01:12:17,387 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:12:17,389 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-09-25 01:12:17,409 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7307c935/f90ae56ad7c3426496d6be526cf3555e/FLAG8e5edbbcd [2020-09-25 01:12:17,631 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7307c935/f90ae56ad7c3426496d6be526cf3555e [2020-09-25 01:12:17,644 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:12:17,651 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:12:17,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:12:17,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:12:17,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:12:17,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:12:17" (1/1) ... [2020-09-25 01:12:17,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@445b6256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:17, skipping insertion in model container [2020-09-25 01:12:17,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:12:17" (1/1) ... [2020-09-25 01:12:17,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:12:17,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:12:18,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:12:18,086 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:12:18,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:12:18,291 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:12:18,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:18 WrapperNode [2020-09-25 01:12:18,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:12:18,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:12:18,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:12:18,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:12:18,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:18" (1/1) ... [2020-09-25 01:12:18,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:18" (1/1) ... [2020-09-25 01:12:18,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:18" (1/1) ... [2020-09-25 01:12:18,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:18" (1/1) ... [2020-09-25 01:12:18,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:18" (1/1) ... [2020-09-25 01:12:18,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:18" (1/1) ... [2020-09-25 01:12:18,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:18" (1/1) ... [2020-09-25 01:12:18,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:12:18,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:12:18,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:12:18,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:12:18,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:18" (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 [2020-09-25 01:12:18,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:12:18,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:12:18,454 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 01:12:18,454 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2020-09-25 01:12:18,455 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2020-09-25 01:12:18,455 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2020-09-25 01:12:18,455 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2020-09-25 01:12:18,455 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2020-09-25 01:12:18,455 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2020-09-25 01:12:18,455 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2020-09-25 01:12:18,456 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2020-09-25 01:12:18,456 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-09-25 01:12:18,456 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2020-09-25 01:12:18,456 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2020-09-25 01:12:18,456 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2020-09-25 01:12:18,457 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2020-09-25 01:12:18,458 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2020-09-25 01:12:18,458 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-09-25 01:12:18,458 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:12:18,458 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-09-25 01:12:18,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:12:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 01:12:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 01:12:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-09-25 01:12:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-09-25 01:12:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-09-25 01:12:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 01:12:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 01:12:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2020-09-25 01:12:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2020-09-25 01:12:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2020-09-25 01:12:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2020-09-25 01:12:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2020-09-25 01:12:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2020-09-25 01:12:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2020-09-25 01:12:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2020-09-25 01:12:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-09-25 01:12:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2020-09-25 01:12:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2020-09-25 01:12:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2020-09-25 01:12:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2020-09-25 01:12:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2020-09-25 01:12:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-09-25 01:12:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:12:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:12:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:12:19,633 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:12:19,634 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 01:12:19,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:12:19 BoogieIcfgContainer [2020-09-25 01:12:19,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:12:19,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:12:19,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:12:19,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:12:19,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:12:17" (1/3) ... [2020-09-25 01:12:19,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bab5077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:12:19, skipping insertion in model container [2020-09-25 01:12:19,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:18" (2/3) ... [2020-09-25 01:12:19,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bab5077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:12:19, skipping insertion in model container [2020-09-25 01:12:19,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:12:19" (3/3) ... [2020-09-25 01:12:19,654 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-09-25 01:12:19,667 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:12:19,679 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:12:19,701 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:12:19,737 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:12:19,738 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:12:19,738 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:12:19,738 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:12:19,738 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:12:19,738 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:12:19,738 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:12:19,739 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:12:19,773 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states. [2020-09-25 01:12:19,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-09-25 01:12:19,795 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:12:19,797 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] [2020-09-25 01:12:19,797 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:12:19,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:12:19,806 INFO L82 PathProgramCache]: Analyzing trace with hash -182402980, now seen corresponding path program 1 times [2020-09-25 01:12:19,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:12:19,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [988193962] [2020-09-25 01:12:19,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:12:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:20,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:20,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:20,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:20,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:20,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:21,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:21,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:22,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:24,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:24,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-25 01:12:24,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 01:12:24,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3990 [2020-09-25 01:12:24,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:24,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 01:12:24,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 245 [2020-09-25 01:12:24,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:12:24,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:12:24,520 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-25 01:12:24,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:12:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:24,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:24,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:24,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 01:12:24,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:24,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 01:12:24,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:24,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:24,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:24,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:24,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:24,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-25 01:12:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:24,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:24,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:24,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:12:24,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:24,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:12:24,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:24,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:24,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:24,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:24,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:12:24,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:12:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:24,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:24,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:24,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:12:24,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:24,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:12:24,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:24,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:24,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:24,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:24,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:12:24,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 01:12:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:24,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:24,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:24,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 01:12:24,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:24,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 01:12:24,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:24,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:24,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:24,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:24,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 01:12:24,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 01:12:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:24,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:24,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:24,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:12:24,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:24,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:12:24,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:24,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:24,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:24,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:24,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:12:24,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 01:12:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:24,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:24,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:24,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:24,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:24,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:24,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 01:12:24,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:12:24,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 01:12:24,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:24,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:24,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-25 01:12:24,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:24,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:12:25,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 01:12:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:25,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:25,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:25,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:12:25,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:25,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:12:25,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:25,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:25,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:25,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:25,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:12:25,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 01:12:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:25,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:25,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:25,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:25,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:25,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:25,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 01:12:25,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:12:25,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 01:12:25,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:25,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:25,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-25 01:12:25,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:25,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:25,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 01:12:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:25,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:25,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:25,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:12:25,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:25,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:12:25,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:25,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:25,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:25,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:25,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:25,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:12:25,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [988193962] [2020-09-25 01:12:25,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:12:25,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 01:12:25,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657973742] [2020-09-25 01:12:25,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 01:12:25,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:12:25,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 01:12:25,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:12:25,312 INFO L87 Difference]: Start difference. First operand 574 states. Second operand 11 states. [2020-09-25 01:12:27,979 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-25 01:12:28,184 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-09-25 01:12:29,347 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-25 01:12:30,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:12:30,139 INFO L93 Difference]: Finished difference Result 1020 states and 1270 transitions. [2020-09-25 01:12:30,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 01:12:30,141 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 228 [2020-09-25 01:12:30,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:12:30,163 INFO L225 Difference]: With dead ends: 1020 [2020-09-25 01:12:30,164 INFO L226 Difference]: Without dead ends: 569 [2020-09-25 01:12:30,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=201, Invalid=399, Unknown=0, NotChecked=0, Total=600 [2020-09-25 01:12:30,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-09-25 01:12:30,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 567. [2020-09-25 01:12:30,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2020-09-25 01:12:30,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 671 transitions. [2020-09-25 01:12:30,334 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 671 transitions. Word has length 228 [2020-09-25 01:12:30,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:12:30,338 INFO L479 AbstractCegarLoop]: Abstraction has 567 states and 671 transitions. [2020-09-25 01:12:30,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 01:12:30,338 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 671 transitions. [2020-09-25 01:12:30,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-09-25 01:12:30,375 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:12:30,376 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] [2020-09-25 01:12:30,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:12:30,377 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:12:30,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:12:30,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1715458180, now seen corresponding path program 1 times [2020-09-25 01:12:30,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:12:30,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1813863406] [2020-09-25 01:12:30,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:12:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:30,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:30,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:34,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:34,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:35,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:35,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-09-25 01:12:35,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:12:35,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 01:12:35,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:35,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 01:12:35,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 326 [2020-09-25 01:12:35,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 01:12:35,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:35,747 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-25 01:12:35,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:12:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:35,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:35,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:35,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 01:12:35,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:35,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 01:12:35,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:35,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:35,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:35,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:35,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:35,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-25 01:12:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:35,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:35,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:35,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:12:35,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:35,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:12:35,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:35,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:35,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:35,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:35,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:35,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:12:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:35,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:35,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:35,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:12:35,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:35,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:12:35,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:35,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:35,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:35,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:35,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:35,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 01:12:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:35,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:35,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:35,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 01:12:35,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:35,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 01:12:35,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:35,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:35,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:35,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:35,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:35,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 01:12:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:35,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:35,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:35,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:12:35,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:35,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:12:35,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:35,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:35,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:35,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:35,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:12:35,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 01:12:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:35,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:35,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:35,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 01:12:35,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:35,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 01:12:35,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:35,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:35,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:35,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:35,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:35,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 01:12:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:35,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:36,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:36,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:12:36,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:36,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:12:36,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:36,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:36,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:36,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:36,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:12:36,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 01:12:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:36,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:36,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:36,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 01:12:36,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:36,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 01:12:36,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:36,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:36,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:36,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:36,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:36,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 01:12:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:36,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:36,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:36,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:12:36,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:36,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:12:36,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:36,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:36,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:36,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:36,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:36,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-25 01:12:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:36,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:36,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:36,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 01:12:36,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:36,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 01:12:36,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:36,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:36,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:36,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:36,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:36,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 01:12:36,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:36,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:36,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:36,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:12:36,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:36,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:12:36,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:36,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:36,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:36,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:36,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:36,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 01:12:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:36,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:36,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:36,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:12:36,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:36,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:12:36,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:36,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:36,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:36,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:36,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:36,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-09-25 01:12:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:36,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:36,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:36,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:12:36,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:36,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:12:36,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:36,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:36,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:36,377 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 01:12:36,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1813863406] [2020-09-25 01:12:36,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:12:36,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 01:12:36,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886098924] [2020-09-25 01:12:36,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 01:12:36,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:12:36,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 01:12:36,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-09-25 01:12:36,384 INFO L87 Difference]: Start difference. First operand 567 states and 671 transitions. Second operand 13 states. [2020-09-25 01:12:39,255 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-25 01:12:39,469 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-09-25 01:12:40,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:12:40,926 INFO L93 Difference]: Finished difference Result 999 states and 1197 transitions. [2020-09-25 01:12:40,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 01:12:40,928 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 301 [2020-09-25 01:12:40,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:12:40,934 INFO L225 Difference]: With dead ends: 999 [2020-09-25 01:12:40,934 INFO L226 Difference]: Without dead ends: 573 [2020-09-25 01:12:40,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2020-09-25 01:12:40,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2020-09-25 01:12:40,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2020-09-25 01:12:40,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-09-25 01:12:40,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 676 transitions. [2020-09-25 01:12:40,984 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 676 transitions. Word has length 301 [2020-09-25 01:12:40,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:12:40,985 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 676 transitions. [2020-09-25 01:12:40,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 01:12:40,985 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 676 transitions. [2020-09-25 01:12:40,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-09-25 01:12:40,990 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:12:40,991 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] [2020-09-25 01:12:40,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:12:40,991 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:12:40,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:12:40,992 INFO L82 PathProgramCache]: Analyzing trace with hash -160047041, now seen corresponding path program 1 times [2020-09-25 01:12:40,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:12:40,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392341882] [2020-09-25 01:12:40,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:12:41,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:41,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:41,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:44,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:44,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:46,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:46,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 351 [2020-09-25 01:12:46,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:12:46,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-09-25 01:12:46,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:46,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 01:12:46,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 339 [2020-09-25 01:12:46,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 01:12:46,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:46,362 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-25 01:12:46,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:12:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:46,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:46,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:46,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 01:12:46,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:46,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 01:12:46,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:46,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:46,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:46,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:46,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:46,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-25 01:12:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:46,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:46,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:46,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:12:46,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:46,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:12:46,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:46,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:46,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:46,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:46,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:46,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:12:46,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:46,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:46,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:46,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:12:46,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:46,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:12:46,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:46,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:46,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:46,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:46,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:46,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 01:12:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:46,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:46,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:46,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 01:12:46,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:46,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 01:12:46,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:46,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:46,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:46,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:46,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:46,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 01:12:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:46,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:46,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:46,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:12:46,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:46,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:12:46,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:46,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:46,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 34 [2020-09-25 01:12:46,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 01:12:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:46,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:46,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:46,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 01:12:46,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:46,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 01:12:46,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:46,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:46,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 01:12:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:46,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:46,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:46,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:12:46,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:46,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:12:46,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:46,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:46,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:46,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:46,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:46,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 01:12:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:46,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:46,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:46,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 01:12:46,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:46,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 01:12:46,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:46,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:46,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:46,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:46,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:46,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 01:12:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:46,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:46,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:46,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:12:46,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:46,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:12:46,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:46,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:46,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:46,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:46,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:12:46,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-25 01:12:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:46,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:46,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:46,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 01:12:46,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:46,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 01:12:46,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:46,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:46,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:46,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:46,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:12:46,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 01:12:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:46,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:46,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:46,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:12:46,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:46,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:12:46,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:46,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:46,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:46,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:46,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:12:46,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 01:12:46,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:46,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:46,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:46,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:12:46,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:46,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 01:12:46,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:46,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:46,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:46,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:46,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:12:46,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-09-25 01:12:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:46,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:46,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:46,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:12:46,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:46,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 01:12:46,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:46,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:46,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:46,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:46,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:12:46,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2020-09-25 01:12:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:46,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:46,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:46,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:12:46,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:46,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:12:46,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:46,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:46,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:46,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:46,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:12:47,100 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 01:12:47,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392341882] [2020-09-25 01:12:47,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:12:47,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 01:12:47,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800330815] [2020-09-25 01:12:47,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 01:12:47,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:12:47,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 01:12:47,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-09-25 01:12:47,106 INFO L87 Difference]: Start difference. First operand 573 states and 676 transitions. Second operand 13 states. [2020-09-25 01:12:47,243 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-25 01:12:50,413 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-25 01:12:50,623 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-09-25 01:12:51,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:12:51,733 INFO L93 Difference]: Finished difference Result 1011 states and 1210 transitions. [2020-09-25 01:12:51,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 01:12:51,734 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 312 [2020-09-25 01:12:51,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:12:51,739 INFO L225 Difference]: With dead ends: 1011 [2020-09-25 01:12:51,739 INFO L226 Difference]: Without dead ends: 579 [2020-09-25 01:12:51,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2020-09-25 01:12:51,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2020-09-25 01:12:51,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2020-09-25 01:12:51,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2020-09-25 01:12:51,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 681 transitions. [2020-09-25 01:12:51,776 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 681 transitions. Word has length 312 [2020-09-25 01:12:51,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:12:51,777 INFO L479 AbstractCegarLoop]: Abstraction has 579 states and 681 transitions. [2020-09-25 01:12:51,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 01:12:51,778 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 681 transitions. [2020-09-25 01:12:51,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-09-25 01:12:51,783 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:12:51,784 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1] [2020-09-25 01:12:51,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:12:51,784 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:12:51,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:12:51,785 INFO L82 PathProgramCache]: Analyzing trace with hash -17901918, now seen corresponding path program 1 times [2020-09-25 01:12:51,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:12:51,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [328481462] [2020-09-25 01:12:51,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:12:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:51,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:51,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:52,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:56,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:56,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-09-25 01:12:56,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:12:56,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 01:12:56,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:56,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:12:56,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 184 [2020-09-25 01:12:56,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-25 01:12:56,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:57,047 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-25 01:12:57,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:12:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:57,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:57,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:57,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 01:12:57,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:57,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 01:12:57,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:57,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:57,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:57,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:57,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:57,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-25 01:12:57,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:57,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:57,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:57,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:12:57,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:57,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:12:57,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:57,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:57,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:12:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:57,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:57,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:57,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:12:57,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:57,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:12:57,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:57,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:57,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:57,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:57,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:12:57,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 01:12:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:57,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:57,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:57,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 01:12:57,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:57,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 01:12:57,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:57,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:57,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:57,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:57,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:57,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 01:12:57,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:57,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:57,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:57,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:12:57,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:57,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:12:57,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:57,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:57,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:57,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:57,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:57,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 01:12:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:57,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:57,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:57,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 01:12:57,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:57,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 01:12:57,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:57,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:12:57,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:57,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 01:12:57,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:57,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 01:12:57,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:57,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:57,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:57,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:12:57,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:57,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:12:57,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:57,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:57,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:57,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:57,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:57,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 01:12:57,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:57,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:57,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:57,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 01:12:57,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:57,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 01:12:57,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:57,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:12:57,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:57,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 01:12:57,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:57,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 01:12:57,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:57,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:57,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:57,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:12:57,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:57,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 01:12:57,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:57,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:57,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-25 01:12:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:57,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:57,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:57,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 01:12:57,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:57,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 01:12:57,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:57,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:12:57,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:57,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 01:12:57,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:57,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 01:12:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:57,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:57,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:57,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:12:57,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:57,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:12:57,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:57,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:57,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:57,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:57,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:57,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 01:12:57,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:57,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:57,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:57,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:12:57,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:57,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:12:57,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:57,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:57,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:12:57,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:57,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:57,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-09-25 01:12:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:57,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:57,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:57,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:12:57,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:57,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 01:12:57,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:57,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:57,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 01:12:57,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:57,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:57,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2020-09-25 01:12:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:57,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:57,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:57,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:12:57,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:57,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:12:57,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:57,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:57,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 01:12:57,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:57,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:57,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2020-09-25 01:12:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:12:57,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:12:57,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:12:57,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:12:57,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:12:57,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:12:57,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:12:57,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:12:57,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 01:12:57,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:12:57,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:12:57,849 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 01:12:57,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [328481462] [2020-09-25 01:12:57,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:12:57,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 01:12:57,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982931185] [2020-09-25 01:12:57,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 01:12:57,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:12:57,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 01:12:57,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-25 01:12:57,853 INFO L87 Difference]: Start difference. First operand 579 states and 681 transitions. Second operand 12 states. [2020-09-25 01:12:57,969 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-25 01:12:59,591 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-25 01:13:00,935 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-09-25 01:13:03,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:13:03,661 INFO L93 Difference]: Finished difference Result 1393 states and 1665 transitions. [2020-09-25 01:13:03,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-25 01:13:03,662 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 322 [2020-09-25 01:13:03,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:13:03,669 INFO L225 Difference]: With dead ends: 1393 [2020-09-25 01:13:03,669 INFO L226 Difference]: Without dead ends: 955 [2020-09-25 01:13:03,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=347, Invalid=843, Unknown=0, NotChecked=0, Total=1190 [2020-09-25 01:13:03,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2020-09-25 01:13:03,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 916. [2020-09-25 01:13:03,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 916 states. [2020-09-25 01:13:03,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1094 transitions. [2020-09-25 01:13:03,745 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1094 transitions. Word has length 322 [2020-09-25 01:13:03,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:13:03,746 INFO L479 AbstractCegarLoop]: Abstraction has 916 states and 1094 transitions. [2020-09-25 01:13:03,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 01:13:03,747 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1094 transitions. [2020-09-25 01:13:03,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-09-25 01:13:03,753 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:13:03,754 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:13:03,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:13:03,754 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:13:03,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:13:03,755 INFO L82 PathProgramCache]: Analyzing trace with hash -2141396202, now seen corresponding path program 1 times [2020-09-25 01:13:03,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:13:03,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1929753169] [2020-09-25 01:13:03,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:13:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:13:03,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:13:03,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:13:04,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:13:04,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:13:04,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking...