/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:44:27,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:44:27,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:44:27,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:44:27,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:44:27,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:44:27,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:44:27,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:44:27,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:44:27,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:44:27,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:44:27,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:44:27,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:44:27,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:44:27,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:44:27,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:44:27,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:44:27,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:44:27,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:44:27,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:44:27,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:44:27,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:44:27,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:44:27,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:44:27,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:44:27,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:44:27,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:44:27,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:44:27,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:44:27,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:44:27,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:44:27,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:44:27,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:44:27,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:44:27,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:44:27,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:44:27,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:44:27,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:44:27,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:44:27,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:44:27,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:44:27,520 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 20:44:27,546 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:44:27,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:44:27,550 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:44:27,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:44:27,554 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:44:27,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:44:27,554 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:44:27,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:44:27,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:44:27,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:44:27,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:44:27,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:44:27,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:44:27,556 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:44:27,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:44:27,556 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:44:27,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:44:27,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:44:27,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:44:27,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:44:27,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:44:27,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:44:27,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:44:27,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:44:27,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:44:27,561 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:44:27,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:44:27,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:44:27,561 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:44:27,563 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-09-24 20:44:28,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:44:28,058 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:44:28,062 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:44:28,064 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:44:28,065 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:44:28,067 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2020-09-24 20:44:28,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/148763c47/9a6d5dd5199841c98192579e5083b783/FLAG4272e4ebf [2020-09-24 20:44:28,819 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:44:28,820 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2020-09-24 20:44:28,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/148763c47/9a6d5dd5199841c98192579e5083b783/FLAG4272e4ebf [2020-09-24 20:44:29,146 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/148763c47/9a6d5dd5199841c98192579e5083b783 [2020-09-24 20:44:29,160 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:44:29,166 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:44:29,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:44:29,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:44:29,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:44:29,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:44:29" (1/1) ... [2020-09-24 20:44:29,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14924135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:29, skipping insertion in model container [2020-09-24 20:44:29,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:44:29" (1/1) ... [2020-09-24 20:44:29,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:44:29,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:44:29,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:44:29,708 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:44:29,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:44:29,833 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:44:29,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:29 WrapperNode [2020-09-24 20:44:29,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:44:29,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:44:29,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:44:29,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:44:29,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:29" (1/1) ... [2020-09-24 20:44:29,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:29" (1/1) ... [2020-09-24 20:44:29,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:29" (1/1) ... [2020-09-24 20:44:29,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:29" (1/1) ... [2020-09-24 20:44:29,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:29" (1/1) ... [2020-09-24 20:44:29,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:29" (1/1) ... [2020-09-24 20:44:29,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:29" (1/1) ... [2020-09-24 20:44:29,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:44:29,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:44:29,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:44:29,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:44:29,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:44:29,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:44:29,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:44:29,998 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 20:44:29,998 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2020-09-24 20:44:29,998 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2020-09-24 20:44:29,998 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2020-09-24 20:44:29,999 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2020-09-24 20:44:29,999 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2020-09-24 20:44:29,999 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2020-09-24 20:44:29,999 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2020-09-24 20:44:29,999 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2020-09-24 20:44:30,000 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-09-24 20:44:30,000 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2020-09-24 20:44:30,000 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2020-09-24 20:44:30,000 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2020-09-24 20:44:30,001 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2020-09-24 20:44:30,001 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2020-09-24 20:44:30,002 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-09-24 20:44:30,002 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:44:30,002 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-09-24 20:44:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:44:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 20:44:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-24 20:44:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-09-24 20:44:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-09-24 20:44:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-09-24 20:44:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 20:44:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 20:44:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2020-09-24 20:44:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2020-09-24 20:44:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2020-09-24 20:44:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2020-09-24 20:44:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2020-09-24 20:44:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2020-09-24 20:44:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2020-09-24 20:44:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2020-09-24 20:44:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-09-24 20:44:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2020-09-24 20:44:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2020-09-24 20:44:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2020-09-24 20:44:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2020-09-24 20:44:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2020-09-24 20:44:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-09-24 20:44:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:44:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:44:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:44:31,107 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:44:31,107 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 20:44:31,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:44:31 BoogieIcfgContainer [2020-09-24 20:44:31,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:44:31,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:44:31,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:44:31,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:44:31,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:44:29" (1/3) ... [2020-09-24 20:44:31,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5136e3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:44:31, skipping insertion in model container [2020-09-24 20:44:31,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:44:29" (2/3) ... [2020-09-24 20:44:31,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5136e3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:44:31, skipping insertion in model container [2020-09-24 20:44:31,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:44:31" (3/3) ... [2020-09-24 20:44:31,128 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2020-09-24 20:44:31,142 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:44:31,155 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:44:31,180 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:44:31,225 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:44:31,225 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:44:31,226 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:44:31,227 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:44:31,227 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:44:31,227 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:44:31,227 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:44:31,227 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:44:31,279 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states. [2020-09-24 20:44:31,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-09-24 20:44:31,325 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:44:31,327 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:44:31,328 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:44:31,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:44:31,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1455574608, now seen corresponding path program 1 times [2020-09-24 20:44:31,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:44:31,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281353336] [2020-09-24 20:44:31,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:44:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:31,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:32,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:32,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:32,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:32,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:32,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:33,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:35,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:35,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 20:44:35,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 20:44:35,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3773 [2020-09-24 20:44:35,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:35,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:44:35,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-09-24 20:44:35,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 20:44:35,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 20:44:35,849 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 20:44:35,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:44:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:35,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:35,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:35,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 20:44:35,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:35,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 20:44:35,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:35,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:35,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:35,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 20:44:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:35,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:36,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:44:36,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:36,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 20:44:36,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:36,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:44:36,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:36,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:44:36,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:44:36,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:44:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:36,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:36,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:44:36,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:36,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 20:44:36,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:36,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:44:36,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 20:44:36,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:44:36,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:36,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 20:44:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:36,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:36,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 20:44:36,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:36,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 20:44:36,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:36,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:36,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 20:44:36,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:36,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-24 20:44:36,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:44:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:36,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:36,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:44:36,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:36,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:44:36,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:36,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:36,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:36,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:36,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:36,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 20:44:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:36,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:36,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 20:44:36,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:44:36,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 20:44:36,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:36,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:36,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-24 20:44:36,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:36,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:36,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 20:44:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:36,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:36,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:44:36,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:36,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:44:36,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:36,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:36,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:36,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:36,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:36,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 20:44:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:36,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:36,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 20:44:36,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:44:36,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-24 20:44:36,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:36,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:36,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-24 20:44:36,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:36,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:36,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 20:44:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:36,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:36,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:36,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:44:36,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:36,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:44:36,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:36,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:36,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:36,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:36,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:36,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:44:36,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281353336] [2020-09-24 20:44:36,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:44:36,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 20:44:36,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478182038] [2020-09-24 20:44:36,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 20:44:36,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:44:36,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 20:44:36,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-09-24 20:44:36,898 INFO L87 Difference]: Start difference. First operand 577 states. Second operand 14 states. [2020-09-24 20:44:37,608 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-24 20:44:37,968 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-09-24 20:44:38,182 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-09-24 20:44:42,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:44:42,407 INFO L93 Difference]: Finished difference Result 1058 states and 1321 transitions. [2020-09-24 20:44:42,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 20:44:42,409 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 228 [2020-09-24 20:44:42,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:44:42,451 INFO L225 Difference]: With dead ends: 1058 [2020-09-24 20:44:42,451 INFO L226 Difference]: Without dead ends: 581 [2020-09-24 20:44:42,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2020-09-24 20:44:42,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2020-09-24 20:44:42,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 553. [2020-09-24 20:44:42,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2020-09-24 20:44:42,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 646 transitions. [2020-09-24 20:44:42,663 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 646 transitions. Word has length 228 [2020-09-24 20:44:42,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:44:42,666 INFO L479 AbstractCegarLoop]: Abstraction has 553 states and 646 transitions. [2020-09-24 20:44:42,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 20:44:42,666 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 646 transitions. [2020-09-24 20:44:42,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-24 20:44:42,678 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:44:42,678 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:44:42,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:44:42,679 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:44:42,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:44:42,680 INFO L82 PathProgramCache]: Analyzing trace with hash 503549649, now seen corresponding path program 1 times [2020-09-24 20:44:42,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:44:42,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2100079375] [2020-09-24 20:44:42,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:44:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:42,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:43,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:43,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-09-24 20:44:43,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:43,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 658 [2020-09-24 20:44:43,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:43,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:44:43,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-09-24 20:44:43,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:44:43,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:43,661 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 20:44:43,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:44:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:43,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:43,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:43,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 20:44:43,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:43,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 20:44:43,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:43,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:43,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:43,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:43,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:43,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 20:44:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:43,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:43,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:43,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:44:43,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:43,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:44:43,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:43,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:43,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:43,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:43,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:43,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-24 20:44:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:43,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:43,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:43,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:44:43,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:43,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:44:43,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:43,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:43,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:43,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 20:44:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:43,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:43,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:43,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 20:44:43,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:43,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 20:44:43,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:43,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:43,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:43,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:43,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:43,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:44:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:43,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:43,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:43,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:44:43,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:43,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:44:43,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:43,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:43,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:43,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:43,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:43,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 20:44:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:43,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:43,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:43,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 20:44:43,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:43,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 20:44:43,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:43,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:43,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:43,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:43,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:43,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 20:44:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:43,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:43,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:43,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:44:43,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:43,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:44:43,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:43,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:43,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:43,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:43,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:43,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 20:44:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:43,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:44,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:44,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 20:44:44,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:44,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 20:44:44,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:44,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:44,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:44,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:44,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:44,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 20:44:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:44,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:44,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:44,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:44:44,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:44,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:44:44,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:44,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:44,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:44,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:44,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:44,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:44:44,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2100079375] [2020-09-24 20:44:44,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:44:44,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 20:44:44,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034129898] [2020-09-24 20:44:44,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 20:44:44,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:44:44,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 20:44:44,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:44:44,166 INFO L87 Difference]: Start difference. First operand 553 states and 646 transitions. Second operand 11 states. [2020-09-24 20:44:45,977 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-24 20:44:46,155 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-24 20:44:47,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:44:47,767 INFO L93 Difference]: Finished difference Result 982 states and 1173 transitions. [2020-09-24 20:44:47,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 20:44:47,769 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 239 [2020-09-24 20:44:47,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:44:47,775 INFO L225 Difference]: With dead ends: 982 [2020-09-24 20:44:47,775 INFO L226 Difference]: Without dead ends: 558 [2020-09-24 20:44:47,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2020-09-24 20:44:47,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2020-09-24 20:44:47,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2020-09-24 20:44:47,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-09-24 20:44:47,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 650 transitions. [2020-09-24 20:44:47,813 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 650 transitions. Word has length 239 [2020-09-24 20:44:47,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:44:47,814 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 650 transitions. [2020-09-24 20:44:47,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 20:44:47,815 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 650 transitions. [2020-09-24 20:44:47,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-09-24 20:44:47,820 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:44:47,821 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:44:47,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:44:47,821 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:44:47,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:44:47,822 INFO L82 PathProgramCache]: Analyzing trace with hash -734642201, now seen corresponding path program 1 times [2020-09-24 20:44:47,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:44:47,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018561077] [2020-09-24 20:44:47,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:44:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:48,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:48,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:48,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:52,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:52,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 349 [2020-09-24 20:44:52,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:44:52,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4548 [2020-09-24 20:44:52,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:52,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:44:52,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:44:52,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-09-24 20:44:52,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:52,735 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 20:44:52,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:44:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:52,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:52,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:52,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 20:44:52,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:52,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-24 20:44:52,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:52,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:44:52,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:52,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 20:44:52,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:52,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 20:44:52,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:52,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:52,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:52,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:44:52,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:52,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 20:44:52,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:52,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:44:52,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:52,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 20:44:52,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:52,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-24 20:44:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:52,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:52,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:52,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:44:52,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:52,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:44:52,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:52,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:44:52,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:52,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:44:52,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:52,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 20:44:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:52,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:53,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:53,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 20:44:53,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:53,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 20:44:53,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:53,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:44:53,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:53,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 20:44:53,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:53,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:44:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:53,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:53,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:53,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:44:53,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:53,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:44:53,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:53,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:53,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:53,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:53,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:53,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 20:44:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:53,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:53,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:53,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 20:44:53,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:53,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 20:44:53,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:53,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:44:53,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:53,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 20:44:53,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:53,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 20:44:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:53,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:53,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:53,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:44:53,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:53,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:44:53,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:53,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:53,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:53,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:53,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:44:53,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 20:44:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:53,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:53,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:53,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 20:44:53,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:53,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 20:44:53,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:53,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:44:53,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:53,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 20:44:53,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:53,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 20:44:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:53,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:53,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:53,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:44:53,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:53,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:44:53,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:53,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:53,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:53,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:53,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:53,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-24 20:44:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:53,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:53,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:53,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 20:44:53,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:53,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-24 20:44:53,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:53,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:44:53,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:44:53,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 20:44:53,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:53,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:44:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:53,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:53,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:53,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:44:53,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:53,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:44:53,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:53,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:44:53,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:53,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:44:53,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:53,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 20:44:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:53,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:53,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:53,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:44:53,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:53,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 20:44:53,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:53,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:44:53,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:44:53,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:44:53,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:53,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2020-09-24 20:44:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:44:53,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:44:53,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:44:53,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:44:53,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:44:53,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:44:53,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:44:53,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:44:53,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:44:53,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:44:53,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:44:53,844 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 20:44:53,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018561077] [2020-09-24 20:44:53,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:44:53,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-09-24 20:44:53,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78948845] [2020-09-24 20:44:53,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 20:44:53,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:44:53,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 20:44:53,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:44:53,848 INFO L87 Difference]: Start difference. First operand 558 states and 650 transitions. Second operand 17 states. [2020-09-24 20:44:54,485 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-24 20:44:56,791 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 139 [2020-09-24 20:44:56,926 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-09-24 20:44:57,271 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-09-24 20:44:57,814 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-24 20:44:59,916 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-09-24 20:45:00,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:45:00,505 INFO L93 Difference]: Finished difference Result 1187 states and 1396 transitions. [2020-09-24 20:45:00,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-24 20:45:00,506 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 312 [2020-09-24 20:45:00,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:45:00,515 INFO L225 Difference]: With dead ends: 1187 [2020-09-24 20:45:00,515 INFO L226 Difference]: Without dead ends: 758 [2020-09-24 20:45:00,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=597, Invalid=1755, Unknown=0, NotChecked=0, Total=2352 [2020-09-24 20:45:00,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2020-09-24 20:45:00,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 750. [2020-09-24 20:45:00,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2020-09-24 20:45:00,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 867 transitions. [2020-09-24 20:45:00,578 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 867 transitions. Word has length 312 [2020-09-24 20:45:00,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:45:00,579 INFO L479 AbstractCegarLoop]: Abstraction has 750 states and 867 transitions. [2020-09-24 20:45:00,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 20:45:00,580 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 867 transitions. [2020-09-24 20:45:00,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-09-24 20:45:00,584 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:45:00,585 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:45:00,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:45:00,585 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:45:00,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:45:00,586 INFO L82 PathProgramCache]: Analyzing trace with hash 679708041, now seen corresponding path program 1 times [2020-09-24 20:45:00,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:45:00,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357912205] [2020-09-24 20:45:00,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:45:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:00,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:01,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:01,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:02,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:05,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:05,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 350 [2020-09-24 20:45:05,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:45:05,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 20:45:05,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:05,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:45:05,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-09-24 20:45:05,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-24 20:45:05,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:45:05,887 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 20:45:05,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:45:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:05,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:05,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:05,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 20:45:05,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:05,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 20:45:05,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:05,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:45:05,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:05,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:45:05,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:45:05,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 20:45:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:05,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:05,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:05,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:45:05,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:05,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:45:05,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:05,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:45:05,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:45:05,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:45:05,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-24 20:45:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:05,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:05,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:05,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:45:05,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:05,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:45:05,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:05,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:45:05,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:05,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:45:05,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:45:06,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 20:45:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 20:45:06,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 20:45:06,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:45:06,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:06,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 20:45:06,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:45:06,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 20:45:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:45:06,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:45:06,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:45:06,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:06,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:45:06,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:45:06,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 20:45:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 20:45:06,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 20:45:06,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:45:06,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:06,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 20:45:06,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:45:06,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 20:45:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:45:06,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:45:06,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:45:06,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:06,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:45:06,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:45:06,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 20:45:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 20:45:06,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 20:45:06,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:45:06,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:06,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 20:45:06,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:45:06,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 20:45:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:45:06,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:45:06,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:45:06,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:06,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:45:06,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:45:06,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-24 20:45:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-24 20:45:06,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 20:45:06,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:45:06,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:45:06,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-24 20:45:06,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:45:06,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:45:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:45:06,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:45:06,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:45:06,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:06,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:45:06,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:45:06,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-24 20:45:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:45:06,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 20:45:06,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:45:06,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:45:06,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:45:06,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:45:06,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-09-24 20:45:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:06,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:06,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:45:06,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:45:06,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:45:06,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:45:06,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:45:06,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:45:06,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:45:06,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:45:06,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:45:06,863 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 20:45:06,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357912205] [2020-09-24 20:45:06,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:45:06,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-09-24 20:45:06,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942549768] [2020-09-24 20:45:06,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-24 20:45:06,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:45:06,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-24 20:45:06,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2020-09-24 20:45:06,867 INFO L87 Difference]: Start difference. First operand 750 states and 867 transitions. Second operand 18 states. [2020-09-24 20:45:08,206 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-09-24 20:45:08,790 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-09-24 20:45:09,976 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-24 20:45:10,331 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 136 [2020-09-24 20:45:10,749 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 141 [2020-09-24 20:45:11,173 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2020-09-24 20:45:11,388 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 100 [2020-09-24 20:45:13,889 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-09-24 20:45:14,021 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-09-24 20:45:14,151 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-09-24 20:45:14,285 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-24 20:45:14,452 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-09-24 20:45:15,223 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-09-24 20:45:15,496 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-09-24 20:45:15,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:45:15,842 INFO L93 Difference]: Finished difference Result 1211 states and 1428 transitions. [2020-09-24 20:45:15,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-09-24 20:45:15,843 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 313 [2020-09-24 20:45:15,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:45:15,850 INFO L225 Difference]: With dead ends: 1211 [2020-09-24 20:45:15,850 INFO L226 Difference]: Without dead ends: 775 [2020-09-24 20:45:15,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=730, Invalid=2240, Unknown=0, NotChecked=0, Total=2970 [2020-09-24 20:45:15,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2020-09-24 20:45:15,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 769. [2020-09-24 20:45:15,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2020-09-24 20:45:15,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 887 transitions. [2020-09-24 20:45:15,935 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 887 transitions. Word has length 313 [2020-09-24 20:45:15,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:45:15,935 INFO L479 AbstractCegarLoop]: Abstraction has 769 states and 887 transitions. [2020-09-24 20:45:15,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-24 20:45:15,936 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 887 transitions. [2020-09-24 20:45:15,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-09-24 20:45:15,941 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:45:15,941 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:45:15,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:45:15,942 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:45:15,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:45:15,942 INFO L82 PathProgramCache]: Analyzing trace with hash 989247084, now seen corresponding path program 1 times [2020-09-24 20:45:15,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:45:15,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [341834603] [2020-09-24 20:45:15,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:45:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:45:16,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:16,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:45:16,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking...