/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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 language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 14:00:22,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 14:00:22,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 14:00:22,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 14:00:22,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 14:00:22,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 14:00:22,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 14:00:22,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 14:00:22,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 14:00:22,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 14:00:22,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 14:00:22,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 14:00:22,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 14:00:22,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 14:00:22,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 14:00:22,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 14:00:22,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 14:00:22,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 14:00:22,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 14:00:22,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 14:00:22,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 14:00:22,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 14:00:22,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 14:00:22,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 14:00:22,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 14:00:22,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 14:00:22,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 14:00:22,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 14:00:22,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 14:00:22,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 14:00:22,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 14:00:22,920 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 14:00:22,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 14:00:22,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 14:00:22,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 14:00:22,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 14:00:22,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 14:00:22,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 14:00:22,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 14:00:22,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 14:00:22,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 14:00:22,935 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 [2020-10-29 14:00:23,009 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 14:00:23,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 14:00:23,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 14:00:23,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 14:00:23,016 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 14:00:23,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 14:00:23,017 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 14:00:23,017 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 14:00:23,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 14:00:23,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 14:00:23,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 14:00:23,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 14:00:23,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 14:00:23,020 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 14:00:23,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 14:00:23,020 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 14:00:23,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 14:00:23,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 14:00:23,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 14:00:23,022 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 14:00:23,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 14:00:23,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 14:00:23,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 14:00:23,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 14:00:23,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 14:00:23,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 14:00:23,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 14:00:23,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 14:00:23,024 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 14:00:23,024 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 14:00:23,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 14:00:23,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 14:00:23,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 14:00:23,517 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 14:00:23,518 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 14:00:23,523 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2020-10-29 14:00:23,625 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c46ba4dd0/833b1f47ace64296aaabe148558c6435/FLAGdae0e820b [2020-10-29 14:00:24,491 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 14:00:24,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2020-10-29 14:00:24,512 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c46ba4dd0/833b1f47ace64296aaabe148558c6435/FLAGdae0e820b [2020-10-29 14:00:24,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c46ba4dd0/833b1f47ace64296aaabe148558c6435 [2020-10-29 14:00:24,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 14:00:24,692 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 14:00:24,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 14:00:24,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 14:00:24,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 14:00:24,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:00:24" (1/1) ... [2020-10-29 14:00:24,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ec7e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:00:24, skipping insertion in model container [2020-10-29 14:00:24,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:00:24" (1/1) ... [2020-10-29 14:00:24,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 14:00:24,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 14:00:25,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 14:00:25,331 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 14:00:25,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 14:00:25,533 INFO L208 MainTranslator]: Completed translation [2020-10-29 14:00:25,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:00:25 WrapperNode [2020-10-29 14:00:25,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 14:00:25,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 14:00:25,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 14:00:25,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 14:00:25,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:00:25" (1/1) ... [2020-10-29 14:00:25,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:00:25" (1/1) ... [2020-10-29 14:00:25,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:00:25" (1/1) ... [2020-10-29 14:00:25,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:00:25" (1/1) ... [2020-10-29 14:00:25,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:00:25" (1/1) ... [2020-10-29 14:00:25,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:00:25" (1/1) ... [2020-10-29 14:00:25,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:00:25" (1/1) ... [2020-10-29 14:00:25,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 14:00:25,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 14:00:25,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 14:00:25,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 14:00:25,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:00:25" (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 [2020-10-29 14:00:25,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 14:00:25,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 14:00:25,760 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 14:00:25,760 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 14:00:25,760 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 14:00:25,761 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 14:00:25,761 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 14:00:25,761 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 14:00:25,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 14:00:25,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-29 14:00:25,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-29 14:00:25,762 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-29 14:00:25,762 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 14:00:25,762 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-29 14:00:25,762 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-29 14:00:25,762 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-29 14:00:25,762 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-29 14:00:25,763 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-29 14:00:25,763 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-29 14:00:25,763 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-29 14:00:25,763 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 14:00:25,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 14:00:25,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 14:00:25,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 14:00:25,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 14:00:25,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 14:00:25,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 14:00:27,143 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 14:00:27,143 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-29 14:00:27,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:00:27 BoogieIcfgContainer [2020-10-29 14:00:27,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 14:00:27,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 14:00:27,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 14:00:27,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 14:00:27,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 02:00:24" (1/3) ... [2020-10-29 14:00:27,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1201c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 02:00:27, skipping insertion in model container [2020-10-29 14:00:27,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:00:25" (2/3) ... [2020-10-29 14:00:27,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1201c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 02:00:27, skipping insertion in model container [2020-10-29 14:00:27,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:00:27" (3/3) ... [2020-10-29 14:00:27,155 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2020-10-29 14:00:27,168 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 14:00:27,174 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 14:00:27,189 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 14:00:27,225 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 14:00:27,225 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 14:00:27,225 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 14:00:27,225 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 14:00:27,225 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 14:00:27,226 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 14:00:27,226 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 14:00:27,226 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 14:00:27,252 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states. [2020-10-29 14:00:27,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-29 14:00:27,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:00:27,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:00:27,271 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:00:27,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:00:27,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1244911398, now seen corresponding path program 1 times [2020-10-29 14:00:27,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:00:27,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576002994] [2020-10-29 14:00:27,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:00:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:00:27,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:28,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:28,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:28,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:28,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:28,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:29,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:29,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:29,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:30,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:30,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:31,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:32,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:00:32,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 14:00:32,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-29 14:00:32,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-29 14:00:32,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:00:32,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:00:32,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:00:32,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-29 14:00:32,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-29 14:00:32,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 14:00:33,367 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 14:00:33,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:00:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:00:33,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:33,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:00:33,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:00:33,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:00:33,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 14:00:33,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:00:33,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:00:33,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:00:33,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:00:33,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:00:33,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:00:33,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:00:33,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1576002994] [2020-10-29 14:00:33,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:00:33,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 14:00:33,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130417054] [2020-10-29 14:00:33,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 14:00:33,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:00:33,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 14:00:33,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 14:00:33,560 INFO L87 Difference]: Start difference. First operand 333 states. Second operand 4 states. [2020-10-29 14:00:34,013 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-29 14:00:35,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:00:35,987 INFO L93 Difference]: Finished difference Result 667 states and 1158 transitions. [2020-10-29 14:00:35,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 14:00:35,989 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 155 [2020-10-29 14:00:35,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:00:36,010 INFO L225 Difference]: With dead ends: 667 [2020-10-29 14:00:36,010 INFO L226 Difference]: Without dead ends: 530 [2020-10-29 14:00:36,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 14:00:36,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-10-29 14:00:36,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 527. [2020-10-29 14:00:36,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2020-10-29 14:00:36,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 784 transitions. [2020-10-29 14:00:36,157 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 784 transitions. Word has length 155 [2020-10-29 14:00:36,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:00:36,162 INFO L481 AbstractCegarLoop]: Abstraction has 527 states and 784 transitions. [2020-10-29 14:00:36,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 14:00:36,162 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 784 transitions. [2020-10-29 14:00:36,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-29 14:00:36,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:00:36,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:00:36,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 14:00:36,180 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:00:36,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:00:36,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1928097310, now seen corresponding path program 1 times [2020-10-29 14:00:36,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:00:36,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [624734810] [2020-10-29 14:00:36,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:00:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:00:36,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:36,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:36,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:36,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:36,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:36,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:37,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:37,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:37,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:38,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:38,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:41,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:00:41,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 14:00:41,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-29 14:00:41,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-29 14:00:41,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:00:41,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:00:41,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 14:00:41,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 14:00:41,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 14:00:41,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:00:41,811 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 14:00:41,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:00:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:00:41,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:41,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:00:41,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:00:41,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:00:41,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 14:00:41,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:00:41,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:00:41,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:00:41,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:00:41,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:00:41,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:00:41,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:00:41,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [624734810] [2020-10-29 14:00:41,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:00:41,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 14:00:41,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775363199] [2020-10-29 14:00:41,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 14:00:41,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:00:41,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 14:00:41,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 14:00:41,928 INFO L87 Difference]: Start difference. First operand 527 states and 784 transitions. Second operand 5 states. [2020-10-29 14:00:44,018 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-29 14:00:45,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:00:45,092 INFO L93 Difference]: Finished difference Result 1507 states and 2232 transitions. [2020-10-29 14:00:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 14:00:45,092 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-10-29 14:00:45,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:00:45,105 INFO L225 Difference]: With dead ends: 1507 [2020-10-29 14:00:45,105 INFO L226 Difference]: Without dead ends: 1003 [2020-10-29 14:00:45,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 14:00:45,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2020-10-29 14:00:45,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1000. [2020-10-29 14:00:45,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1000 states. [2020-10-29 14:00:45,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1469 transitions. [2020-10-29 14:00:45,179 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1469 transitions. Word has length 155 [2020-10-29 14:00:45,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:00:45,179 INFO L481 AbstractCegarLoop]: Abstraction has 1000 states and 1469 transitions. [2020-10-29 14:00:45,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 14:00:45,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1469 transitions. [2020-10-29 14:00:45,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-29 14:00:45,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:00:45,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:00:45,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 14:00:45,183 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:00:45,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:00:45,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1492366493, now seen corresponding path program 1 times [2020-10-29 14:00:45,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:00:45,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670890947] [2020-10-29 14:00:45,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:00:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:00:45,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:45,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:45,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:45,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:45,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:45,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:45,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:46,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:48,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:48,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:48,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:50,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:00:50,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-29 14:00:50,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-29 14:00:50,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-29 14:00:50,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:00:50,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:00:50,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 14:00:50,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 14:00:50,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 14:00:50,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:00:50,939 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 14:00:50,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:00:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:00:50,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:50,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:00:50,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:00:50,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:00:50,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 14:00:50,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:00:50,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:00:50,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:00:50,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:00:50,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:00:50,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:00:51,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:00:51,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670890947] [2020-10-29 14:00:51,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:00:51,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 14:00:51,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573679551] [2020-10-29 14:00:51,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 14:00:51,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:00:51,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 14:00:51,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 14:00:51,097 INFO L87 Difference]: Start difference. First operand 1000 states and 1469 transitions. Second operand 5 states. [2020-10-29 14:00:53,390 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-29 14:00:54,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:00:54,637 INFO L93 Difference]: Finished difference Result 2706 states and 3949 transitions. [2020-10-29 14:00:54,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 14:00:54,638 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-10-29 14:00:54,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:00:54,648 INFO L225 Difference]: With dead ends: 2706 [2020-10-29 14:00:54,649 INFO L226 Difference]: Without dead ends: 1740 [2020-10-29 14:00:54,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 14:00:54,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2020-10-29 14:00:54,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1737. [2020-10-29 14:00:54,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1737 states. [2020-10-29 14:00:54,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1737 states to 1737 states and 2510 transitions. [2020-10-29 14:00:54,765 INFO L78 Accepts]: Start accepts. Automaton has 1737 states and 2510 transitions. Word has length 156 [2020-10-29 14:00:54,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:00:54,765 INFO L481 AbstractCegarLoop]: Abstraction has 1737 states and 2510 transitions. [2020-10-29 14:00:54,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 14:00:54,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1737 states and 2510 transitions. [2020-10-29 14:00:54,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-29 14:00:54,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:00:54,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:00:54,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 14:00:54,770 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:00:54,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:00:54,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1529044540, now seen corresponding path program 1 times [2020-10-29 14:00:54,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:00:54,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197129276] [2020-10-29 14:00:54,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:00:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:00:54,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:54,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:54,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:54,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:55,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:55,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:55,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:55,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:00:59,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:00:59,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-29 14:00:59,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 14:00:59,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-29 14:00:59,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:00:59,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:00:59,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 14:00:59,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 14:00:59,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 14:00:59,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:01:00,312 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 14:01:00,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:01:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:01:00,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:00,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:01:00,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:01:00,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:01:00,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 14:01:00,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:01:00,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:01:00,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:01:00,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:01:00,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:01:00,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:01:00,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:01:00,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197129276] [2020-10-29 14:01:00,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:01:00,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 14:01:00,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868935001] [2020-10-29 14:01:00,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 14:01:00,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:01:00,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 14:01:00,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 14:01:00,409 INFO L87 Difference]: Start difference. First operand 1737 states and 2510 transitions. Second operand 5 states. [2020-10-29 14:01:02,681 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-29 14:01:03,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:01:03,888 INFO L93 Difference]: Finished difference Result 4991 states and 7213 transitions. [2020-10-29 14:01:03,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 14:01:03,889 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-10-29 14:01:03,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:01:03,911 INFO L225 Difference]: With dead ends: 4991 [2020-10-29 14:01:03,911 INFO L226 Difference]: Without dead ends: 3389 [2020-10-29 14:01:03,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 14:01:03,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3389 states. [2020-10-29 14:01:04,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3389 to 3386. [2020-10-29 14:01:04,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2020-10-29 14:01:04,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 4842 transitions. [2020-10-29 14:01:04,155 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 4842 transitions. Word has length 157 [2020-10-29 14:01:04,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:01:04,157 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 4842 transitions. [2020-10-29 14:01:04,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 14:01:04,157 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 4842 transitions. [2020-10-29 14:01:04,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-29 14:01:04,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:01:04,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:01:04,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 14:01:04,164 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:01:04,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:01:04,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1005823454, now seen corresponding path program 1 times [2020-10-29 14:01:04,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:01:04,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [227574277] [2020-10-29 14:01:04,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:01:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:01:04,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:04,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:04,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:04,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:04,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:04,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:05,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:05,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:08,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:08,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:08,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:08,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:09,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:01:09,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-29 14:01:09,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-29 14:01:09,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 14:01:09,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:01:09,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:01:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 14:01:09,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 14:01:09,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 14:01:09,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:01:09,651 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 14:01:09,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:01:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:01:09,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:09,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:01:09,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:01:09,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:01:09,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 14:01:09,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:01:09,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:01:09,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:01:09,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:01:09,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:01:09,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:01:09,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:01:09,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [227574277] [2020-10-29 14:01:09,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:01:09,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 14:01:09,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715664591] [2020-10-29 14:01:09,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 14:01:09,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:01:09,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 14:01:09,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 14:01:09,756 INFO L87 Difference]: Start difference. First operand 3386 states and 4842 transitions. Second operand 5 states. [2020-10-29 14:01:11,984 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-29 14:01:13,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:01:13,115 INFO L93 Difference]: Finished difference Result 9793 states and 13933 transitions. [2020-10-29 14:01:13,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 14:01:13,115 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2020-10-29 14:01:13,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:01:13,147 INFO L225 Difference]: With dead ends: 9793 [2020-10-29 14:01:13,147 INFO L226 Difference]: Without dead ends: 6492 [2020-10-29 14:01:13,155 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 14:01:13,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6492 states. [2020-10-29 14:01:13,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6492 to 6489. [2020-10-29 14:01:13,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6489 states. [2020-10-29 14:01:13,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 9133 transitions. [2020-10-29 14:01:13,546 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 9133 transitions. Word has length 158 [2020-10-29 14:01:13,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:01:13,546 INFO L481 AbstractCegarLoop]: Abstraction has 6489 states and 9133 transitions. [2020-10-29 14:01:13,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 14:01:13,547 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 9133 transitions. [2020-10-29 14:01:13,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-29 14:01:13,557 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:01:13,558 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:01:13,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 14:01:13,558 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:01:13,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:01:13,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1025632644, now seen corresponding path program 1 times [2020-10-29 14:01:13,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:01:13,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [991141937] [2020-10-29 14:01:13,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:01:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:01:13,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:13,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:13,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:13,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:13,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:14,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:14,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:14,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:14,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:17,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:18,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:01:18,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-29 14:01:18,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-29 14:01:18,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-29 14:01:18,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:01:18,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:01:18,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 14:01:18,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 14:01:18,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-29 14:01:18,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:01:19,094 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 14:01:19,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:01:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:01:19,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:19,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:01:19,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:01:19,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:01:19,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 14:01:19,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:01:19,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:01:19,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:01:19,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:01:19,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:01:19,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:01:19,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:01:19,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [991141937] [2020-10-29 14:01:19,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:01:19,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 14:01:19,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434293495] [2020-10-29 14:01:19,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 14:01:19,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:01:19,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 14:01:19,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 14:01:19,203 INFO L87 Difference]: Start difference. First operand 6489 states and 9133 transitions. Second operand 5 states. [2020-10-29 14:01:21,585 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-29 14:01:22,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:01:22,824 INFO L93 Difference]: Finished difference Result 18909 states and 26481 transitions. [2020-10-29 14:01:22,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 14:01:22,827 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 159 [2020-10-29 14:01:22,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:01:22,879 INFO L225 Difference]: With dead ends: 18909 [2020-10-29 14:01:22,879 INFO L226 Difference]: Without dead ends: 12465 [2020-10-29 14:01:22,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 14:01:22,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12465 states. [2020-10-29 14:01:23,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12465 to 12462. [2020-10-29 14:01:23,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12462 states. [2020-10-29 14:01:23,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12462 states to 12462 states and 17250 transitions. [2020-10-29 14:01:23,757 INFO L78 Accepts]: Start accepts. Automaton has 12462 states and 17250 transitions. Word has length 159 [2020-10-29 14:01:23,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:01:23,757 INFO L481 AbstractCegarLoop]: Abstraction has 12462 states and 17250 transitions. [2020-10-29 14:01:23,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 14:01:23,757 INFO L276 IsEmpty]: Start isEmpty. Operand 12462 states and 17250 transitions. [2020-10-29 14:01:23,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-29 14:01:23,776 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:01:23,777 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:01:23,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 14:01:23,777 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:01:23,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:01:23,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1595286210, now seen corresponding path program 1 times [2020-10-29 14:01:23,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:01:23,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728462203] [2020-10-29 14:01:23,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:01:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:01:23,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:23,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:23,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:24,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:24,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:24,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:28,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:01:28,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-29 14:01:28,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 14:01:28,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 14:01:28,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:01:28,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:01:28,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 14:01:28,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-29 14:01:28,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 14:01:28,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:01:29,254 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 14:01:29,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:01:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:01:29,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:29,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:01:29,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:01:29,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:01:29,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 14:01:29,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:01:29,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:01:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:01:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:01:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:01:29,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:01:29,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:01:29,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728462203] [2020-10-29 14:01:29,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:01:29,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 14:01:29,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741421189] [2020-10-29 14:01:29,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 14:01:29,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:01:29,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 14:01:29,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 14:01:29,314 INFO L87 Difference]: Start difference. First operand 12462 states and 17250 transitions. Second operand 5 states. [2020-10-29 14:01:31,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:01:31,228 INFO L93 Difference]: Finished difference Result 20757 states and 28864 transitions. [2020-10-29 14:01:31,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 14:01:31,228 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2020-10-29 14:01:31,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:01:31,249 INFO L225 Difference]: With dead ends: 20757 [2020-10-29 14:01:31,249 INFO L226 Difference]: Without dead ends: 8934 [2020-10-29 14:01:31,271 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 14:01:31,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8934 states. [2020-10-29 14:01:31,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8934 to 8922. [2020-10-29 14:01:31,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8922 states. [2020-10-29 14:01:31,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8922 states to 8922 states and 12378 transitions. [2020-10-29 14:01:31,830 INFO L78 Accepts]: Start accepts. Automaton has 8922 states and 12378 transitions. Word has length 160 [2020-10-29 14:01:31,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:01:31,831 INFO L481 AbstractCegarLoop]: Abstraction has 8922 states and 12378 transitions. [2020-10-29 14:01:31,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 14:01:31,831 INFO L276 IsEmpty]: Start isEmpty. Operand 8922 states and 12378 transitions. [2020-10-29 14:01:31,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-29 14:01:31,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:01:31,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:01:31,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 14:01:31,846 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:01:31,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:01:31,847 INFO L82 PathProgramCache]: Analyzing trace with hash 300271467, now seen corresponding path program 1 times [2020-10-29 14:01:31,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:01:31,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630498026] [2020-10-29 14:01:31,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:01:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:01:31,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:31,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:31,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:31,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:32,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:32,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:32,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:32,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:36,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:01:36,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-29 14:01:36,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 14:01:36,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-29 14:01:36,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:01:36,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:01:36,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:01:36,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-29 14:01:36,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 14:01:36,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:01:37,336 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 14:01:37,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:01:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:01:37,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:37,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:01:37,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:01:37,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:01:37,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 14:01:37,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:01:37,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:01:37,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:01:37,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:01:37,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:01:37,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:01:37,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:01:37,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630498026] [2020-10-29 14:01:37,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:01:37,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 14:01:37,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749402751] [2020-10-29 14:01:37,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 14:01:37,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:01:37,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 14:01:37,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 14:01:37,397 INFO L87 Difference]: Start difference. First operand 8922 states and 12378 transitions. Second operand 4 states. [2020-10-29 14:01:40,079 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-29 14:01:41,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:01:41,320 INFO L93 Difference]: Finished difference Result 24356 states and 34058 transitions. [2020-10-29 14:01:41,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 14:01:41,321 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 164 [2020-10-29 14:01:41,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:01:41,358 INFO L225 Difference]: With dead ends: 24356 [2020-10-29 14:01:41,359 INFO L226 Difference]: Without dead ends: 16825 [2020-10-29 14:01:41,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 14:01:41,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16825 states. [2020-10-29 14:01:42,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16825 to 16822. [2020-10-29 14:01:42,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16822 states. [2020-10-29 14:01:42,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16822 states to 16822 states and 23190 transitions. [2020-10-29 14:01:42,350 INFO L78 Accepts]: Start accepts. Automaton has 16822 states and 23190 transitions. Word has length 164 [2020-10-29 14:01:42,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:01:42,350 INFO L481 AbstractCegarLoop]: Abstraction has 16822 states and 23190 transitions. [2020-10-29 14:01:42,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 14:01:42,350 INFO L276 IsEmpty]: Start isEmpty. Operand 16822 states and 23190 transitions. [2020-10-29 14:01:42,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-29 14:01:42,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:01:42,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:01:42,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 14:01:42,381 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:01:42,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:01:42,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1207380434, now seen corresponding path program 1 times [2020-10-29 14:01:42,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:01:42,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [142247752] [2020-10-29 14:01:42,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:01:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:01:42,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:42,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:42,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:42,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:42,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:42,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:47,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:01:47,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-29 14:01:47,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 14:01:47,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-29 14:01:47,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:01:47,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:01:47,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 14:01:47,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 14:01:47,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 14:01:47,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:01:47,940 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 14:01:47,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:01:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:01:47,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:47,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:01:47,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:01:47,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:01:47,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:01:47,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:01:47,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:01:47,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:01:47,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:01:47,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:01:47,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:01:47,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:01:47,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [142247752] [2020-10-29 14:01:47,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:01:47,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 14:01:47,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755356248] [2020-10-29 14:01:47,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 14:01:47,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:01:47,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 14:01:47,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 14:01:47,986 INFO L87 Difference]: Start difference. First operand 16822 states and 23190 transitions. Second operand 5 states. [2020-10-29 14:01:50,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:01:50,048 INFO L93 Difference]: Finished difference Result 27216 states and 37671 transitions. [2020-10-29 14:01:50,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 14:01:50,049 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 164 [2020-10-29 14:01:50,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:01:50,078 INFO L225 Difference]: With dead ends: 27216 [2020-10-29 14:01:50,078 INFO L226 Difference]: Without dead ends: 11305 [2020-10-29 14:01:50,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 14:01:50,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11305 states. [2020-10-29 14:01:50,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11305 to 11300. [2020-10-29 14:01:50,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11300 states. [2020-10-29 14:01:50,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11300 states to 11300 states and 15555 transitions. [2020-10-29 14:01:50,943 INFO L78 Accepts]: Start accepts. Automaton has 11300 states and 15555 transitions. Word has length 164 [2020-10-29 14:01:50,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:01:50,944 INFO L481 AbstractCegarLoop]: Abstraction has 11300 states and 15555 transitions. [2020-10-29 14:01:50,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 14:01:50,944 INFO L276 IsEmpty]: Start isEmpty. Operand 11300 states and 15555 transitions. [2020-10-29 14:01:50,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-29 14:01:50,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:01:50,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:01:50,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 14:01:50,961 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:01:50,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:01:50,961 INFO L82 PathProgramCache]: Analyzing trace with hash -603815930, now seen corresponding path program 1 times [2020-10-29 14:01:50,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:01:50,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980219089] [2020-10-29 14:01:50,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:01:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:01:50,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:51,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:51,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:51,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:51,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:51,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:51,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:55,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:01:55,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-29 14:01:55,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 14:01:55,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 14:01:55,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:01:55,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:01:55,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 14:01:55,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 14:01:55,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-29 14:01:55,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:01:56,532 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 14:01:56,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:01:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:01:56,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:01:56,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:01:56,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:01:56,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:01:56,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 14:01:56,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:01:56,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:01:56,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:01:56,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:01:56,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 14:01:56,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:01:56,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:01:56,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980219089] [2020-10-29 14:01:56,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:01:56,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 14:01:56,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201456480] [2020-10-29 14:01:56,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 14:01:56,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:01:56,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 14:01:56,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-29 14:01:56,602 INFO L87 Difference]: Start difference. First operand 11300 states and 15555 transitions. Second operand 9 states. [2020-10-29 14:01:57,095 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-29 14:01:59,929 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-10-29 14:02:00,466 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-29 14:02:02,303 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-29 14:02:02,838 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-29 14:02:03,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:02:03,473 INFO L93 Difference]: Finished difference Result 41138 states and 57935 transitions. [2020-10-29 14:02:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 14:02:03,474 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-10-29 14:02:03,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:02:03,534 INFO L225 Difference]: With dead ends: 41138 [2020-10-29 14:02:03,534 INFO L226 Difference]: Without dead ends: 31301 [2020-10-29 14:02:03,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2020-10-29 14:02:03,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31301 states. [2020-10-29 14:02:04,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31301 to 17812. [2020-10-29 14:02:04,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17812 states. [2020-10-29 14:02:04,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17812 states to 17812 states and 24407 transitions. [2020-10-29 14:02:04,950 INFO L78 Accepts]: Start accepts. Automaton has 17812 states and 24407 transitions. Word has length 167 [2020-10-29 14:02:04,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:02:04,950 INFO L481 AbstractCegarLoop]: Abstraction has 17812 states and 24407 transitions. [2020-10-29 14:02:04,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 14:02:04,950 INFO L276 IsEmpty]: Start isEmpty. Operand 17812 states and 24407 transitions. [2020-10-29 14:02:04,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-29 14:02:04,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:02:04,966 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:02:04,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 14:02:04,966 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:02:04,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:02:04,967 INFO L82 PathProgramCache]: Analyzing trace with hash 2099535110, now seen corresponding path program 1 times [2020-10-29 14:02:04,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:02:04,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [893059697] [2020-10-29 14:02:04,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:02:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:02:05,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:05,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:05,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:05,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:05,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:05,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:07,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:07,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:07,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:07,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:10,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:02:10,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-29 14:02:10,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-29 14:02:10,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-29 14:02:10,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:02:10,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:02:10,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 14:02:10,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 14:02:10,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 14:02:10,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:02:10,525 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 14:02:10,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:02:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:02:10,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:10,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:02:10,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:02:10,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:02:10,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:02:10,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:02:10,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:02:10,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:02:10,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:02:10,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:02:10,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:02:10,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:02:10,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [893059697] [2020-10-29 14:02:10,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:02:10,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 14:02:10,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247414193] [2020-10-29 14:02:10,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 14:02:10,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:02:10,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 14:02:10,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 14:02:10,614 INFO L87 Difference]: Start difference. First operand 17812 states and 24407 transitions. Second operand 5 states. [2020-10-29 14:02:11,013 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-29 14:02:15,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:02:15,493 INFO L93 Difference]: Finished difference Result 33042 states and 45293 transitions. [2020-10-29 14:02:15,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 14:02:15,494 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-10-29 14:02:15,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:02:15,523 INFO L225 Difference]: With dead ends: 33042 [2020-10-29 14:02:15,523 INFO L226 Difference]: Without dead ends: 17830 [2020-10-29 14:02:15,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 14:02:15,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17830 states. [2020-10-29 14:02:16,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17830 to 17816. [2020-10-29 14:02:16,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17816 states. [2020-10-29 14:02:16,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17816 states to 17816 states and 24344 transitions. [2020-10-29 14:02:16,859 INFO L78 Accepts]: Start accepts. Automaton has 17816 states and 24344 transitions. Word has length 167 [2020-10-29 14:02:16,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:02:16,859 INFO L481 AbstractCegarLoop]: Abstraction has 17816 states and 24344 transitions. [2020-10-29 14:02:16,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 14:02:16,859 INFO L276 IsEmpty]: Start isEmpty. Operand 17816 states and 24344 transitions. [2020-10-29 14:02:16,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-29 14:02:16,872 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:02:16,872 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:02:16,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 14:02:16,873 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:02:16,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:02:16,873 INFO L82 PathProgramCache]: Analyzing trace with hash 815210719, now seen corresponding path program 1 times [2020-10-29 14:02:16,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:02:16,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160093437] [2020-10-29 14:02:16,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:02:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:02:16,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:16,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:16,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:17,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:17,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:17,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:17,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:17,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:17,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:17,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:18,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:19,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:21,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:02:21,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 14:02:21,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-29 14:02:21,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 14:02:21,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:02:21,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:02:21,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:02:21,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 14:02:21,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 14:02:21,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:02:22,347 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 14:02:22,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:02:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:02:22,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:22,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:02:22,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:02:22,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:02:22,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 14:02:22,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:02:22,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:02:22,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:02:22,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:02:22,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:02:22,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:02:22,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:02:22,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160093437] [2020-10-29 14:02:22,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:02:22,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 14:02:22,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595811480] [2020-10-29 14:02:22,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 14:02:22,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:02:22,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 14:02:22,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 14:02:22,427 INFO L87 Difference]: Start difference. First operand 17816 states and 24344 transitions. Second operand 4 states. [2020-10-29 14:02:22,886 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-29 14:02:27,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:02:27,091 INFO L93 Difference]: Finished difference Result 30632 states and 41938 transitions. [2020-10-29 14:02:27,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 14:02:27,092 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 168 [2020-10-29 14:02:27,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:02:27,112 INFO L225 Difference]: With dead ends: 30632 [2020-10-29 14:02:27,113 INFO L226 Difference]: Without dead ends: 18015 [2020-10-29 14:02:27,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 14:02:27,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18015 states. [2020-10-29 14:02:28,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18015 to 18008. [2020-10-29 14:02:28,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18008 states. [2020-10-29 14:02:28,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18008 states to 18008 states and 24473 transitions. [2020-10-29 14:02:28,317 INFO L78 Accepts]: Start accepts. Automaton has 18008 states and 24473 transitions. Word has length 168 [2020-10-29 14:02:28,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:02:28,317 INFO L481 AbstractCegarLoop]: Abstraction has 18008 states and 24473 transitions. [2020-10-29 14:02:28,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 14:02:28,317 INFO L276 IsEmpty]: Start isEmpty. Operand 18008 states and 24473 transitions. [2020-10-29 14:02:28,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-29 14:02:28,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:02:28,332 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:02:28,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 14:02:28,332 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:02:28,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:02:28,333 INFO L82 PathProgramCache]: Analyzing trace with hash -825549156, now seen corresponding path program 1 times [2020-10-29 14:02:28,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:02:28,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1957988340] [2020-10-29 14:02:28,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:02:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:02:28,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:28,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:28,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:28,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:28,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:28,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:29,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:30,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:30,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:30,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:33,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:02:33,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 14:02:33,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-29 14:02:33,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 14:02:33,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:02:33,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:02:33,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 14:02:33,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 14:02:33,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-29 14:02:33,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:02:33,889 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 14:02:33,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:02:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:02:33,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:33,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:02:33,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:02:33,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:02:33,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 14:02:33,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:02:33,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:02:33,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:02:33,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:02:33,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 14:02:33,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:02:33,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:02:33,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1957988340] [2020-10-29 14:02:33,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:02:33,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 14:02:33,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751199547] [2020-10-29 14:02:33,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 14:02:33,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:02:33,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 14:02:33,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-29 14:02:33,979 INFO L87 Difference]: Start difference. First operand 18008 states and 24473 transitions. Second operand 9 states. [2020-10-29 14:02:34,477 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-29 14:02:37,556 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-10-29 14:02:38,045 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-29 14:02:40,145 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-29 14:02:40,765 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-29 14:02:42,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:02:42,399 INFO L93 Difference]: Finished difference Result 60290 states and 83968 transitions. [2020-10-29 14:02:42,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 14:02:42,400 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 168 [2020-10-29 14:02:42,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:02:42,448 INFO L225 Difference]: With dead ends: 60290 [2020-10-29 14:02:42,448 INFO L226 Difference]: Without dead ends: 44707 [2020-10-29 14:02:42,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2020-10-29 14:02:42,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44707 states. [2020-10-29 14:02:44,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44707 to 22198. [2020-10-29 14:02:44,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22198 states. [2020-10-29 14:02:44,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22198 states to 22198 states and 29990 transitions. [2020-10-29 14:02:44,426 INFO L78 Accepts]: Start accepts. Automaton has 22198 states and 29990 transitions. Word has length 168 [2020-10-29 14:02:44,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:02:44,427 INFO L481 AbstractCegarLoop]: Abstraction has 22198 states and 29990 transitions. [2020-10-29 14:02:44,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 14:02:44,427 INFO L276 IsEmpty]: Start isEmpty. Operand 22198 states and 29990 transitions. [2020-10-29 14:02:44,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-29 14:02:44,440 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:02:44,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:02:44,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 14:02:44,441 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:02:44,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:02:44,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1968676353, now seen corresponding path program 1 times [2020-10-29 14:02:44,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:02:44,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615420967] [2020-10-29 14:02:44,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:02:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:02:44,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:44,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:44,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:44,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:44,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:44,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:44,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:46,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:47,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:49,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:02:49,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 14:02:49,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 14:02:49,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 14:02:49,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:02:49,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:02:49,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 14:02:49,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 14:02:49,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-29 14:02:49,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:02:49,988 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 14:02:49,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:02:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:02:49,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:50,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:02:50,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:02:50,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:02:50,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 14:02:50,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:02:50,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:02:50,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:02:50,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:02:50,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:02:50,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:02:50,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:02:50,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615420967] [2020-10-29 14:02:50,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:02:50,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 14:02:50,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529571908] [2020-10-29 14:02:50,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 14:02:50,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:02:50,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 14:02:50,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 14:02:50,072 INFO L87 Difference]: Start difference. First operand 22198 states and 29990 transitions. Second operand 5 states. [2020-10-29 14:02:53,681 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-29 14:02:56,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:02:56,024 INFO L93 Difference]: Finished difference Result 43660 states and 59101 transitions. [2020-10-29 14:02:56,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 14:02:56,024 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-10-29 14:02:56,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:02:56,045 INFO L225 Difference]: With dead ends: 43660 [2020-10-29 14:02:56,046 INFO L226 Difference]: Without dead ends: 22661 [2020-10-29 14:02:56,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 14:02:56,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22661 states. [2020-10-29 14:02:58,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22661 to 22658. [2020-10-29 14:02:58,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22658 states. [2020-10-29 14:02:58,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22658 states to 22658 states and 30471 transitions. [2020-10-29 14:02:58,221 INFO L78 Accepts]: Start accepts. Automaton has 22658 states and 30471 transitions. Word has length 168 [2020-10-29 14:02:58,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:02:58,221 INFO L481 AbstractCegarLoop]: Abstraction has 22658 states and 30471 transitions. [2020-10-29 14:02:58,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 14:02:58,221 INFO L276 IsEmpty]: Start isEmpty. Operand 22658 states and 30471 transitions. [2020-10-29 14:02:58,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-29 14:02:58,234 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:02:58,234 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:02:58,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 14:02:58,235 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:02:58,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:02:58,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1110248098, now seen corresponding path program 1 times [2020-10-29 14:02:58,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:02:58,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1574834294] [2020-10-29 14:02:58,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:02:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:02:58,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:58,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:58,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:58,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:02:58,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:03,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:03:03,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-29 14:03:03,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 14:03:03,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 14:03:03,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:03:03,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:03:03,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 14:03:03,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 14:03:03,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 14:03:03,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:03:03,726 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 14:03:03,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:03:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:03:03,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:03,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:03:03,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:03:03,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:03:03,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 14:03:03,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:03:03,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:03:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:03:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:03:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:03:03,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:03:03,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:03:03,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1574834294] [2020-10-29 14:03:03,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:03:03,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 14:03:03,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417769827] [2020-10-29 14:03:03,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 14:03:03,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:03:03,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 14:03:03,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 14:03:03,840 INFO L87 Difference]: Start difference. First operand 22658 states and 30471 transitions. Second operand 5 states. [2020-10-29 14:03:07,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:03:07,129 INFO L93 Difference]: Finished difference Result 40405 states and 54320 transitions. [2020-10-29 14:03:07,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 14:03:07,130 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 169 [2020-10-29 14:03:07,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:03:07,148 INFO L225 Difference]: With dead ends: 40405 [2020-10-29 14:03:07,148 INFO L226 Difference]: Without dead ends: 17973 [2020-10-29 14:03:07,162 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 14:03:07,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17973 states. [2020-10-29 14:03:08,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17973 to 17972. [2020-10-29 14:03:08,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17972 states. [2020-10-29 14:03:08,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17972 states to 17972 states and 24093 transitions. [2020-10-29 14:03:08,745 INFO L78 Accepts]: Start accepts. Automaton has 17972 states and 24093 transitions. Word has length 169 [2020-10-29 14:03:08,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:03:08,745 INFO L481 AbstractCegarLoop]: Abstraction has 17972 states and 24093 transitions. [2020-10-29 14:03:08,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 14:03:08,745 INFO L276 IsEmpty]: Start isEmpty. Operand 17972 states and 24093 transitions. [2020-10-29 14:03:08,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-29 14:03:08,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:03:08,757 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:03:08,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 14:03:08,757 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:03:08,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:03:08,758 INFO L82 PathProgramCache]: Analyzing trace with hash -967043810, now seen corresponding path program 1 times [2020-10-29 14:03:08,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:03:08,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490620220] [2020-10-29 14:03:08,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:03:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:03:08,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:08,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:08,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:08,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:08,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:08,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:08,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:09,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:09,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:13,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:03:13,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-29 14:03:13,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 14:03:13,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-29 14:03:13,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:03:13,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:03:13,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 14:03:13,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 14:03:13,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-29 14:03:13,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:03:14,279 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 14:03:14,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:03:14,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:03:14,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:14,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:03:14,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:03:14,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:03:14,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:03:14,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:03:14,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:03:14,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:03:14,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:03:14,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:03:14,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:03:14,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:03:14,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490620220] [2020-10-29 14:03:14,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:03:14,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 14:03:14,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58357718] [2020-10-29 14:03:14,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 14:03:14,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:03:14,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 14:03:14,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 14:03:14,339 INFO L87 Difference]: Start difference. First operand 17972 states and 24093 transitions. Second operand 5 states. [2020-10-29 14:03:14,756 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-29 14:03:19,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:03:19,379 INFO L93 Difference]: Finished difference Result 30932 states and 41450 transitions. [2020-10-29 14:03:19,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 14:03:19,380 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 171 [2020-10-29 14:03:19,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:03:19,399 INFO L225 Difference]: With dead ends: 30932 [2020-10-29 14:03:19,399 INFO L226 Difference]: Without dead ends: 17950 [2020-10-29 14:03:19,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 14:03:19,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17950 states. [2020-10-29 14:03:20,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17950 to 17947. [2020-10-29 14:03:20,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17947 states. [2020-10-29 14:03:21,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17947 states to 17947 states and 23955 transitions. [2020-10-29 14:03:21,021 INFO L78 Accepts]: Start accepts. Automaton has 17947 states and 23955 transitions. Word has length 171 [2020-10-29 14:03:21,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:03:21,022 INFO L481 AbstractCegarLoop]: Abstraction has 17947 states and 23955 transitions. [2020-10-29 14:03:21,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 14:03:21,022 INFO L276 IsEmpty]: Start isEmpty. Operand 17947 states and 23955 transitions. [2020-10-29 14:03:21,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-29 14:03:21,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:03:21,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:03:21,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 14:03:21,035 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:03:21,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:03:21,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1188148966, now seen corresponding path program 1 times [2020-10-29 14:03:21,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:03:21,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060630686] [2020-10-29 14:03:21,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:03:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:03:21,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:21,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:21,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:21,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:21,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:26,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:03:26,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 14:03:26,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 14:03:26,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 14:03:26,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:03:26,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:03:26,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 14:03:26,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 14:03:26,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-10-29 14:03:26,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:03:26,572 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 14:03:26,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:03:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:03:26,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:26,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:03:26,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:03:26,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:03:26,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 14:03:26,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:03:26,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:03:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:03:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:03:26,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 14:03:26,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:03:26,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:03:26,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060630686] [2020-10-29 14:03:26,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:03:26,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 14:03:26,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923047179] [2020-10-29 14:03:26,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 14:03:26,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:03:26,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 14:03:26,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-29 14:03:26,669 INFO L87 Difference]: Start difference. First operand 17947 states and 23955 transitions. Second operand 9 states. [2020-10-29 14:03:27,135 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-29 14:03:30,302 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-10-29 14:03:30,775 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-29 14:03:32,939 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-29 14:03:33,466 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-29 14:03:35,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:03:35,259 INFO L93 Difference]: Finished difference Result 55595 states and 75336 transitions. [2020-10-29 14:03:35,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 14:03:35,260 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-10-29 14:03:35,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:03:35,309 INFO L225 Difference]: With dead ends: 55595 [2020-10-29 14:03:35,309 INFO L226 Difference]: Without dead ends: 39302 [2020-10-29 14:03:35,331 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=154, Invalid=308, Unknown=0, NotChecked=0, Total=462 [2020-10-29 14:03:35,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39302 states. [2020-10-29 14:03:37,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39302 to 22879. [2020-10-29 14:03:37,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22879 states. [2020-10-29 14:03:37,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22879 states to 22879 states and 30213 transitions. [2020-10-29 14:03:37,902 INFO L78 Accepts]: Start accepts. Automaton has 22879 states and 30213 transitions. Word has length 172 [2020-10-29 14:03:37,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:03:37,903 INFO L481 AbstractCegarLoop]: Abstraction has 22879 states and 30213 transitions. [2020-10-29 14:03:37,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 14:03:37,903 INFO L276 IsEmpty]: Start isEmpty. Operand 22879 states and 30213 transitions. [2020-10-29 14:03:37,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-29 14:03:37,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:03:37,915 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:03:37,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 14:03:37,915 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:03:37,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:03:37,916 INFO L82 PathProgramCache]: Analyzing trace with hash -274305609, now seen corresponding path program 1 times [2020-10-29 14:03:37,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:03:37,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143774113] [2020-10-29 14:03:37,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:03:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:03:37,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:37,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:38,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:38,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:38,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:39,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:39,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:42,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:03:42,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 14:03:42,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 14:03:42,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-29 14:03:42,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:03:42,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:03:42,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 14:03:42,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-29 14:03:42,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-29 14:03:42,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:03:43,385 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-29 14:03:43,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:03:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:03:43,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:43,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:03:43,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:03:43,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:03:43,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 14:03:43,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:03:43,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:03:43,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:03:43,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:03:43,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:03:43,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:03:43,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 14:03:43,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143774113] [2020-10-29 14:03:43,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:03:43,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 14:03:43,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951197528] [2020-10-29 14:03:43,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 14:03:43,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:03:43,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 14:03:43,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 14:03:43,556 INFO L87 Difference]: Start difference. First operand 22879 states and 30213 transitions. Second operand 5 states. [2020-10-29 14:03:43,975 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-29 14:03:47,515 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-29 14:03:52,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:03:52,750 INFO L93 Difference]: Finished difference Result 65150 states and 90445 transitions. [2020-10-29 14:03:52,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 14:03:52,750 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 172 [2020-10-29 14:03:52,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:03:52,824 INFO L225 Difference]: With dead ends: 65150 [2020-10-29 14:03:52,824 INFO L226 Difference]: Without dead ends: 54717 [2020-10-29 14:03:52,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 14:03:52,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54717 states. [2020-10-29 14:03:58,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54717 to 54711. [2020-10-29 14:03:58,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54711 states. [2020-10-29 14:03:58,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54711 states to 54711 states and 74297 transitions. [2020-10-29 14:03:58,997 INFO L78 Accepts]: Start accepts. Automaton has 54711 states and 74297 transitions. Word has length 172 [2020-10-29 14:03:58,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:03:58,998 INFO L481 AbstractCegarLoop]: Abstraction has 54711 states and 74297 transitions. [2020-10-29 14:03:58,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 14:03:58,998 INFO L276 IsEmpty]: Start isEmpty. Operand 54711 states and 74297 transitions. [2020-10-29 14:03:59,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-29 14:03:59,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:03:59,025 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:03:59,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 14:03:59,025 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:03:59,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:03:59,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1675791733, now seen corresponding path program 1 times [2020-10-29 14:03:59,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:03:59,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881149518] [2020-10-29 14:03:59,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:03:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:03:59,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:59,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:59,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:59,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:03:59,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:04:04,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:04:04,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 14:04:04,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 14:04:04,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 14:04:04,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:04:04,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:04:04,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 14:04:04,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 14:04:04,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-29 14:04:04,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0