/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --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 [2020-09-25 14:49:22,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:49:22,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:49:22,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:49:22,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:49:22,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:49:22,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:49:22,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:49:22,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:49:22,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:49:22,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:49:22,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:49:22,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:49:22,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:49:22,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:49:22,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:49:22,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:49:22,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:49:22,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:49:22,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:49:22,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:49:22,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:49:22,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:49:22,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:49:22,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:49:22,618 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:49:22,618 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:49:22,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:49:22,619 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:49:22,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:49:22,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:49:22,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:49:22,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:49:22,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:49:22,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:49:22,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:49:22,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:49:22,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:49:22,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:49:22,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:49:22,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:49:22,628 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:49:22,654 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:49:22,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:49:22,656 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:49:22,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:49:22,656 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:49:22,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:49:22,657 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:49:22,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:49:22,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:49:22,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:49:22,658 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:49:22,658 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:49:22,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:49:22,658 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:49:22,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:49:22,659 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:49:22,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:49:22,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:49:22,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:49:22,660 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:49:22,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:49:22,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:49:22,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:49:22,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:49:22,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:49:22,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:49:22,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:49:22,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:49:22,662 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:49:22,662 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:49:23,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:49:23,133 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:49:23,142 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:49:23,144 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:49:23,145 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:49:23,146 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2020-09-25 14:49:23,242 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd1274c63/1acae54b14234de3b9ed277629dfe62b/FLAGd263aae73 [2020-09-25 14:49:23,862 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:49:23,863 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2020-09-25 14:49:23,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd1274c63/1acae54b14234de3b9ed277629dfe62b/FLAGd263aae73 [2020-09-25 14:49:24,156 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd1274c63/1acae54b14234de3b9ed277629dfe62b [2020-09-25 14:49:24,171 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:49:24,176 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:49:24,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:49:24,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:49:24,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:49:24,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:49:24" (1/1) ... [2020-09-25 14:49:24,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db1276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:24, skipping insertion in model container [2020-09-25 14:49:24,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:49:24" (1/1) ... [2020-09-25 14:49:24,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:49:24,247 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:49:24,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:49:24,630 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:49:24,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:49:24,826 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:49:24,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:24 WrapperNode [2020-09-25 14:49:24,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:49:24,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:49:24,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:49:24,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:49:24,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:24" (1/1) ... [2020-09-25 14:49:24,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:24" (1/1) ... [2020-09-25 14:49:24,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:24" (1/1) ... [2020-09-25 14:49:24,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:24" (1/1) ... [2020-09-25 14:49:24,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:24" (1/1) ... [2020-09-25 14:49:24,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:24" (1/1) ... [2020-09-25 14:49:24,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:24" (1/1) ... [2020-09-25 14:49:24,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:49:24,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:49:24,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:49:24,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:49:24,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:24" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:49:24,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:49:24,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:49:24,995 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 14:49:24,995 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2020-09-25 14:49:24,996 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2020-09-25 14:49:24,996 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2020-09-25 14:49:24,996 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2020-09-25 14:49:24,996 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2020-09-25 14:49:24,997 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2020-09-25 14:49:24,997 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2020-09-25 14:49:24,997 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2020-09-25 14:49:24,997 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-09-25 14:49:24,997 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2020-09-25 14:49:24,998 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2020-09-25 14:49:24,998 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2020-09-25 14:49:24,998 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2020-09-25 14:49:24,998 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2020-09-25 14:49:24,999 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-09-25 14:49:24,999 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:49:24,999 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-09-25 14:49:24,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:49:25,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 14:49:25,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 14:49:25,000 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-09-25 14:49:25,000 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-09-25 14:49:25,000 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-09-25 14:49:25,000 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 14:49:25,001 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 14:49:25,001 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2020-09-25 14:49:25,001 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2020-09-25 14:49:25,001 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2020-09-25 14:49:25,001 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2020-09-25 14:49:25,001 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2020-09-25 14:49:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2020-09-25 14:49:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2020-09-25 14:49:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2020-09-25 14:49:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-09-25 14:49:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2020-09-25 14:49:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2020-09-25 14:49:25,003 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2020-09-25 14:49:25,003 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2020-09-25 14:49:25,003 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2020-09-25 14:49:25,003 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-09-25 14:49:25,003 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:49:25,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:49:25,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:49:26,158 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:49:26,159 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 14:49:26,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:49:26 BoogieIcfgContainer [2020-09-25 14:49:26,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:49:26,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:49:26,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:49:26,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:49:26,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:49:24" (1/3) ... [2020-09-25 14:49:26,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b580ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:49:26, skipping insertion in model container [2020-09-25 14:49:26,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:24" (2/3) ... [2020-09-25 14:49:26,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b580ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:49:26, skipping insertion in model container [2020-09-25 14:49:26,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:49:26" (3/3) ... [2020-09-25 14:49:26,193 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2020-09-25 14:49:26,205 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:49:26,222 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:49:26,246 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:49:26,284 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:49:26,284 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:49:26,284 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:49:26,284 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:49:26,285 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:49:26,285 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:49:26,285 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:49:26,285 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:49:26,321 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states. [2020-09-25 14:49:26,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-09-25 14:49:26,344 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:49:26,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:49:26,347 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:49:26,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:49:26,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1455574608, now seen corresponding path program 1 times [2020-09-25 14:49:26,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:49:26,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2130277637] [2020-09-25 14:49:26,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:49:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:26,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:27,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:27,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:27,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:27,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:27,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:28,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:30,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:30,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-25 14:49:30,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 14:49:30,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3944 [2020-09-25 14:49:30,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:30,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:30,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:49:30,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-09-25 14:49:30,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:49:30,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:49:30,958 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-25 14:49:30,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:49:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:30,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:31,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:31,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 14:49:31,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:31,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 14:49:31,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:31,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:31,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:49:31,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:31,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:49:31,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:31,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-25 14:49:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:31,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:31,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:31,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:49:31,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:31,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 14:49:31,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:31,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:31,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:49:31,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:31,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:49:31,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:31,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:49:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:31,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:31,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:31,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:49:31,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:31,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 14:49:31,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:31,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:31,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:49:31,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:49:31,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:49:31,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:31,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 14:49:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:31,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:31,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:31,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:49:31,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:31,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 14:49:31,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:31,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:31,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:49:31,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 14:49:31,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:49:31,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:31,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 14:49:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:31,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:31,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:31,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:49:31,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:31,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:49:31,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:31,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:31,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:49:31,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:31,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:49:31,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:31,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 14:49:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:31,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:31,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:31,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:31,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:31,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:31,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 14:49:31,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:49:31,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 14:49:31,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:31,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:31,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:49:31,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-25 14:49:31,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:49:31,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:31,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 14:49:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:31,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:31,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:31,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:49:31,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:31,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:49:31,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:31,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:31,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:49:31,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:31,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:49:31,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:31,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 14:49:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:31,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:31,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:31,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:31,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:31,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 14:49:31,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:49:31,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 14:49:31,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:31,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:31,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:49:31,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 14:49:31,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:49:31,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:31,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 14:49:31,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:31,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:31,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:31,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:49:31,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:31,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:49:31,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:31,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:31,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:49:31,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:31,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:49:31,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:31,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:49:31,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2130277637] [2020-09-25 14:49:31,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:49:31,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 14:49:31,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069597660] [2020-09-25 14:49:31,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 14:49:31,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:49:31,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 14:49:31,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-09-25 14:49:31,771 INFO L87 Difference]: Start difference. First operand 577 states. Second operand 14 states. [2020-09-25 14:49:32,455 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-25 14:49:32,812 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-09-25 14:49:33,018 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-09-25 14:49:37,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:49:37,200 INFO L93 Difference]: Finished difference Result 1058 states and 1321 transitions. [2020-09-25 14:49:37,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 14:49:37,202 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 228 [2020-09-25 14:49:37,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:49:37,240 INFO L225 Difference]: With dead ends: 1058 [2020-09-25 14:49:37,241 INFO L226 Difference]: Without dead ends: 581 [2020-09-25 14:49:37,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2020-09-25 14:49:37,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2020-09-25 14:49:37,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 553. [2020-09-25 14:49:37,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2020-09-25 14:49:37,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 646 transitions. [2020-09-25 14:49:37,387 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 646 transitions. Word has length 228 [2020-09-25 14:49:37,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:49:37,388 INFO L479 AbstractCegarLoop]: Abstraction has 553 states and 646 transitions. [2020-09-25 14:49:37,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 14:49:37,388 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 646 transitions. [2020-09-25 14:49:37,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-25 14:49:37,395 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:49:37,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:49:37,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:49:37,396 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:49:37,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:49:37,397 INFO L82 PathProgramCache]: Analyzing trace with hash 503549649, now seen corresponding path program 1 times [2020-09-25 14:49:37,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:49:37,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270575304] [2020-09-25 14:49:37,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:49:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:37,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:38,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:38,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-09-25 14:49:38,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:38,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 595 [2020-09-25 14:49:38,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:38,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:38,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:49:38,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-09-25 14:49:38,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:49:38,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:38,287 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-25 14:49:38,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:49:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:38,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:38,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:38,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 14:49:38,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:38,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 14:49:38,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:38,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:38,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:49:38,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:38,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:49:38,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:38,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-25 14:49:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:38,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:38,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:38,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:49:38,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:38,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:49:38,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:38,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:38,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:49:38,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:38,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:49:38,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:38,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-25 14:49:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:38,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:38,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:38,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:49:38,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:38,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:49:38,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:38,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:38,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:49:38,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:38,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:49:38,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:38,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 14:49:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:38,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:38,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:38,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:49:38,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:38,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 14:49:38,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:38,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:38,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:49:38,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:38,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:49:38,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:38,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 14:49:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:38,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:38,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:38,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:49:38,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:38,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:49:38,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:38,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:38,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:49:38,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:38,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:49:38,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:38,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 14:49:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:38,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:38,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:38,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 14:49:38,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:38,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 14:49:38,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:38,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:38,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:49:38,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:38,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:49:38,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:38,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 14:49:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:38,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:38,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:38,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:49:38,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:38,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:49:38,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:38,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:49:38,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:38,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:49:38,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:38,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-25 14:49:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:38,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:38,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:38,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 14:49:38,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:38,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 14:49:38,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:38,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:38,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:49:38,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:38,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:49:38,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:38,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 14:49:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:38,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:38,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:38,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:49:38,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:38,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:49:38,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:38,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:38,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:49:38,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:38,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:49:38,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:38,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:49:38,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270575304] [2020-09-25 14:49:38,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:49:38,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 14:49:38,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803307139] [2020-09-25 14:49:38,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 14:49:38,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:49:38,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 14:49:38,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:49:38,736 INFO L87 Difference]: Start difference. First operand 553 states and 646 transitions. Second operand 11 states. [2020-09-25 14:49:40,443 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-25 14:49:40,615 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-25 14:49:42,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:49:42,218 INFO L93 Difference]: Finished difference Result 982 states and 1173 transitions. [2020-09-25 14:49:42,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 14:49:42,218 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 239 [2020-09-25 14:49:42,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:49:42,224 INFO L225 Difference]: With dead ends: 982 [2020-09-25 14:49:42,225 INFO L226 Difference]: Without dead ends: 558 [2020-09-25 14:49:42,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2020-09-25 14:49:42,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2020-09-25 14:49:42,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2020-09-25 14:49:42,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-09-25 14:49:42,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 650 transitions. [2020-09-25 14:49:42,268 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 650 transitions. Word has length 239 [2020-09-25 14:49:42,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:49:42,269 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 650 transitions. [2020-09-25 14:49:42,269 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 14:49:42,269 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 650 transitions. [2020-09-25 14:49:42,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-09-25 14:49:42,275 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:49:42,275 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:49:42,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:49:42,276 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:49:42,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:49:42,276 INFO L82 PathProgramCache]: Analyzing trace with hash -734642201, now seen corresponding path program 1 times [2020-09-25 14:49:42,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:49:42,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2114428668] [2020-09-25 14:49:42,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:49:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:42,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:43,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:43,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:46,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:46,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 349 [2020-09-25 14:49:46,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:49:46,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4377 [2020-09-25 14:49:46,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:46,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:46,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:49:46,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 14:49:46,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-09-25 14:49:46,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:47,003 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-25 14:49:47,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:49:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:47,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:47,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:47,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 14:49:47,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:47,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 14:49:47,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:47,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:47,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:49:47,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:47,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 14:49:47,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:47,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-25 14:49:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:47,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:47,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:47,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:49:47,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:47,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 14:49:47,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:47,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:47,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:49:47,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:47,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 14:49:47,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:47,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-25 14:49:47,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:47,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:47,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:47,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:49:47,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:47,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:49:47,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:47,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:47,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:49:47,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:47,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:49:47,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:47,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 14:49:47,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:47,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:47,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:47,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:49:47,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:47,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 14:49:47,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:47,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:47,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:49:47,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:47,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:49:47,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:49:47,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 14:49:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:47,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:47,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:47,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:49:47,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:47,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:49:47,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:47,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:47,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:49:47,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:47,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:49:47,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:49:47,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 14:49:47,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:47,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:47,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:47,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 14:49:47,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:47,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 14:49:47,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:47,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:47,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:49:47,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:47,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 14:49:47,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:47,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 14:49:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:47,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:47,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:47,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:49:47,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:47,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:49:47,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:47,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:47,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:49:47,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:47,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:49:47,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:47,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-25 14:49:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:47,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:47,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:47,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 14:49:47,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:47,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 14:49:47,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:47,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:47,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:49:47,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:47,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 14:49:47,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:49:47,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 14:49:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:47,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:47,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:47,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:49:47,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:47,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:49:47,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:47,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:47,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:49:47,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:47,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:49:47,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:47,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-25 14:49:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:47,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:47,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:47,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 14:49:47,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:47,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 14:49:47,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:47,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:47,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:49:47,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:49:47,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 14:49:47,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:47,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:49:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:47,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:47,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:47,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:49:47,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:47,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:49:47,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:47,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:47,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:49:47,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:47,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:49:47,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:47,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 14:49:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:47,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:47,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:47,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:49:47,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:47,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 14:49:47,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:47,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:47,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:49:47,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:49:47,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:49:47,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:49:48,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2020-09-25 14:49:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:48,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:48,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:49:48,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:49:48,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:49:48,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:49:48,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:49:48,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:49:48,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:49:48,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:49:48,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:49:48,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:49:48,142 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 14:49:48,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2114428668] [2020-09-25 14:49:48,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:49:48,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-09-25 14:49:48,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998524631] [2020-09-25 14:49:48,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 14:49:48,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:49:48,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 14:49:48,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2020-09-25 14:49:48,146 INFO L87 Difference]: Start difference. First operand 558 states and 650 transitions. Second operand 17 states. [2020-09-25 14:49:49,005 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-25 14:49:51,307 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-09-25 14:49:51,437 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 14:49:51,591 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-25 14:49:52,359 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-25 14:49:54,603 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-25 14:49:55,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:49:55,179 INFO L93 Difference]: Finished difference Result 1187 states and 1396 transitions. [2020-09-25 14:49:55,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-25 14:49:55,180 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 312 [2020-09-25 14:49:55,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:49:55,189 INFO L225 Difference]: With dead ends: 1187 [2020-09-25 14:49:55,189 INFO L226 Difference]: Without dead ends: 758 [2020-09-25 14:49:55,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=596, Invalid=1756, Unknown=0, NotChecked=0, Total=2352 [2020-09-25 14:49:55,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2020-09-25 14:49:55,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 750. [2020-09-25 14:49:55,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2020-09-25 14:49:55,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 867 transitions. [2020-09-25 14:49:55,278 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 867 transitions. Word has length 312 [2020-09-25 14:49:55,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:49:55,280 INFO L479 AbstractCegarLoop]: Abstraction has 750 states and 867 transitions. [2020-09-25 14:49:55,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 14:49:55,280 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 867 transitions. [2020-09-25 14:49:55,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-09-25 14:49:55,286 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:49:55,287 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] [2020-09-25 14:49:55,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:49:55,287 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:49:55,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:49:55,288 INFO L82 PathProgramCache]: Analyzing trace with hash 679708041, now seen corresponding path program 1 times [2020-09-25 14:49:55,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:49:55,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119220529] [2020-09-25 14:49:55,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:49:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:49:55,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:55,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:56,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:49:56,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:50:00,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:50:00,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 350 [2020-09-25 14:50:00,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:50:00,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 14:50:00,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:50:00,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:50:00,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:50:00,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 14:50:00,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-09-25 14:50:00,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:50:00,679 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-25 14:50:00,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:50:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:50:00,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:50:00,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:50:00,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 14:50:00,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:50:00,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 14:50:00,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:50:00,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:50:00,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:50:00,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:50:00,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 14:50:00,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:50:00,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-25 14:50:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:50:00,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:50:00,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:50:00,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:50:00,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:50:00,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 14:50:00,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:50:00,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:50:00,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:50:00,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:50:00,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 14:50:00,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:50:00,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-25 14:50:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:50:00,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:50:00,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:50:00,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:50:00,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:50:00,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:50:00,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:50:00,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:50:00,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:50:00,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:50:00,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:50:00,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:50:00,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 14:50:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:50:00,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:50:00,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:50:00,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:50:00,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:50:00,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 14:50:00,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:50:00,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:50:00,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:50:00,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:50:00,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:50:00,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:50:00,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 14:50:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:50:00,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:50:00,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:50:00,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:50:00,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:50:00,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:50:00,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:50:00,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:50:00,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:50:00,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:50:00,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:50:00,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:50:01,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 14:50:01,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:50:01,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:50:01,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:50:01,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 14:50:01,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:50:01,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 14:50:01,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:50:01,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:50:01,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:50:01,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:50:01,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 14:50:01,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:50:01,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 14:50:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:50:01,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:50:01,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:50:01,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:50:01,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:50:01,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:50:01,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:50:01,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:50:01,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:50:01,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:50:01,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:50:01,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:50:01,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-25 14:50:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:50:01,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:50:01,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:50:01,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 14:50:01,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:50:01,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 14:50:01,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:50:01,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:50:01,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:50:01,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:50:01,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 14:50:01,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:50:01,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 14:50:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:50:01,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:50:01,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:50:01,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:50:01,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:50:01,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:50:01,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:50:01,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:50:01,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:50:01,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:50:01,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:50:01,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:50:01,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-25 14:50:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:50:01,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:50:01,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:50:01,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-25 14:50:01,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:50:01,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 14:50:01,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:50:01,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:50:01,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:50:01,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:50:01,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 14:50:01,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:50:01,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:50:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:50:01,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:50:01,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:50:01,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:50:01,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:50:01,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 14:50:01,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:50:01,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:50:01,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:50:01,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:50:01,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:50:01,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:50:01,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-25 14:50:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:50:01,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:50:01,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:50:01,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:50:01,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:50:01,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 14:50:01,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:50:01,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:50:01,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:50:01,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:50:01,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:50:01,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:50:01,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-09-25 14:50:01,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:50:01,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:50:01,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:50:01,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:50:01,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:50:01,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:50:01,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:50:01,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:50:01,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:50:01,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:50:01,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:50:01,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:50:02,008 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 14:50:02,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119220529] [2020-09-25 14:50:02,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:50:02,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-09-25 14:50:02,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614268789] [2020-09-25 14:50:02,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 14:50:02,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:50:02,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 14:50:02,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2020-09-25 14:50:02,016 INFO L87 Difference]: Start difference. First operand 750 states and 867 transitions. Second operand 16 states. [2020-09-25 14:50:02,146 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 14:50:02,706 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-25 14:50:03,458 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-25 14:50:05,114 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-09-25 14:50:05,252 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-25 14:50:07,883 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-09-25 14:50:08,026 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 14:50:08,150 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-25 14:50:09,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:50:09,057 INFO L93 Difference]: Finished difference Result 1211 states and 1428 transitions. [2020-09-25 14:50:09,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-09-25 14:50:09,057 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 313 [2020-09-25 14:50:09,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:50:09,061 INFO L225 Difference]: With dead ends: 1211 [2020-09-25 14:50:09,062 INFO L226 Difference]: Without dead ends: 775 [2020-09-25 14:50:09,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=692, Invalid=1960, Unknown=0, NotChecked=0, Total=2652 [2020-09-25 14:50:09,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2020-09-25 14:50:09,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 769. [2020-09-25 14:50:09,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2020-09-25 14:50:09,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 888 transitions. [2020-09-25 14:50:09,112 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 888 transitions. Word has length 313 [2020-09-25 14:50:09,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:50:09,112 INFO L479 AbstractCegarLoop]: Abstraction has 769 states and 888 transitions. [2020-09-25 14:50:09,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 14:50:09,113 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 888 transitions. [2020-09-25 14:50:09,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-09-25 14:50:09,118 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:50:09,118 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:50:09,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:50:09,118 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:50:09,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:50:09,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1399853749, now seen corresponding path program 1 times [2020-09-25 14:50:09,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:50:09,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137158404] [2020-09-25 14:50:09,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:50:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:50:09,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:50:09,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:50:10,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking...