/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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 19:36:01,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:36:01,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:36:01,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:36:01,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:36:01,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:36:01,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:36:01,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:36:01,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:36:01,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:36:01,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:36:01,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:36:01,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:36:01,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:36:01,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:36:01,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:36:01,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:36:01,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:36:01,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:36:01,529 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:36:01,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:36:01,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:36:01,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:36:01,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:36:01,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:36:01,538 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:36:01,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:36:01,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:36:01,540 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:36:01,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:36:01,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:36:01,543 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:36:01,544 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:36:01,545 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:36:01,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:36:01,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:36:01,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:36:01,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:36:01,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:36:01,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:36:01,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:36:01,550 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 19:36:01,598 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:36:01,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:36:01,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:36:01,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:36:01,601 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:36:01,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:36:01,602 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:36:01,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:36:01,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:36:01,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:36:01,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:36:01,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:36:01,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:36:01,605 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:36:01,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:36:01,605 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:36:01,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:36:01,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:36:01,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:36:01,606 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:36:01,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:36:01,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:36:01,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:36:01,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:36:01,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:36:01,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:36:01,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:36:01,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:36:01,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:36:01,608 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:36:02,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:36:02,051 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:36:02,056 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:36:02,058 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:36:02,059 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:36:02,060 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2020-09-24 19:36:02,150 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e6dbe949/cdb37a3c781a4993a7bc09f994d9458a/FLAG55651ea5d [2020-09-24 19:36:02,768 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:36:02,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2020-09-24 19:36:02,785 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e6dbe949/cdb37a3c781a4993a7bc09f994d9458a/FLAG55651ea5d [2020-09-24 19:36:03,052 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e6dbe949/cdb37a3c781a4993a7bc09f994d9458a [2020-09-24 19:36:03,064 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:36:03,070 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:36:03,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:36:03,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:36:03,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:36:03,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:36:03" (1/1) ... [2020-09-24 19:36:03,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:36:03, skipping insertion in model container [2020-09-24 19:36:03,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:36:03" (1/1) ... [2020-09-24 19:36:03,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:36:03,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:36:03,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:36:03,513 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:36:03,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:36:03,728 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:36:03,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:36:03 WrapperNode [2020-09-24 19:36:03,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:36:03,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:36:03,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:36:03,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:36:03,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:36:03" (1/1) ... [2020-09-24 19:36:03,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:36:03" (1/1) ... [2020-09-24 19:36:03,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:36:03" (1/1) ... [2020-09-24 19:36:03,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:36:03" (1/1) ... [2020-09-24 19:36:03,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:36:03" (1/1) ... [2020-09-24 19:36:03,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:36:03" (1/1) ... [2020-09-24 19:36:03,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:36:03" (1/1) ... [2020-09-24 19:36:03,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:36:03,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:36:03,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:36:03,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:36:03,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:36:03" (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 19:36:03,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:36:03,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:36:03,909 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 19:36:03,910 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2020-09-24 19:36:03,910 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2020-09-24 19:36:03,910 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2020-09-24 19:36:03,910 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2020-09-24 19:36:03,910 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2020-09-24 19:36:03,911 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2020-09-24 19:36:03,911 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2020-09-24 19:36:03,911 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2020-09-24 19:36:03,911 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-09-24 19:36:03,912 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2020-09-24 19:36:03,912 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2020-09-24 19:36:03,912 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2020-09-24 19:36:03,912 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2020-09-24 19:36:03,912 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2020-09-24 19:36:03,913 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-09-24 19:36:03,913 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:36:03,913 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-09-24 19:36:03,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:36:03,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 19:36:03,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-24 19:36:03,914 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-09-24 19:36:03,914 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-09-24 19:36:03,915 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-09-24 19:36:03,915 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 19:36:03,915 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 19:36:03,915 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2020-09-24 19:36:03,915 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2020-09-24 19:36:03,915 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2020-09-24 19:36:03,916 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2020-09-24 19:36:03,916 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2020-09-24 19:36:03,916 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2020-09-24 19:36:03,916 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2020-09-24 19:36:03,916 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2020-09-24 19:36:03,916 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-09-24 19:36:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2020-09-24 19:36:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2020-09-24 19:36:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2020-09-24 19:36:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2020-09-24 19:36:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2020-09-24 19:36:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-09-24 19:36:03,918 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:36:03,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:36:03,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:36:04,980 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:36:04,980 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 19:36:04,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:36:04 BoogieIcfgContainer [2020-09-24 19:36:04,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:36:04,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:36:04,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:36:04,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:36:04,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:36:03" (1/3) ... [2020-09-24 19:36:04,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ed2c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:36:04, skipping insertion in model container [2020-09-24 19:36:04,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:36:03" (2/3) ... [2020-09-24 19:36:04,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ed2c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:36:04, skipping insertion in model container [2020-09-24 19:36:04,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:36:04" (3/3) ... [2020-09-24 19:36:05,000 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2020-09-24 19:36:05,012 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:36:05,024 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:36:05,046 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:36:05,082 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:36:05,082 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:36:05,082 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:36:05,082 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:36:05,082 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:36:05,083 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:36:05,083 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:36:05,083 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:36:05,121 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states. [2020-09-24 19:36:05,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-09-24 19:36:05,145 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:36:05,147 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 19:36:05,147 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:36:05,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:36:05,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1455574608, now seen corresponding path program 1 times [2020-09-24 19:36:05,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:36:05,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660754561] [2020-09-24 19:36:05,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:36:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:05,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:05,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:06,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:06,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:06,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:06,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:06,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 19:36:06,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:36:06,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1025 [2020-09-24 19:36:06,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:06,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:06,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 222 [2020-09-24 19:36:06,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:06,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:36:06,854 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 19:36:06,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:36:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:06,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:06,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:06,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 19:36:06,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:06,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 19:36:06,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:06,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:06,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:06,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:06,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:06,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 19:36:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:06,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:06,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:06,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:36:06,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:06,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:36:06,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:06,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:06,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:06,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:06,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:06,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:36:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:07,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:07,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:07,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:36:07,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:07,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:36:07,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:07,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:07,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:07,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:07,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 19:36:07,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 19:36:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:07,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:07,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:07,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 19:36:07,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:07,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 19:36:07,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:07,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:07,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:07,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:07,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:07,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 19:36:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:07,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:07,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:07,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:07,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:07,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:36:07,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:07,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:07,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:07,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:07,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:07,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:36:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:07,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:07,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:07,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:07,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:07,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:07,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 19:36:07,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:36:07,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 19:36:07,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:07,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:07,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 19:36:07,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:07,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:07,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 19:36:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:07,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:07,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:07,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:07,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:07,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:36:07,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:07,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:07,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:07,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:07,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:07,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 19:36:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:07,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:07,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:07,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:07,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 19:36:07,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:36:07,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 19:36:07,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 19:36:07,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:07,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:07,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 19:36:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:07,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:07,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:07,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:07,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:07,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:36:07,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:07,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:07,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:07,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:07,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:07,551 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 19:36:07,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660754561] [2020-09-24 19:36:07,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:36:07,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:36:07,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817006321] [2020-09-24 19:36:07,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:36:07,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:36:07,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:36:07,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:36:07,586 INFO L87 Difference]: Start difference. First operand 577 states. Second operand 9 states. [2020-09-24 19:36:10,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:36:10,421 INFO L93 Difference]: Finished difference Result 1024 states and 1272 transitions. [2020-09-24 19:36:10,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 19:36:10,423 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 228 [2020-09-24 19:36:10,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:36:10,445 INFO L225 Difference]: With dead ends: 1024 [2020-09-24 19:36:10,445 INFO L226 Difference]: Without dead ends: 565 [2020-09-24 19:36:10,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2020-09-24 19:36:10,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-09-24 19:36:10,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 565. [2020-09-24 19:36:10,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 565 states. [2020-09-24 19:36:10,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 670 transitions. [2020-09-24 19:36:10,594 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 670 transitions. Word has length 228 [2020-09-24 19:36:10,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:36:10,598 INFO L479 AbstractCegarLoop]: Abstraction has 565 states and 670 transitions. [2020-09-24 19:36:10,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:36:10,598 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 670 transitions. [2020-09-24 19:36:10,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-09-24 19:36:10,605 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:36:10,606 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 19:36:10,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:36:10,607 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:36:10,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:36:10,607 INFO L82 PathProgramCache]: Analyzing trace with hash -839714288, now seen corresponding path program 1 times [2020-09-24 19:36:10,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:36:10,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [202415495] [2020-09-24 19:36:10,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:36:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:10,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:11,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:11,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:11,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 19:36:11,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:36:11,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-09-24 19:36:11,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:11,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:36:11,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 245 [2020-09-24 19:36:11,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:36:11,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:11,885 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 19:36:11,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:36:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:11,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:11,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:11,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 19:36:11,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:11,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 19:36:11,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:11,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:11,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:11,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:11,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:11,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 19:36:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:11,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:11,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:11,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:36:11,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:11,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:36:11,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:11,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:11,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:11,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:11,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:11,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:36:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:11,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:11,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:11,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:36:11,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:11,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:36:11,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:11,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:11,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:11,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:11,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:11,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 19:36:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:12,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:12,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:12,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 19:36:12,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:12,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 19:36:12,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:12,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:12,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:12,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:12,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:12,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 19:36:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:12,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:12,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:12,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:12,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:12,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:36:12,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:12,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:12,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:12,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:12,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:12,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:36:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:12,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:12,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:12,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 19:36:12,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:12,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 19:36:12,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:12,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:12,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:12,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:12,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:12,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 19:36:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:12,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:12,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:12,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:12,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:12,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:36:12,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:12,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:12,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:12,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:12,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:12,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 19:36:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:12,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:12,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:12,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 19:36:12,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:12,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 19:36:12,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:12,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:12,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:12,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:12,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:12,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 19:36:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:12,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:12,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:12,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:12,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:12,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:36:12,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:12,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:12,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:12,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:12,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:12,391 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 19:36:12,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [202415495] [2020-09-24 19:36:12,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:36:12,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:36:12,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488499825] [2020-09-24 19:36:12,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:36:12,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:36:12,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:36:12,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:36:12,397 INFO L87 Difference]: Start difference. First operand 565 states and 670 transitions. Second operand 11 states. [2020-09-24 19:36:14,785 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-24 19:36:14,998 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-09-24 19:36:16,126 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-24 19:36:16,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:36:16,901 INFO L93 Difference]: Finished difference Result 996 states and 1200 transitions. [2020-09-24 19:36:16,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 19:36:16,901 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 228 [2020-09-24 19:36:16,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:36:16,910 INFO L225 Difference]: With dead ends: 996 [2020-09-24 19:36:16,911 INFO L226 Difference]: Without dead ends: 572 [2020-09-24 19:36:16,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=201, Invalid=399, Unknown=0, NotChecked=0, Total=600 [2020-09-24 19:36:16,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2020-09-24 19:36:16,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 570. [2020-09-24 19:36:16,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2020-09-24 19:36:16,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 674 transitions. [2020-09-24 19:36:16,973 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 674 transitions. Word has length 228 [2020-09-24 19:36:16,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:36:16,975 INFO L479 AbstractCegarLoop]: Abstraction has 570 states and 674 transitions. [2020-09-24 19:36:16,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:36:16,975 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 674 transitions. [2020-09-24 19:36:16,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-09-24 19:36:16,990 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:36:16,991 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:36:16,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:36:16,993 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:36:16,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:36:16,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1393853320, now seen corresponding path program 1 times [2020-09-24 19:36:16,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:36:16,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2084202696] [2020-09-24 19:36:16,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:36:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:17,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:17,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:18,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:18,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-09-24 19:36:18,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:36:18,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-09-24 19:36:18,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:18,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:36:18,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-09-24 19:36:18,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 19:36:18,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:18,243 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 19:36:18,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:36:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:18,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:18,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:18,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 19:36:18,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:18,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 19:36:18,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:18,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:18,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:18,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:18,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:18,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 19:36:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:18,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:18,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:18,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:36:18,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:18,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:36:18,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:18,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:36:18,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:18,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:36:18,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:18,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:36:18,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:18,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:18,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:18,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:36:18,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:18,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:36:18,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:18,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:36:18,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:36:18,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:36:18,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:18,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 19:36:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:18,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:18,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:18,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 19:36:18,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:18,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 19:36:18,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 19:36:18,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:18,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:36:18,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 19:36:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:18,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:18,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:18,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:18,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:18,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:36:18,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:18,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:18,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:18,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:18,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:18,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:36:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:18,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:18,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:18,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 19:36:18,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:18,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 19:36:18,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:18,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:18,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 19:36:18,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:18,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:18,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 19:36:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:18,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:18,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:18,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:18,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:18,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 19:36:18,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:18,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:18,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:18,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:18,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:18,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 19:36:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:18,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:18,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:18,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 19:36:18,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:18,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 19:36:18,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:18,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:18,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 19:36:18,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:18,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:18,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 19:36:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:18,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:18,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:18,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:18,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:18,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:36:18,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:18,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:18,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:18,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:18,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:18,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-24 19:36:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:18,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:18,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:18,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 19:36:18,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:18,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 19:36:18,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:18,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:18,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-24 19:36:18,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:18,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:18,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 19:36:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:18,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:18,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:18,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:36:18,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:18,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 19:36:18,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:18,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:18,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 19:36:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:18,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:18,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:18,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:18,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:18,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:36:18,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:18,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:18,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:18,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:18,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:18,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-09-24 19:36:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:18,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:18,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:18,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:36:18,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:18,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:36:18,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:18,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:18,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:36:18,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:18,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:19,147 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 19:36:19,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2084202696] [2020-09-24 19:36:19,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:36:19,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-24 19:36:19,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114441155] [2020-09-24 19:36:19,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 19:36:19,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:36:19,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 19:36:19,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-09-24 19:36:19,151 INFO L87 Difference]: Start difference. First operand 570 states and 674 transitions. Second operand 16 states. [2020-09-24 19:36:19,284 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-24 19:36:20,109 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-24 19:36:20,476 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-24 19:36:20,670 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-24 19:36:23,005 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-09-24 19:36:25,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:36:25,042 INFO L93 Difference]: Finished difference Result 1050 states and 1252 transitions. [2020-09-24 19:36:25,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-24 19:36:25,043 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 301 [2020-09-24 19:36:25,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:36:25,048 INFO L225 Difference]: With dead ends: 1050 [2020-09-24 19:36:25,049 INFO L226 Difference]: Without dead ends: 586 [2020-09-24 19:36:25,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=329, Invalid=931, Unknown=0, NotChecked=0, Total=1260 [2020-09-24 19:36:25,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2020-09-24 19:36:25,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 558. [2020-09-24 19:36:25,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-09-24 19:36:25,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 650 transitions. [2020-09-24 19:36:25,087 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 650 transitions. Word has length 301 [2020-09-24 19:36:25,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:36:25,088 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 650 transitions. [2020-09-24 19:36:25,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-24 19:36:25,088 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 650 transitions. [2020-09-24 19:36:25,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-09-24 19:36:25,093 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:36:25,094 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 19:36:25,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:36:25,094 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:36:25,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:36:25,095 INFO L82 PathProgramCache]: Analyzing trace with hash -734642201, now seen corresponding path program 1 times [2020-09-24 19:36:25,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:36:25,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323157151] [2020-09-24 19:36:25,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:36:25,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:25,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:25,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:26,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:26,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:26,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 349 [2020-09-24 19:36:26,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:36:26,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1133 [2020-09-24 19:36:26,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:26,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:36:26,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 195 [2020-09-24 19:36:26,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-24 19:36:26,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:26,513 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 19:36:26,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:36:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:26,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:26,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:26,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 19:36:26,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:26,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 19:36:26,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:26,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:26,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:26,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:26,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:26,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 19:36:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:26,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:26,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:26,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:36:26,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:26,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:36:26,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:26,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:26,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:26,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:26,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:26,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-24 19:36:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:26,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:26,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:26,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:36:26,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:26,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:36:26,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:26,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:26,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:26,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:26,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:26,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:36:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:26,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:26,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:26,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 19:36:26,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:26,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:36:26,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:26,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:26,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:26,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:26,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:26,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 19:36:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:26,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:26,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:26,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:26,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:26,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:36:26,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:26,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:26,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:26,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:26,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:26,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 19:36:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:26,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:26,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:26,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 19:36:26,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:26,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 19:36:26,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:26,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:36:26,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:26,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 19:36:26,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:26,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 19:36:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:26,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:26,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:26,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:26,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:26,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:36:26,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:26,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:26,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:26,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:26,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:26,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 19:36:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:26,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:26,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:26,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 19:36:26,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:26,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 19:36:26,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:26,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:36:26,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:26,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:36:26,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:26,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 19:36:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:26,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:26,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:26,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:26,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:26,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:36:26,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:26,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:26,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:26,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:26,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:26,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-24 19:36:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:27,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:27,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:27,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 19:36:27,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:27,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 19:36:27,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:27,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:36:27,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:27,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 19:36:27,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:27,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 19:36:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:27,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:27,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:27,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:36:27,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:27,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:36:27,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:27,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:27,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:27,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:27,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:27,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 19:36:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:27,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:27,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:27,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:27,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:27,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:36:27,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:27,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:27,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:27,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:27,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:27,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2020-09-24 19:36:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:27,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:27,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:27,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:36:27,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:27,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:36:27,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:27,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:27,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:36:27,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:27,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:27,237 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 19:36:27,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [323157151] [2020-09-24 19:36:27,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:36:27,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 19:36:27,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132773433] [2020-09-24 19:36:27,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 19:36:27,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:36:27,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 19:36:27,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:36:27,241 INFO L87 Difference]: Start difference. First operand 558 states and 650 transitions. Second operand 12 states. [2020-09-24 19:36:29,231 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-24 19:36:33,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:36:33,104 INFO L93 Difference]: Finished difference Result 1354 states and 1620 transitions. [2020-09-24 19:36:33,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-24 19:36:33,105 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 312 [2020-09-24 19:36:33,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:36:33,111 INFO L225 Difference]: With dead ends: 1354 [2020-09-24 19:36:33,111 INFO L226 Difference]: Without dead ends: 925 [2020-09-24 19:36:33,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=347, Invalid=843, Unknown=0, NotChecked=0, Total=1190 [2020-09-24 19:36:33,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2020-09-24 19:36:33,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 883. [2020-09-24 19:36:33,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 883 states. [2020-09-24 19:36:33,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1053 transitions. [2020-09-24 19:36:33,174 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1053 transitions. Word has length 312 [2020-09-24 19:36:33,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:36:33,175 INFO L479 AbstractCegarLoop]: Abstraction has 883 states and 1053 transitions. [2020-09-24 19:36:33,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 19:36:33,175 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1053 transitions. [2020-09-24 19:36:33,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-09-24 19:36:33,180 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:36:33,180 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 19:36:33,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:36:33,181 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:36:33,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:36:33,181 INFO L82 PathProgramCache]: Analyzing trace with hash 572416653, now seen corresponding path program 1 times [2020-09-24 19:36:33,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:36:33,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870533709] [2020-09-24 19:36:33,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:36:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:33,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:33,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:34,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:34,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:34,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 350 [2020-09-24 19:36:34,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:36:34,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1035 [2020-09-24 19:36:34,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:34,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:36:34,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-09-24 19:36:34,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 19:36:34,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:34,582 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 19:36:34,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:36:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:34,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:34,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:34,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 19:36:34,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:34,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 19:36:34,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:34,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:34,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:34,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:34,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:34,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 19:36:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:34,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:34,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:34,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:36:34,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:34,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:36:34,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:34,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:34,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:34,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:34,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:34,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-24 19:36:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:34,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:34,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:34,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:36:34,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:34,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:36:34,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:34,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:34,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:34,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:34,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:34,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:36:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:34,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:34,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:34,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 19:36:34,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:34,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:36:34,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:34,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:34,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:34,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:34,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:34,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 19:36:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:34,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:34,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:34,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:34,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:34,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:36:34,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:34,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:34,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:34,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:34,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:34,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 19:36:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:34,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:34,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:34,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 19:36:34,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:34,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 19:36:34,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:34,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:34,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:34,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:34,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:34,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 19:36:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:34,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:34,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:34,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:34,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:34,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:36:34,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:34,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:34,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:34,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:34,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:34,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 19:36:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:34,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:34,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:34,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 19:36:34,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:34,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 19:36:34,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:34,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:36:34,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:34,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 19:36:34,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:34,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 19:36:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:34,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:34,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:34,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:34,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:34,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:36:34,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:34,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:34,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:35,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-24 19:36:35,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:35,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:35,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:35,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 19:36:35,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:35,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 19:36:35,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:35,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:36:35,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:35,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 19:36:35,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:35,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 19:36:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:35,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:35,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:35,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:36:35,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:35,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:36:35,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:35,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:35,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:35,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:35,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:35,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 19:36:35,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:35,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:35,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:35,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:35,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:35,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:36:35,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:35,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:35,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:35,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:35,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:35,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-09-24 19:36:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:35,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:35,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:35,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:36:35,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:35,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:36:35,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:35,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:35,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:36:35,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:35,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:35,349 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 19:36:35,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870533709] [2020-09-24 19:36:35,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:36:35,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 19:36:35,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691550299] [2020-09-24 19:36:35,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 19:36:35,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:36:35,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 19:36:35,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:36:35,352 INFO L87 Difference]: Start difference. First operand 883 states and 1053 transitions. Second operand 12 states. [2020-09-24 19:36:37,814 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-24 19:36:38,098 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-09-24 19:36:41,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:36:41,305 INFO L93 Difference]: Finished difference Result 2265 states and 2759 transitions. [2020-09-24 19:36:41,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-24 19:36:41,306 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 313 [2020-09-24 19:36:41,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:36:41,316 INFO L225 Difference]: With dead ends: 2265 [2020-09-24 19:36:41,316 INFO L226 Difference]: Without dead ends: 1511 [2020-09-24 19:36:41,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=348, Invalid=842, Unknown=0, NotChecked=0, Total=1190 [2020-09-24 19:36:41,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2020-09-24 19:36:41,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1491. [2020-09-24 19:36:41,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1491 states. [2020-09-24 19:36:41,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 1810 transitions. [2020-09-24 19:36:41,459 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 1810 transitions. Word has length 313 [2020-09-24 19:36:41,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:36:41,460 INFO L479 AbstractCegarLoop]: Abstraction has 1491 states and 1810 transitions. [2020-09-24 19:36:41,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 19:36:41,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 1810 transitions. [2020-09-24 19:36:41,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-09-24 19:36:41,464 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:36:41,465 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 19:36:41,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:36:41,465 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:36:41,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:36:41,466 INFO L82 PathProgramCache]: Analyzing trace with hash -731497747, now seen corresponding path program 1 times [2020-09-24 19:36:41,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:36:41,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366492632] [2020-09-24 19:36:41,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:36:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:41,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:42,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:42,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:42,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 350 [2020-09-24 19:36:42,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:36:42,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1022 [2020-09-24 19:36:42,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:42,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:36:42,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 338 [2020-09-24 19:36:42,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:36:42,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:42,817 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 19:36:42,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:36:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:42,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:42,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:42,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 19:36:42,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:42,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 19:36:42,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:42,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:42,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:42,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:42,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:42,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 19:36:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:42,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:42,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:42,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:36:42,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:42,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:36:42,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:42,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:42,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:42,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:42,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:42,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-24 19:36:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:42,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:42,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:42,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:36:42,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:42,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:36:42,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:42,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:42,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:42,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:42,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:42,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:36:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:42,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:42,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:42,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 19:36:42,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:42,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:36:42,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:42,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:42,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:42,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:42,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:42,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 19:36:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:42,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:42,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:42,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:42,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:42,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:36:42,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:42,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:43,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 19:36:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:43,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:43,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:43,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 19:36:43,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:43,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 19:36:43,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:43,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:43,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:43,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:43,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:43,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 19:36:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:43,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:43,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:43,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:43,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:43,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:36:43,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:43,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:43,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:43,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:43,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:43,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 19:36:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:43,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:43,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:43,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 19:36:43,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:43,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 19:36:43,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:43,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:43,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:43,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:43,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:43,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 19:36:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:43,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:43,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:43,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:43,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:43,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:36:43,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:43,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:43,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:43,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:43,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:43,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-24 19:36:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:43,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:43,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:43,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 19:36:43,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:43,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:36:43,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:43,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:43,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:43,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:43,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:43,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 19:36:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:43,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:43,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:43,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:36:43,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:43,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:36:43,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:43,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:43,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:43,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:43,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:43,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 19:36:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:43,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:43,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:43,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:43,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:43,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:36:43,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:43,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:43,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:43,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:43,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:43,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-09-24 19:36:43,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:43,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:43,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:43,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:36:43,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:43,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:36:43,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:43,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:43,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:43,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:43,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:43,348 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 19:36:43,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366492632] [2020-09-24 19:36:43,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:36:43,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 19:36:43,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920231425] [2020-09-24 19:36:43,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 19:36:43,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:36:43,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 19:36:43,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-09-24 19:36:43,351 INFO L87 Difference]: Start difference. First operand 1491 states and 1810 transitions. Second operand 13 states. [2020-09-24 19:36:43,483 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-24 19:36:46,447 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-24 19:36:46,657 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-09-24 19:36:48,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:36:48,124 INFO L93 Difference]: Finished difference Result 2877 states and 3530 transitions. [2020-09-24 19:36:48,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-24 19:36:48,125 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 313 [2020-09-24 19:36:48,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:36:48,133 INFO L225 Difference]: With dead ends: 2877 [2020-09-24 19:36:48,134 INFO L226 Difference]: Without dead ends: 1515 [2020-09-24 19:36:48,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2020-09-24 19:36:48,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2020-09-24 19:36:48,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1515. [2020-09-24 19:36:48,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1515 states. [2020-09-24 19:36:48,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 1830 transitions. [2020-09-24 19:36:48,243 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 1830 transitions. Word has length 313 [2020-09-24 19:36:48,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:36:48,244 INFO L479 AbstractCegarLoop]: Abstraction has 1515 states and 1830 transitions. [2020-09-24 19:36:48,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 19:36:48,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 1830 transitions. [2020-09-24 19:36:48,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-09-24 19:36:48,248 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:36:48,248 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:36:48,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:36:48,248 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:36:48,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:36:48,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1821573825, now seen corresponding path program 1 times [2020-09-24 19:36:48,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:36:48,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [528470159] [2020-09-24 19:36:48,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:36:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:48,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:48,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:48,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:49,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:49,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:49,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 371 [2020-09-24 19:36:49,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:36:49,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1021 [2020-09-24 19:36:49,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:49,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:36:49,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-24 19:36:49,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-24 19:36:49,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:49,540 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 19:36:49,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:36:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:49,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:49,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:49,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 19:36:49,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:49,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 19:36:49,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:49,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:49,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:49,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:49,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:49,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 19:36:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:49,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:49,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:49,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:36:49,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:49,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:36:49,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:49,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:49,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:49,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:49,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:49,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-24 19:36:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:49,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:49,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:49,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:36:49,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:49,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:36:49,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:49,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:49,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:49,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:49,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:49,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:36:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:49,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:49,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:49,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 19:36:49,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:49,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 19:36:49,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:49,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:36:49,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:49,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 19:36:49,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:49,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 19:36:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:49,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:49,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:49,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:49,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:49,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:36:49,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:49,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:49,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:49,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:49,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:49,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 19:36:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:49,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:49,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:49,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 19:36:49,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:49,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 19:36:49,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:49,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:36:49,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:49,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:36:49,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:49,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 19:36:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:49,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:49,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:49,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:49,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:49,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:36:49,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:49,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:49,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:49,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:49,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:49,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 19:36:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:49,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:49,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:50,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:50,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 19:36:50,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:36:50,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-24 19:36:50,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:50,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:36:50,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:36:50,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 19:36:50,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:50,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 19:36:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:50,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:50,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:50,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:50,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:50,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:36:50,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:50,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:36:50,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:50,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:36:50,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:50,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-09-24 19:36:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:50,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:50,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:50,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 19:36:50,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:50,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 19:36:50,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:50,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:50,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-24 19:36:50,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:50,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:36:50,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 19:36:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:50,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:50,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:50,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:36:50,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:50,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:36:50,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:50,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:50,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:50,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:50,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:50,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 19:36:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:50,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:50,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:50,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:50,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:50,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:36:50,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:50,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:50,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:36:50,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:50,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:50,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2020-09-24 19:36:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:50,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:50,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:50,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:36:50,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:50,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:36:50,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:50,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:50,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:36:50,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:50,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:50,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2020-09-24 19:36:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:50,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:50,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:36:50,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:36:50,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:36:50,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:36:50,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:36:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:36:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 19:36:50,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:36:50,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:36:50,618 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 19:36:50,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [528470159] [2020-09-24 19:36:50,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:36:50,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-24 19:36:50,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335209159] [2020-09-24 19:36:50,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 19:36:50,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:36:50,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 19:36:50,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:36:50,622 INFO L87 Difference]: Start difference. First operand 1515 states and 1830 transitions. Second operand 15 states. [2020-09-24 19:36:50,767 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-24 19:36:51,816 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-09-24 19:36:55,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:36:55,538 INFO L93 Difference]: Finished difference Result 2933 states and 3561 transitions. [2020-09-24 19:36:55,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 19:36:55,539 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 332 [2020-09-24 19:36:55,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:36:55,548 INFO L225 Difference]: With dead ends: 2933 [2020-09-24 19:36:55,548 INFO L226 Difference]: Without dead ends: 1547 [2020-09-24 19:36:55,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=366, Invalid=966, Unknown=0, NotChecked=0, Total=1332 [2020-09-24 19:36:55,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2020-09-24 19:36:55,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1545. [2020-09-24 19:36:55,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1545 states. [2020-09-24 19:36:55,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 1855 transitions. [2020-09-24 19:36:55,651 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 1855 transitions. Word has length 332 [2020-09-24 19:36:55,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:36:55,651 INFO L479 AbstractCegarLoop]: Abstraction has 1545 states and 1855 transitions. [2020-09-24 19:36:55,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 19:36:55,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 1855 transitions. [2020-09-24 19:36:55,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-09-24 19:36:55,656 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:36:55,656 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:36:55,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:36:55,657 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:36:55,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:36:55,657 INFO L82 PathProgramCache]: Analyzing trace with hash 134025825, now seen corresponding path program 1 times [2020-09-24 19:36:55,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:36:55,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1224817238] [2020-09-24 19:36:55,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:36:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:36:55,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:36:55,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking...