/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 SequenceOfStatements --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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:15:53,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:15:53,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:15:53,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:15:53,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:15:53,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:15:53,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:15:53,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:15:53,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:15:53,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:15:53,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:15:53,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:15:53,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:15:53,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:15:53,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:15:53,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:15:53,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:15:53,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:15:53,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:15:53,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:15:53,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:15:53,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:15:53,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:15:53,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:15:53,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:15:53,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:15:53,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:15:53,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:15:53,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:15:53,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:15:53,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:15:53,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:15:53,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:15:53,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:15:53,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:15:53,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:15:53,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:15:53,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:15:53,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:15:53,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:15:53,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:15:53,716 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 [2020-10-13 13:15:53,739 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:15:53,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:15:53,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:15:53,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:15:53,741 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:15:53,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:15:53,742 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:15:53,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:15:53,742 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:15:53,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:15:53,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:15:53,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:15:53,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:15:53,743 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:15:53,743 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:15:53,744 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:15:53,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:15:53,744 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:15:53,744 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:15:53,744 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:15:53,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:15:53,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:15:53,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:15:53,745 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:15:53,745 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:15:53,746 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:15:53,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:15:53,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:15:53,746 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:15:53,746 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 -> SequenceOfStatements 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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 13:15:54,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:15:54,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:15:54,081 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:15:54,083 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:15:54,083 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:15:54,084 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c [2020-10-13 13:15:54,147 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aabd38275/8a53a768ba0a4c609e3a0b59648b2e4f/FLAG4215c65f9 [2020-10-13 13:15:54,656 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:15:54,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c [2020-10-13 13:15:54,671 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aabd38275/8a53a768ba0a4c609e3a0b59648b2e4f/FLAG4215c65f9 [2020-10-13 13:15:54,936 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aabd38275/8a53a768ba0a4c609e3a0b59648b2e4f [2020-10-13 13:15:54,945 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:15:54,947 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:15:54,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:15:54,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:15:54,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:15:54,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:15:54" (1/1) ... [2020-10-13 13:15:54,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18839cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:54, skipping insertion in model container [2020-10-13 13:15:54,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:15:54" (1/1) ... [2020-10-13 13:15:54,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:15:55,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:15:55,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:15:55,500 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:15:55,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:15:55,618 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:15:55,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:55 WrapperNode [2020-10-13 13:15:55,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:15:55,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:15:55,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:15:55,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:15:55,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:55" (1/1) ... [2020-10-13 13:15:55,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:55" (1/1) ... [2020-10-13 13:15:55,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:55" (1/1) ... [2020-10-13 13:15:55,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:55" (1/1) ... [2020-10-13 13:15:55,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:55" (1/1) ... [2020-10-13 13:15:55,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:55" (1/1) ... [2020-10-13 13:15:55,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:55" (1/1) ... [2020-10-13 13:15:55,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:15:55,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:15:55,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:15:55,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:15:55,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:55" (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 [2020-10-13 13:15:55,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:15:55,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:15:55,805 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 13:15:55,805 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-13 13:15:55,805 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-13 13:15:55,807 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-13 13:15:55,807 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-13 13:15:55,808 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 13:15:55,809 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-13 13:15:55,809 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:15:55,809 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-13 13:15:55,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:15:55,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 13:15:55,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 13:15:55,810 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 13:15:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 13:15:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 13:15:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 13:15:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 13:15:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 13:15:55,811 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 13:15:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 13:15:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 13:15:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 13:15:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 13:15:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:15:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:15:55,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:15:57,159 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:15:57,159 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 13:15:57,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:15:57 BoogieIcfgContainer [2020-10-13 13:15:57,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:15:57,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:15:57,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:15:57,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:15:57,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:15:54" (1/3) ... [2020-10-13 13:15:57,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0c29d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:15:57, skipping insertion in model container [2020-10-13 13:15:57,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:55" (2/3) ... [2020-10-13 13:15:57,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0c29d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:15:57, skipping insertion in model container [2020-10-13 13:15:57,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:15:57" (3/3) ... [2020-10-13 13:15:57,174 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.1.ufo.BOUNDED-8.pals.c [2020-10-13 13:15:57,185 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:15:57,193 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:15:57,207 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:15:57,234 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:15:57,235 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:15:57,235 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:15:57,235 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:15:57,235 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:15:57,236 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:15:57,236 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:15:57,236 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:15:57,261 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-10-13 13:15:57,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-13 13:15:57,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:15:57,279 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] [2020-10-13 13:15:57,280 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:15:57,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:15:57,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1945326856, now seen corresponding path program 1 times [2020-10-13 13:15:57,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:15:57,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [446152364] [2020-10-13 13:15:57,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:15:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:57,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:58,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:58,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-13 13:15:58,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:58,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 746 [2020-10-13 13:15:58,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:58,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:15:58,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 13:15:58,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:15:58,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:15:58,942 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:15:58,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:15:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:58,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:58,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:58,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:15:58,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:58,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:15:58,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:58,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:15:58,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:15:58,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:15:58,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:58,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:15:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:58,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:59,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:59,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 13:15:59,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:59,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-13 13:15:59,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:59,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:15:59,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:15:59,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:15:59,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:59,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-13 13:15:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:59,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:59,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:59,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:15:59,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:59,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:15:59,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:59,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:15:59,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:15:59,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:15:59,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:59,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 13:15:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:59,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:59,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:59,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:15:59,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:59,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:15:59,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:59,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:15:59,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:15:59,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:15:59,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:15:59,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 13:15:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:59,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:59,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:59,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:15:59,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:59,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:15:59,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:59,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:15:59,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:15:59,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:15:59,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:59,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:15:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:59,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:59,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:59,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:15:59,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:59,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:15:59,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:59,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:15:59,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:15:59,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:15:59,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-13 13:15:59,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 13:15:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:59,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:59,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:59,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:15:59,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:59,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:15:59,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:59,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:15:59,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:15:59,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:15:59,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:59,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-13 13:15:59,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:15:59,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:15:59,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:15:59,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:15:59,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:15:59,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:15:59,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:15:59,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:15:59,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:15:59,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:15:59,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:15:59,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:15:59,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [446152364] [2020-10-13 13:15:59,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:15:59,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 13:15:59,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292568359] [2020-10-13 13:15:59,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 13:15:59,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:15:59,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 13:15:59,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 13:15:59,484 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 7 states. [2020-10-13 13:16:01,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:16:01,788 INFO L93 Difference]: Finished difference Result 483 states and 809 transitions. [2020-10-13 13:16:01,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 13:16:01,789 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 104 [2020-10-13 13:16:01,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:16:01,807 INFO L225 Difference]: With dead ends: 483 [2020-10-13 13:16:01,808 INFO L226 Difference]: Without dead ends: 345 [2020-10-13 13:16:01,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:16:01,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-10-13 13:16:01,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 317. [2020-10-13 13:16:01,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-10-13 13:16:01,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 544 transitions. [2020-10-13 13:16:01,909 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 544 transitions. Word has length 104 [2020-10-13 13:16:01,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:16:01,910 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 544 transitions. [2020-10-13 13:16:01,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 13:16:01,910 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 544 transitions. [2020-10-13 13:16:01,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-13 13:16:01,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:16:01,915 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] [2020-10-13 13:16:01,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:16:01,916 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:16:01,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:16:01,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1521680134, now seen corresponding path program 1 times [2020-10-13 13:16:01,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:16:01,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1229700567] [2020-10-13 13:16:01,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:16:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:02,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:03,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:03,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-13 13:16:03,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:03,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1323 [2020-10-13 13:16:03,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:03,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:16:03,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-13 13:16:03,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:16:03,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:16:03,766 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:16:03,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:16:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:03,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:03,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:03,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:16:03,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:03,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 13:16:03,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:03,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:03,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:03,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:03,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:03,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:16:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:03,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:04,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:04,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 13:16:04,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:04,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-13 13:16:04,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:04,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:16:04,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:04,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 13:16:04,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:16:04,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-13 13:16:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:04,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:04,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:04,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:16:04,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:04,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:16:04,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:04,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:16:04,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:16:04,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:16:04,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:04,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 13:16:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:04,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:04,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:04,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:04,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:04,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:16:04,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:04,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:04,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:16:04,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:04,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:04,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 13:16:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:04,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:04,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:04,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:04,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:04,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:16:04,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:04,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:04,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:16:04,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:04,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:04,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:16:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:04,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:04,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:04,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:04,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:04,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:16:04,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:04,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:04,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:16:04,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:04,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:04,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 13:16:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:04,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:04,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:04,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:04,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:04,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:16:04,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:04,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:04,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:16:04,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:04,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:16:04,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-13 13:16:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:04,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:04,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:04,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:04,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:04,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:16:04,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:04,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:04,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:16:04,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:04,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:04,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:16:04,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1229700567] [2020-10-13 13:16:04,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:16:04,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:16:04,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531512565] [2020-10-13 13:16:04,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:16:04,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:16:04,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:16:04,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:16:04,459 INFO L87 Difference]: Start difference. First operand 317 states and 544 transitions. Second operand 13 states. [2020-10-13 13:16:06,800 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-13 13:16:07,194 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-10-13 13:16:07,664 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:16:08,021 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-13 13:16:10,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:16:10,689 INFO L93 Difference]: Finished difference Result 486 states and 813 transitions. [2020-10-13 13:16:10,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 13:16:10,689 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 104 [2020-10-13 13:16:10,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:16:10,695 INFO L225 Difference]: With dead ends: 486 [2020-10-13 13:16:10,696 INFO L226 Difference]: Without dead ends: 355 [2020-10-13 13:16:10,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:16:10,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2020-10-13 13:16:10,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 317. [2020-10-13 13:16:10,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-10-13 13:16:10,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 514 transitions. [2020-10-13 13:16:10,744 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 514 transitions. Word has length 104 [2020-10-13 13:16:10,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:16:10,744 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 514 transitions. [2020-10-13 13:16:10,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:16:10,745 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 514 transitions. [2020-10-13 13:16:10,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-13 13:16:10,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:16:10,748 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] [2020-10-13 13:16:10,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:16:10,749 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:16:10,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:16:10,749 INFO L82 PathProgramCache]: Analyzing trace with hash -662386256, now seen corresponding path program 1 times [2020-10-13 13:16:10,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:16:10,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [686569338] [2020-10-13 13:16:10,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:16:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:10,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:10,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:11,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:11,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:15,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:15,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-13 13:16:15,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:16:15,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 13:16:15,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:15,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:16:15,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-13 13:16:15,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 13:16:15,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:16:16,181 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:16:16,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:16:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:16,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:16,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:16,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:16:16,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:16,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:16:16,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:16,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:16,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:16,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:16,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:16,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:16:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:16,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:16,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:16,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 13:16:16,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:16,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-13 13:16:16,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:16,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:16:16,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:16,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:16:16,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:16,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:16:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:16,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:16,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:16,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:16:16,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:16,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:16:16,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:16,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:16:16,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:16,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:16:16,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:16:16,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:16:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:16,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:16,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:16,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:16,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:16,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 13:16:16,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:16,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:16:16,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:16:16,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:16:16,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:16:16,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-13 13:16:16,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:16,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:16,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:16,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:16,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:16,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:16:16,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:16,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:16,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:16:16,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:16,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:16:16,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:16:16,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:16,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:16,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:16,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:16,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:16,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:16:16,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:16,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:16,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:16:16,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:16,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:16:16,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:16:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:16,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:16,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:16,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:16,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:16,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:16:16,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:16,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:16,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:16:16,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:16,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:16,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 13:16:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:16,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:16,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:16,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:16,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:16,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:16:16,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:16,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:16,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:16:16,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:16,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:16:16,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:16:16,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [686569338] [2020-10-13 13:16:16,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:16:16,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:16:16,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554495187] [2020-10-13 13:16:16,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:16:16,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:16:16,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:16:16,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:16:16,773 INFO L87 Difference]: Start difference. First operand 317 states and 514 transitions. Second operand 10 states. [2020-10-13 13:16:17,110 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:16:21,307 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:16:21,730 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:16:21,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:16:21,946 INFO L93 Difference]: Finished difference Result 623 states and 1003 transitions. [2020-10-13 13:16:21,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:16:21,947 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 133 [2020-10-13 13:16:21,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:16:21,952 INFO L225 Difference]: With dead ends: 623 [2020-10-13 13:16:21,953 INFO L226 Difference]: Without dead ends: 498 [2020-10-13 13:16:21,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:16:21,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-10-13 13:16:22,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 434. [2020-10-13 13:16:22,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2020-10-13 13:16:22,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 695 transitions. [2020-10-13 13:16:22,006 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 695 transitions. Word has length 133 [2020-10-13 13:16:22,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:16:22,007 INFO L479 AbstractCegarLoop]: Abstraction has 434 states and 695 transitions. [2020-10-13 13:16:22,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:16:22,007 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 695 transitions. [2020-10-13 13:16:22,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-13 13:16:22,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:16:22,011 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] [2020-10-13 13:16:22,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:16:22,011 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:16:22,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:16:22,012 INFO L82 PathProgramCache]: Analyzing trace with hash -952193695, now seen corresponding path program 1 times [2020-10-13 13:16:22,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:16:22,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697501817] [2020-10-13 13:16:22,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:16:22,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:22,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:22,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:22,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:22,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:22,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:25,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:27,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:27,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-13 13:16:27,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:16:27,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-13 13:16:27,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:27,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:16:27,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-13 13:16:27,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 13:16:27,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:27,421 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:16:27,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:16:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:27,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:27,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:27,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:16:27,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:27,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:16:27,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:27,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:27,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:27,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:27,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:27,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:16:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:27,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:27,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:27,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 13:16:27,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:27,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-13 13:16:27,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:27,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:16:27,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:27,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 13:16:27,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:27,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:16:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:27,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:27,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:27,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:16:27,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:27,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:16:27,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:16:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:27,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:16:27,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 13:16:27,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:16:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:27,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:27,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:27,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:16:27,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:27,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:16:27,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:27,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:16:27,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:27,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:16:27,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:27,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:16:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:27,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:27,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:27,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:27,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:27,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:16:27,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:27,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:16:27,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:16:27,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:16:27,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:27,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 13:16:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:27,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:27,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:27,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:27,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:27,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:16:27,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:27,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:27,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:16:27,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:27,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:27,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:16:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:27,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:27,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:27,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:27,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:27,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:16:27,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:27,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:27,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:16:27,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:27,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:27,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-13 13:16:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:27,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:27,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:27,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:27,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:27,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:16:27,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:27,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:27,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:16:27,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:27,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:27,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:16:27,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697501817] [2020-10-13 13:16:27,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:16:27,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:16:27,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498632267] [2020-10-13 13:16:27,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:16:27,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:16:27,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:16:27,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:16:27,871 INFO L87 Difference]: Start difference. First operand 434 states and 695 transitions. Second operand 10 states. [2020-10-13 13:16:28,244 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:16:31,471 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-13 13:16:33,085 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:16:33,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:16:33,390 INFO L93 Difference]: Finished difference Result 1022 states and 1617 transitions. [2020-10-13 13:16:33,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:16:33,392 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 136 [2020-10-13 13:16:33,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:16:33,397 INFO L225 Difference]: With dead ends: 1022 [2020-10-13 13:16:33,397 INFO L226 Difference]: Without dead ends: 780 [2020-10-13 13:16:33,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:16:33,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2020-10-13 13:16:33,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 660. [2020-10-13 13:16:33,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 660 states. [2020-10-13 13:16:33,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 1047 transitions. [2020-10-13 13:16:33,467 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 1047 transitions. Word has length 136 [2020-10-13 13:16:33,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:16:33,468 INFO L479 AbstractCegarLoop]: Abstraction has 660 states and 1047 transitions. [2020-10-13 13:16:33,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:16:33,468 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 1047 transitions. [2020-10-13 13:16:33,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-13 13:16:33,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:16:33,471 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] [2020-10-13 13:16:33,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:16:33,471 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:16:33,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:16:33,472 INFO L82 PathProgramCache]: Analyzing trace with hash 376346342, now seen corresponding path program 1 times [2020-10-13 13:16:33,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:16:33,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [768527009] [2020-10-13 13:16:33,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:16:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:33,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:33,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:33,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:33,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:33,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:34,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:34,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:34,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:35,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:38,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:38,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-13 13:16:38,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:16:38,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-13 13:16:38,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:16:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-10-13 13:16:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:16:38,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:38,952 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:16:38,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:16:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:38,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:38,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:38,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:16:38,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:38,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:16:38,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:38,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:38,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:38,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:38,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:16:38,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:16:39,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:39,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:39,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:39,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 13:16:39,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:39,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-13 13:16:39,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:39,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:16:39,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:39,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 13:16:39,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:16:39,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:16:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:39,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:39,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:39,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:16:39,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:39,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:16:39,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:39,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:16:39,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:39,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:16:39,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:16:39,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:16:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:39,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:39,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:39,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:16:39,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:39,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:16:39,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:39,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:16:39,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:39,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:16:39,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:16:39,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:16:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:39,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:39,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:39,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:16:39,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:39,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 13:16:39,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:39,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:16:39,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:16:39,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:16:39,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:16:39,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:16:39,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:39,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:39,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:39,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:39,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:39,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:16:39,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:39,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:39,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:16:39,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:39,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:16:39,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 13:16:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:39,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:39,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:39,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:39,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:39,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:16:39,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:39,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:39,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:16:39,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:39,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:16:39,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-13 13:16:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:39,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:39,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:39,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:39,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:39,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:16:39,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:39,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:39,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:16:39,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:39,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:16:39,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:16:39,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [768527009] [2020-10-13 13:16:39,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:16:39,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 13:16:39,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738490855] [2020-10-13 13:16:39,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:16:39,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:16:39,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:16:39,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:16:39,536 INFO L87 Difference]: Start difference. First operand 660 states and 1047 transitions. Second operand 9 states. [2020-10-13 13:16:40,037 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-13 13:16:43,783 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:16:44,010 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:16:44,481 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:16:44,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:16:44,973 INFO L93 Difference]: Finished difference Result 1296 states and 2052 transitions. [2020-10-13 13:16:44,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:16:44,973 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 139 [2020-10-13 13:16:44,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:16:44,981 INFO L225 Difference]: With dead ends: 1296 [2020-10-13 13:16:44,982 INFO L226 Difference]: Without dead ends: 1050 [2020-10-13 13:16:44,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2020-10-13 13:16:44,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2020-10-13 13:16:45,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 887. [2020-10-13 13:16:45,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 887 states. [2020-10-13 13:16:45,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1403 transitions. [2020-10-13 13:16:45,084 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1403 transitions. Word has length 139 [2020-10-13 13:16:45,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:16:45,084 INFO L479 AbstractCegarLoop]: Abstraction has 887 states and 1403 transitions. [2020-10-13 13:16:45,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:16:45,085 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1403 transitions. [2020-10-13 13:16:45,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-13 13:16:45,087 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:16:45,087 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] [2020-10-13 13:16:45,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:16:45,088 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:16:45,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:16:45,089 INFO L82 PathProgramCache]: Analyzing trace with hash 97680642, now seen corresponding path program 1 times [2020-10-13 13:16:45,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:16:45,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719894529] [2020-10-13 13:16:45,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:16:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:45,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:45,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:45,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:45,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:45,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:45,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:46,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:46,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:50,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:50,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-13 13:16:50,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 13:16:50,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 13:16:50,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:50,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:16:50,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-13 13:16:50,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 13:16:50,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:50,546 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:16:50,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:16:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:50,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:50,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:50,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:16:50,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:50,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:16:50,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:50,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:50,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:50,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:50,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:16:50,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:16:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:50,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:50,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:50,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 13:16:50,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:50,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-13 13:16:50,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:50,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:16:50,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:50,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:16:50,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:50,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:16:50,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:50,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:50,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:50,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:16:50,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:50,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:16:50,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:50,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:16:50,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:50,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:16:50,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:50,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:16:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:50,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:50,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:50,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:16:50,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:50,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:16:50,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:50,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:16:50,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:50,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:16:50,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:50,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:16:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:50,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:50,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:50,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:16:50,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:50,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:16:50,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:50,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:16:50,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:16:50,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:16:50,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:50,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:16:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:50,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:50,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:50,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:50,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:50,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:16:50,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:50,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:16:50,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:16:50,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:16:50,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:50,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 13:16:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:50,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:50,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:50,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:50,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:50,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:16:50,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:50,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:50,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:16:50,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:50,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:50,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-13 13:16:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:50,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:50,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:16:50,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:16:50,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:16:50,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:16:50,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:16:50,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:16:50,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:16:50,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:16:50,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:16:50,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:16:50,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719894529] [2020-10-13 13:16:50,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:16:50,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:16:50,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643305877] [2020-10-13 13:16:50,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:16:50,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:16:50,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:16:50,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:16:50,970 INFO L87 Difference]: Start difference. First operand 887 states and 1403 transitions. Second operand 10 states. [2020-10-13 13:16:51,312 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:16:56,076 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:16:56,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:16:56,464 INFO L93 Difference]: Finished difference Result 2506 states and 3924 transitions. [2020-10-13 13:16:56,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:16:56,465 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 139 [2020-10-13 13:16:56,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:16:56,476 INFO L225 Difference]: With dead ends: 2506 [2020-10-13 13:16:56,476 INFO L226 Difference]: Without dead ends: 1842 [2020-10-13 13:16:56,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:16:56,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1842 states. [2020-10-13 13:16:56,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1842 to 1507. [2020-10-13 13:16:56,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1507 states. [2020-10-13 13:16:56,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2355 transitions. [2020-10-13 13:16:56,616 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2355 transitions. Word has length 139 [2020-10-13 13:16:56,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:16:56,616 INFO L479 AbstractCegarLoop]: Abstraction has 1507 states and 2355 transitions. [2020-10-13 13:16:56,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:16:56,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2355 transitions. [2020-10-13 13:16:56,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-13 13:16:56,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:16:56,619 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] [2020-10-13 13:16:56,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:16:56,620 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:16:56,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:16:56,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1856710395, now seen corresponding path program 1 times [2020-10-13 13:16:56,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:16:56,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1319104989] [2020-10-13 13:16:56,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:16:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:16:56,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:56,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:56,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:57,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:57,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:57,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:57,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:16:57,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:01,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:01,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:01,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:01,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:01,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-13 13:17:01,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-13 13:17:01,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-13 13:17:01,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:01,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:01,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 13:17:01,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-13 13:17:01,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:02,049 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:17:02,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:17:02,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:02,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:02,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:02,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:17:02,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:02,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:17:02,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:02,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:02,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:02,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:02,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:02,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:17:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:02,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:02,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:02,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 13:17:02,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:02,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 13:17:02,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:02,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:02,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:02,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:17:02,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:02,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:17:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:02,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:02,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:02,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:17:02,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:02,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:17:02,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:02,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:02,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:17:02,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:02,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:17:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:02,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:02,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:02,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:02,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:02,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:17:02,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:02,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:02,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:02,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:17:02,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:02,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:17:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:02,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:02,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:02,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:02,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:02,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:17:02,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:02,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:02,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:02,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:17:02,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:02,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:17:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:02,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:02,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:02,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:02,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:02,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:17:02,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:02,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:02,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:17:02,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:17:02,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:02,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 13:17:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:02,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:02,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:02,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:02,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:02,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:17:02,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:02,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:02,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:02,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:02,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:02,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-13 13:17:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:02,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:02,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:02,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:02,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:02,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:17:02,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:02,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:02,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:02,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:02,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:02,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:17:02,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1319104989] [2020-10-13 13:17:02,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:17:02,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 13:17:02,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938901438] [2020-10-13 13:17:02,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:17:02,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:17:02,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:17:02,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:17:02,408 INFO L87 Difference]: Start difference. First operand 1507 states and 2355 transitions. Second operand 9 states. [2020-10-13 13:17:02,758 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-13 13:17:04,731 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:17:06,286 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:17:06,479 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:17:07,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:17:07,160 INFO L93 Difference]: Finished difference Result 3186 states and 4982 transitions. [2020-10-13 13:17:07,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:17:07,161 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 142 [2020-10-13 13:17:07,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:17:07,173 INFO L225 Difference]: With dead ends: 3186 [2020-10-13 13:17:07,173 INFO L226 Difference]: Without dead ends: 2510 [2020-10-13 13:17:07,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2020-10-13 13:17:07,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2510 states. [2020-10-13 13:17:07,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2510 to 2067. [2020-10-13 13:17:07,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2067 states. [2020-10-13 13:17:07,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2067 states to 2067 states and 3217 transitions. [2020-10-13 13:17:07,359 INFO L78 Accepts]: Start accepts. Automaton has 2067 states and 3217 transitions. Word has length 142 [2020-10-13 13:17:07,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:17:07,360 INFO L479 AbstractCegarLoop]: Abstraction has 2067 states and 3217 transitions. [2020-10-13 13:17:07,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:17:07,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2067 states and 3217 transitions. [2020-10-13 13:17:07,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-13 13:17:07,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:17:07,363 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] [2020-10-13 13:17:07,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:17:07,364 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:17:07,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:17:07,364 INFO L82 PathProgramCache]: Analyzing trace with hash 403493399, now seen corresponding path program 1 times [2020-10-13 13:17:07,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:17:07,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580486624] [2020-10-13 13:17:07,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:17:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:07,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:07,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:07,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:07,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:07,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:07,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:08,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:08,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:11,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:11,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:12,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:12,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-13 13:17:12,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-13 13:17:12,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-13 13:17:12,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:12,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:12,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-13 13:17:12,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 13:17:12,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:12,766 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:17:12,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:17:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:12,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:12,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:12,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:17:12,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:12,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:17:12,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:12,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:12,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:12,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:12,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:12,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:17:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:12,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:12,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:12,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 13:17:12,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:12,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 13:17:12,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:12,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:12,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:12,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 13:17:12,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:12,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:17:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:12,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:12,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:12,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:17:12,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:12,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:17:12,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:12,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:12,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:12,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:17:12,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:12,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:17:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:12,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:12,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:12,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:12,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:12,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:17:12,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:12,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:12,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:12,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:17:12,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 30 [2020-10-13 13:17:12,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:17:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:12,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:12,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:12,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:12,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:12,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:17:12,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:12,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:12,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:12,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:17:12,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:13,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:17:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:13,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:13,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:13,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:13,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:13,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:17:13,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:13,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:13,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:13,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:17:13,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:13,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 13:17:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:13,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:13,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:13,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:13,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:13,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:17:13,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:13,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:13,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:17:13,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:17:13,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:13,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-13 13:17:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:13,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:13,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:13,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:13,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:13,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:17:13,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:13,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:13,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:13,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:13,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:13,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:17:13,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580486624] [2020-10-13 13:17:13,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:17:13,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:17:13,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546827385] [2020-10-13 13:17:13,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:17:13,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:17:13,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:17:13,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:17:13,119 INFO L87 Difference]: Start difference. First operand 2067 states and 3217 transitions. Second operand 10 states. [2020-10-13 13:17:13,468 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:17:18,103 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:17:18,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:17:18,611 INFO L93 Difference]: Finished difference Result 6484 states and 10020 transitions. [2020-10-13 13:17:18,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:17:18,613 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 142 [2020-10-13 13:17:18,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:17:18,634 INFO L225 Difference]: With dead ends: 6484 [2020-10-13 13:17:18,634 INFO L226 Difference]: Without dead ends: 4670 [2020-10-13 13:17:18,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:17:18,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4670 states. [2020-10-13 13:17:18,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4670 to 3753. [2020-10-13 13:17:18,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3753 states. [2020-10-13 13:17:18,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 5761 transitions. [2020-10-13 13:17:18,955 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 5761 transitions. Word has length 142 [2020-10-13 13:17:18,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:17:18,956 INFO L479 AbstractCegarLoop]: Abstraction has 3753 states and 5761 transitions. [2020-10-13 13:17:18,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:17:18,956 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 5761 transitions. [2020-10-13 13:17:18,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-13 13:17:18,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:17:18,958 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] [2020-10-13 13:17:18,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:17:18,959 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:17:18,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:17:18,959 INFO L82 PathProgramCache]: Analyzing trace with hash 148675538, now seen corresponding path program 1 times [2020-10-13 13:17:18,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:17:18,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [927815262] [2020-10-13 13:17:18,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:17:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:19,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:19,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:19,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:19,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:19,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:19,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:19,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:19,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:19,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:24,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:24,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-13 13:17:24,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:17:24,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 13:17:24,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:24,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:17:24,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-13 13:17:24,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 13:17:24,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:24,397 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:17:24,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:17:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:24,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:24,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:24,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:17:24,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:24,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:17:24,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:24,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:24,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:24,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:24,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:24,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:17:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:24,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:24,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:24,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 13:17:24,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:24,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-13 13:17:24,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:24,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:17:24,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:24,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 13:17:24,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:24,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:17:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:24,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:24,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:24,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:17:24,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:24,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:17:24,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:24,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:24,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:24,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:17:24,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:24,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:17:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:24,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:24,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:24,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:24,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:24,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:17:24,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:24,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:24,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:17:24,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:17:24,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:24,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:17:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:24,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:24,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:24,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:24,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:24,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:17:24,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:24,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:24,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:17:24,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:17:24,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:24,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:17:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:24,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:24,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:24,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:24,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:24,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:17:24,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:24,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:24,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:17:24,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:17:24,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:24,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 13:17:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:24,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:24,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:24,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:24,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:24,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:17:24,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:24,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:24,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:17:24,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:17:24,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:25,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 13:17:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:25,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:25,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:25,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:25,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:25,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:17:25,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:25,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:25,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:17:25,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:17:25,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:25,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:17:25,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [927815262] [2020-10-13 13:17:25,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:17:25,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-13 13:17:25,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685648593] [2020-10-13 13:17:25,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:17:25,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:17:25,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:17:25,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:17:25,055 INFO L87 Difference]: Start difference. First operand 3753 states and 5761 transitions. Second operand 16 states. [2020-10-13 13:17:25,805 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 244 [2020-10-13 13:17:27,752 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:17:28,128 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-13 13:17:28,502 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-10-13 13:17:28,902 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 118 [2020-10-13 13:17:29,561 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 118 [2020-10-13 13:17:30,203 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 118 [2020-10-13 13:17:30,742 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 118 [2020-10-13 13:17:31,204 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:17:31,942 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-10-13 13:17:32,274 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:17:33,103 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:17:33,240 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:17:33,399 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:17:34,388 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:17:34,588 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:17:35,358 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:17:36,124 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-13 13:17:36,268 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:17:36,424 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:17:36,574 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:17:36,733 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:17:37,517 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:17:37,699 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:17:38,351 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:17:38,519 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:17:38,893 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2020-10-13 13:17:39,052 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:17:39,198 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:17:39,340 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:17:39,508 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:17:39,656 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:17:41,020 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:17:41,922 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-13 13:17:42,534 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:17:42,683 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:17:42,839 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:17:42,997 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:17:43,607 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:17:43,788 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:17:43,938 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:17:44,107 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:17:44,284 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:17:44,900 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:17:45,056 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:17:45,228 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:17:45,748 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:17:46,027 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:17:47,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:17:47,287 INFO L93 Difference]: Finished difference Result 30746 states and 47893 transitions. [2020-10-13 13:17:47,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-10-13 13:17:47,288 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 145 [2020-10-13 13:17:47,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:17:47,433 INFO L225 Difference]: With dead ends: 30746 [2020-10-13 13:17:47,433 INFO L226 Difference]: Without dead ends: 27246 [2020-10-13 13:17:47,458 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2211 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=1295, Invalid=5347, Unknown=0, NotChecked=0, Total=6642 [2020-10-13 13:17:47,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27246 states. [2020-10-13 13:17:49,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27246 to 21912. [2020-10-13 13:17:49,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21912 states. [2020-10-13 13:17:50,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21912 states to 21912 states and 33894 transitions. [2020-10-13 13:17:50,011 INFO L78 Accepts]: Start accepts. Automaton has 21912 states and 33894 transitions. Word has length 145 [2020-10-13 13:17:50,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:17:50,012 INFO L479 AbstractCegarLoop]: Abstraction has 21912 states and 33894 transitions. [2020-10-13 13:17:50,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:17:50,012 INFO L276 IsEmpty]: Start isEmpty. Operand 21912 states and 33894 transitions. [2020-10-13 13:17:50,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-13 13:17:50,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:17:50,015 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] [2020-10-13 13:17:50,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:17:50,016 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:17:50,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:17:50,016 INFO L82 PathProgramCache]: Analyzing trace with hash -40006913, now seen corresponding path program 1 times [2020-10-13 13:17:50,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:17:50,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933858807] [2020-10-13 13:17:50,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:17:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:50,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:50,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:50,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:50,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:50,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:50,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:50,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:50,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:51,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:51,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:55,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:55,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-13 13:17:55,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-13 13:17:55,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-13 13:17:55,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:55,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:17:55,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-13 13:17:55,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 13:17:55,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:55,431 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:17:55,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:17:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:55,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:55,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:55,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:17:55,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:55,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 13:17:55,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:55,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:55,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:55,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:55,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:55,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:17:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:55,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:55,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:55,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 13:17:55,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:55,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 13:17:55,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:55,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:17:55,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:55,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-13 13:17:55,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:55,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:17:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:55,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:55,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:55,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:17:55,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:55,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:17:55,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:55,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:55,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:55,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:17:55,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:55,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:17:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:55,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:55,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:55,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:55,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:55,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:17:55,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:55,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:55,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:17:55,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:17:55,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:55,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:17:55,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:55,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:55,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:55,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:55,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:55,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:17:55,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:55,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:55,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:55,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:17:55,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:55,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:17:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:55,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:55,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:55,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:55,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:55,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:17:55,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:55,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:55,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:55,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:17:55,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:55,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 13:17:55,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:55,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:55,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:55,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:55,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:55,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:17:55,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:55,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:55,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:55,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:17:55,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:55,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 13:17:55,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:55,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:55,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:55,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:17:55,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:55,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:17:55,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:55,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:55,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:17:55,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:17:55,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:55,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:17:55,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933858807] [2020-10-13 13:17:55,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:17:55,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:17:55,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910708763] [2020-10-13 13:17:55,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:17:55,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:17:55,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:17:55,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:17:55,846 INFO L87 Difference]: Start difference. First operand 21912 states and 33894 transitions. Second operand 11 states. [2020-10-13 13:17:56,190 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:17:57,777 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:17:58,048 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:18:01,058 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:18:01,408 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-13 13:18:02,318 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:18:02,474 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:18:02,614 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:18:02,746 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:18:03,642 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:18:03,800 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:18:04,845 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:18:05,864 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:18:08,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:18:08,601 INFO L93 Difference]: Finished difference Result 76328 states and 118794 transitions. [2020-10-13 13:18:08,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 13:18:08,601 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 146 [2020-10-13 13:18:08,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:18:08,833 INFO L225 Difference]: With dead ends: 76328 [2020-10-13 13:18:08,833 INFO L226 Difference]: Without dead ends: 54689 [2020-10-13 13:18:08,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 13:18:08,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54689 states. [2020-10-13 13:18:11,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54689 to 43770. [2020-10-13 13:18:11,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43770 states. [2020-10-13 13:18:11,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43770 states to 43770 states and 67907 transitions. [2020-10-13 13:18:11,390 INFO L78 Accepts]: Start accepts. Automaton has 43770 states and 67907 transitions. Word has length 146 [2020-10-13 13:18:11,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:18:11,390 INFO L479 AbstractCegarLoop]: Abstraction has 43770 states and 67907 transitions. [2020-10-13 13:18:11,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:18:11,391 INFO L276 IsEmpty]: Start isEmpty. Operand 43770 states and 67907 transitions. [2020-10-13 13:18:11,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-13 13:18:11,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:18:11,393 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] [2020-10-13 13:18:11,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:18:11,394 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:18:11,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:18:11,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1611916569, now seen corresponding path program 1 times [2020-10-13 13:18:11,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:18:11,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1471507553] [2020-10-13 13:18:11,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:18:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:11,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:11,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:11,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:11,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:11,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:11,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:12,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:12,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:13,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:16,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:16,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-13 13:18:16,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:18:16,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-13 13:18:16,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:16,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:18:16,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 13:18:16,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 13:18:16,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:16,821 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:18:16,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:18:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:16,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:16,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:16,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:18:16,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:16,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:18:16,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:16,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:16,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:16,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:16,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:16,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:18:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:16,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:16,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:16,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 13:18:16,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:16,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 13:18:16,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:16,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:16,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:16,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 13:18:16,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:16,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:18:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:16,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:16,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:16,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:18:16,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:16,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:18:16,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:16,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:16,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:16,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:18:16,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:16,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:18:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:16,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:16,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:16,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:16,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:16,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:18:16,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:16,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:16,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:16,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:18:16,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:18:16,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:18:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:16,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:17,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:17,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:17,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:17,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:18:17,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:17,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:17,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:17,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:18:17,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:17,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:18:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:17,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:17,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:17,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:17,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:17,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:18:17,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:17,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:17,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:17,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:18:17,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:17,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 13:18:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:17,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:17,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:17,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:18:17,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:17,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:18:17,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:17,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:18:17,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:18:17,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:18:17,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:17,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 13:18:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:17,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:17,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:17,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:18:17,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:17,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:18:17,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:17,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:17,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:18:17,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:17,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:17,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:18:17,147 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1471507553] [2020-10-13 13:18:17,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:18:17,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 13:18:17,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990124817] [2020-10-13 13:18:17,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:18:17,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:18:17,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:18:17,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:18:17,148 INFO L87 Difference]: Start difference. First operand 43770 states and 67907 transitions. Second operand 9 states. [2020-10-13 13:18:17,529 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-13 13:18:19,896 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:18:21,451 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:18:21,677 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:18:24,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:18:24,543 INFO L93 Difference]: Finished difference Result 104721 states and 163280 transitions. [2020-10-13 13:18:24,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:18:24,544 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 146 [2020-10-13 13:18:24,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:18:24,879 INFO L225 Difference]: With dead ends: 104721 [2020-10-13 13:18:24,879 INFO L226 Difference]: Without dead ends: 78324 [2020-10-13 13:18:24,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2020-10-13 13:18:25,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78324 states. [2020-10-13 13:18:28,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78324 to 63727. [2020-10-13 13:18:28,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63727 states. [2020-10-13 13:18:29,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63727 states to 63727 states and 98455 transitions. [2020-10-13 13:18:29,044 INFO L78 Accepts]: Start accepts. Automaton has 63727 states and 98455 transitions. Word has length 146 [2020-10-13 13:18:29,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:18:29,044 INFO L479 AbstractCegarLoop]: Abstraction has 63727 states and 98455 transitions. [2020-10-13 13:18:29,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:18:29,044 INFO L276 IsEmpty]: Start isEmpty. Operand 63727 states and 98455 transitions. [2020-10-13 13:18:29,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-13 13:18:29,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:18:29,046 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] [2020-10-13 13:18:29,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 13:18:29,046 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:18:29,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:18:29,046 INFO L82 PathProgramCache]: Analyzing trace with hash 919739837, now seen corresponding path program 1 times [2020-10-13 13:18:29,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:18:29,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119405866] [2020-10-13 13:18:29,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:18:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:29,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:29,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:29,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:29,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:29,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:29,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:30,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:30,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:30,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:30,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:30,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:34,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:34,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-13 13:18:34,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-13 13:18:34,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 13:18:34,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:34,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:18:34,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-13 13:18:34,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:18:34,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:34,424 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:18:34,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:18:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:34,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:34,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:34,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:18:34,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:34,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:18:34,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:34,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:34,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:34,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:34,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:34,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:18:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:34,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:34,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:34,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 13:18:34,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:34,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 13:18:34,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:34,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:34,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:34,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:18:34,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:34,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:18:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:34,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:34,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:34,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:18:34,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:34,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:18:34,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:34,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:34,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:34,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:18:34,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:34,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:18:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:34,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:34,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:34,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:18:34,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:34,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:18:34,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:34,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:18:34,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:18:34,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:18:34,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:34,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-13 13:18:34,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:34,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:34,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:34,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:34,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:34,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:18:34,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:34,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:34,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:18:34,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:34,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:34,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 13:18:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:34,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:34,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:34,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:34,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:34,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:18:34,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:34,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:34,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:18:34,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:34,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:34,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-13 13:18:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:34,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:34,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:34,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:34,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:34,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:18:34,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:34,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:34,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:18:34,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:34,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:34,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 13:18:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:34,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:34,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:34,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:18:34,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:34,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:18:34,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:34,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:34,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:18:34,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:34,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:34,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:18:34,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119405866] [2020-10-13 13:18:34,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:18:34,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 13:18:34,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233255780] [2020-10-13 13:18:34,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:18:34,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:18:34,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:18:34,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:18:34,737 INFO L87 Difference]: Start difference. First operand 63727 states and 98455 transitions. Second operand 9 states. [2020-10-13 13:18:35,141 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-13 13:18:37,078 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:18:38,477 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:18:38,703 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:18:38,899 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:18:39,422 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:18:39,949 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:18:48,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:18:48,084 INFO L93 Difference]: Finished difference Result 175541 states and 272384 transitions. [2020-10-13 13:18:48,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:18:48,087 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 146 [2020-10-13 13:18:48,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:18:48,597 INFO L225 Difference]: With dead ends: 175541 [2020-10-13 13:18:48,597 INFO L226 Difference]: Without dead ends: 124204 [2020-10-13 13:18:48,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2020-10-13 13:18:48,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124204 states. [2020-10-13 13:18:54,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124204 to 102152. [2020-10-13 13:18:54,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102152 states. [2020-10-13 13:18:54,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102152 states to 102152 states and 155897 transitions. [2020-10-13 13:18:54,600 INFO L78 Accepts]: Start accepts. Automaton has 102152 states and 155897 transitions. Word has length 146 [2020-10-13 13:18:54,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:18:54,601 INFO L479 AbstractCegarLoop]: Abstraction has 102152 states and 155897 transitions. [2020-10-13 13:18:54,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:18:54,601 INFO L276 IsEmpty]: Start isEmpty. Operand 102152 states and 155897 transitions. [2020-10-13 13:18:54,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-13 13:18:54,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:18:54,603 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] [2020-10-13 13:18:54,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 13:18:54,603 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:18:54,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:18:54,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1999729733, now seen corresponding path program 1 times [2020-10-13 13:18:54,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:18:54,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995935497] [2020-10-13 13:18:54,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:18:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:54,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:54,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:54,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:54,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:54,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:55,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:55,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:55,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:56,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:56,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:00,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:00,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-13 13:19:00,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-13 13:19:00,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6010 [2020-10-13 13:19:00,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:00,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:19:00,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-13 13:19:00,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 13:19:00,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:01,006 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:19:01,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:19:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:01,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:01,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:01,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:19:01,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:01,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:19:01,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:01,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:01,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:01,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:01,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:01,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:19:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:01,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:01,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:01,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 13:19:01,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:01,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 13:19:01,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:01,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:19:01,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:01,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 13:19:01,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:01,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:19:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:01,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:01,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:01,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:19:01,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:01,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:19:01,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:01,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:01,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:01,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:19:01,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:01,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:19:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:01,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:01,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:01,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:19:01,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:01,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:19:01,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:01,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:01,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:01,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:19:01,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:01,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:19:01,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:01,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:01,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:01,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:19:01,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:01,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:19:01,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:01,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:19:01,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:19:01,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:19:01,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:01,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:19:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:01,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:01,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:01,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:19:01,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:01,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:19:01,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:01,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:01,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:01,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:19:01,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:01,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 13:19:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:01,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:01,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:01,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:19:01,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:01,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:19:01,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:01,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:01,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:01,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:19:01,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:01,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 13:19:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:01,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:01,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:01,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:19:01,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:01,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:19:01,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:01,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:01,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:19:01,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:19:01,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:01,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:19:01,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995935497] [2020-10-13 13:19:01,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:19:01,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:19:01,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806955601] [2020-10-13 13:19:01,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:19:01,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:19:01,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:19:01,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:19:01,362 INFO L87 Difference]: Start difference. First operand 102152 states and 155897 transitions. Second operand 11 states. [2020-10-13 13:19:01,722 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:19:03,480 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:19:03,972 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:19:06,619 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:19:06,942 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-13 13:19:07,866 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:19:09,353 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:19:09,626 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:19:09,771 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:19:24,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:19:24,727 INFO L93 Difference]: Finished difference Result 405468 states and 622026 transitions. [2020-10-13 13:19:24,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 13:19:24,727 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 147 [2020-10-13 13:19:24,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:19:25,514 INFO L225 Difference]: With dead ends: 405468 [2020-10-13 13:19:25,514 INFO L226 Difference]: Without dead ends: 303556 [2020-10-13 13:19:25,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 13:19:25,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303556 states.