/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/array-tiling/pr3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:10:54,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:10:54,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:10:54,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:10:54,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:10:54,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:10:54,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:10:54,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:10:54,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:10:54,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:10:54,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:10:54,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:10:54,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:10:54,891 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:10:54,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:10:54,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:10:54,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:10:54,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:10:54,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:10:54,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:10:54,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:10:54,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:10:54,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:10:54,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:10:54,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:10:54,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:10:54,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:10:54,940 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:10:54,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:10:54,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:10:54,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:10:54,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:10:54,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:10:54,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:10:54,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:10:54,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:10:54,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:10:54,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:10:54,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:10:54,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:10:54,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:10:54,961 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 04:10:55,014 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:10:55,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:10:55,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:10:55,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:10:55,021 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:10:55,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:10:55,021 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:10:55,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:10:55,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:10:55,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:10:55,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:10:55,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:10:55,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:10:55,024 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:10:55,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:10:55,024 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:10:55,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:10:55,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:10:55,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:10:55,025 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:10:55,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:10:55,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:10:55,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:10:55,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:10:55,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:10:55,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:10:55,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:10:55,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:10:55,028 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:10:55,028 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:10:55,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:10:55,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:10:55,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:10:55,594 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:10:55,595 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:10:55,596 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/pr3.c [2020-10-29 04:10:55,691 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b7674af0/ac213b9bb600410a95468a5207e050b6/FLAG9114aadef [2020-10-29 04:10:56,217 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:10:56,218 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-tiling/pr3.c [2020-10-29 04:10:56,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b7674af0/ac213b9bb600410a95468a5207e050b6/FLAG9114aadef [2020-10-29 04:10:56,600 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b7674af0/ac213b9bb600410a95468a5207e050b6 [2020-10-29 04:10:56,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:10:56,612 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:10:56,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:10:56,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:10:56,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:10:56,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:10:56" (1/1) ... [2020-10-29 04:10:56,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fd93bc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:10:56, skipping insertion in model container [2020-10-29 04:10:56,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:10:56" (1/1) ... [2020-10-29 04:10:56,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:10:56,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:10:56,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:10:56,858 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:10:56,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:10:56,901 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:10:56,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:10:56 WrapperNode [2020-10-29 04:10:56,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:10:56,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:10:56,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:10:56,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:10:56,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:10:56" (1/1) ... [2020-10-29 04:10:56,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:10:56" (1/1) ... [2020-10-29 04:10:56,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:10:56" (1/1) ... [2020-10-29 04:10:56,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:10:56" (1/1) ... [2020-10-29 04:10:56,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:10:56" (1/1) ... [2020-10-29 04:10:56,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:10:56" (1/1) ... [2020-10-29 04:10:56,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:10:56" (1/1) ... [2020-10-29 04:10:56,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:10:56,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:10:56,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:10:56,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:10:56,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:10:56" (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 04:10:57,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:10:57,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:10:57,028 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:10:57,028 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 04:10:57,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 04:10:57,028 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:10:57,028 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:10:57,028 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:10:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:10:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:10:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 04:10:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 04:10:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 04:10:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:10:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:10:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:10:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:10:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:10:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:10:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:10:57,408 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:10:57,409 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-29 04:10:57,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:10:57 BoogieIcfgContainer [2020-10-29 04:10:57,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:10:57,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:10:57,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:10:57,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:10:57,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:10:56" (1/3) ... [2020-10-29 04:10:57,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4755c870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:10:57, skipping insertion in model container [2020-10-29 04:10:57,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:10:56" (2/3) ... [2020-10-29 04:10:57,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4755c870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:10:57, skipping insertion in model container [2020-10-29 04:10:57,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:10:57" (3/3) ... [2020-10-29 04:10:57,421 INFO L111 eAbstractionObserver]: Analyzing ICFG pr3.c [2020-10-29 04:10:57,433 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:10:57,438 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:10:57,454 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:10:57,491 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:10:57,492 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:10:57,492 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:10:57,492 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:10:57,492 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:10:57,492 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:10:57,492 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:10:57,493 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:10:57,528 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-10-29 04:10:57,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-29 04:10:57,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:10:57,537 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] [2020-10-29 04:10:57,537 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:10:57,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:10:57,544 INFO L82 PathProgramCache]: Analyzing trace with hash -71068241, now seen corresponding path program 1 times [2020-10-29 04:10:57,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:10:57,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079648277] [2020-10-29 04:10:57,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:10:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:57,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:57,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:58,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:58,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-29 04:10:58,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:10:58,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-10-29 04:10:58,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:58,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:58,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:58,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-29 04:10:58,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:58,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 04:10:58,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:10:58,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:58,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:58,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:58,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:10:58,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:58,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 04:10:58,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:58,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:58,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:58,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:58,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:58,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:58,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:10:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:58,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:58,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:58,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:58,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:58,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:10:58,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 04:10:58,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:58,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:58,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:58,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:58,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:58,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:58,304 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 04:10:58,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1079648277] [2020-10-29 04:10:58,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:10:58,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 04:10:58,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816026937] [2020-10-29 04:10:58,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-29 04:10:58,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:10:58,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-29 04:10:58,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-29 04:10:58,335 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 3 states. [2020-10-29 04:10:58,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:10:58,477 INFO L93 Difference]: Finished difference Result 68 states and 89 transitions. [2020-10-29 04:10:58,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-29 04:10:58,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-10-29 04:10:58,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:10:58,487 INFO L225 Difference]: With dead ends: 68 [2020-10-29 04:10:58,488 INFO L226 Difference]: Without dead ends: 32 [2020-10-29 04:10:58,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-29 04:10:58,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-29 04:10:58,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-29 04:10:58,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-29 04:10:58,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2020-10-29 04:10:58,541 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 23 [2020-10-29 04:10:58,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:10:58,541 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2020-10-29 04:10:58,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-29 04:10:58,542 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2020-10-29 04:10:58,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-29 04:10:58,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:10:58,543 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] [2020-10-29 04:10:58,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:10:58,544 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:10:58,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:10:58,544 INFO L82 PathProgramCache]: Analyzing trace with hash -2036094566, now seen corresponding path program 1 times [2020-10-29 04:10:58,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:10:58,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885899320] [2020-10-29 04:10:58,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:10:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:58,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:58,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:58,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:59,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:59,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:59,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-29 04:10:59,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:10:59,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1099 [2020-10-29 04:10:59,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:59,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:59,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:10:59,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:10:59,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 04:10:59,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:00,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:00,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:00,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:00,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:00,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:00,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:00,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:11:00,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:00,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:00,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:00,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:00,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:00,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:00,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:00,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:00,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:00,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:00,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:00,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:11:00,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:00,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:00,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:00,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:00,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:00,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:00,049 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 04:11:00,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885899320] [2020-10-29 04:11:00,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:11:00,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 04:11:00,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688363322] [2020-10-29 04:11:00,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 04:11:00,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:00,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 04:11:00,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:11:00,053 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand 6 states. [2020-10-29 04:11:00,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:00,300 INFO L93 Difference]: Finished difference Result 55 states and 67 transitions. [2020-10-29 04:11:00,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 04:11:00,301 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-10-29 04:11:00,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:00,304 INFO L225 Difference]: With dead ends: 55 [2020-10-29 04:11:00,304 INFO L226 Difference]: Without dead ends: 42 [2020-10-29 04:11:00,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:11:00,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-29 04:11:00,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 33. [2020-10-29 04:11:00,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-29 04:11:00,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2020-10-29 04:11:00,320 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 23 [2020-10-29 04:11:00,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:00,321 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2020-10-29 04:11:00,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 04:11:00,321 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2020-10-29 04:11:00,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-29 04:11:00,322 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:00,322 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] [2020-10-29 04:11:00,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:11:00,323 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:00,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:00,323 INFO L82 PathProgramCache]: Analyzing trace with hash 556095968, now seen corresponding path program 1 times [2020-10-29 04:11:00,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:00,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [117259042] [2020-10-29 04:11:00,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:00,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:00,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:00,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:00,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:00,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 04:11:00,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:11:00,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 513 [2020-10-29 04:11:00,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:00,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 04:11:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:11:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 04:11:00,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:00,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:00,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:00,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:00,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:00,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:00,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:11:00,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:00,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:00,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:00,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:00,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:00,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:00,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:00,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:00,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:00,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:00,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:00,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:11:00,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:00,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:00,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:00,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:00,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:00,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:00,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:11:00,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [117259042] [2020-10-29 04:11:00,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:11:00,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 04:11:00,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723037992] [2020-10-29 04:11:00,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:11:00,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:00,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:11:00,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:11:00,945 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 5 states. [2020-10-29 04:11:01,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:01,097 INFO L93 Difference]: Finished difference Result 62 states and 78 transitions. [2020-10-29 04:11:01,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:11:01,098 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-29 04:11:01,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:01,099 INFO L225 Difference]: With dead ends: 62 [2020-10-29 04:11:01,099 INFO L226 Difference]: Without dead ends: 44 [2020-10-29 04:11:01,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:11:01,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-29 04:11:01,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2020-10-29 04:11:01,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-29 04:11:01,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2020-10-29 04:11:01,111 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 28 [2020-10-29 04:11:01,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:01,111 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2020-10-29 04:11:01,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:11:01,111 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2020-10-29 04:11:01,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-29 04:11:01,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:01,114 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] [2020-10-29 04:11:01,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:11:01,114 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:01,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:01,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1257160546, now seen corresponding path program 1 times [2020-10-29 04:11:01,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:01,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1003998858] [2020-10-29 04:11:01,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:01,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:01,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:01,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:01,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 04:11:01,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:11:01,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-10-29 04:11:01,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:01,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:01,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 04:11:01,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:11:01,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 04:11:01,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:01,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:01,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:01,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:01,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:01,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:01,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:11:01,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:01,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:01,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:01,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:01,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:01,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:01,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:01,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:01,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:01,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:01,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:01,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:11:01,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:01,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:01,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:01,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:01,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:01,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:01,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:11:01,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1003998858] [2020-10-29 04:11:01,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:11:01,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 04:11:01,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563590883] [2020-10-29 04:11:01,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:11:01,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:01,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:11:01,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:11:01,626 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 5 states. [2020-10-29 04:11:01,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:01,830 INFO L93 Difference]: Finished difference Result 62 states and 76 transitions. [2020-10-29 04:11:01,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:11:01,831 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-29 04:11:01,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:01,832 INFO L225 Difference]: With dead ends: 62 [2020-10-29 04:11:01,832 INFO L226 Difference]: Without dead ends: 44 [2020-10-29 04:11:01,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:11:01,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-29 04:11:01,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2020-10-29 04:11:01,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-29 04:11:01,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2020-10-29 04:11:01,862 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 28 [2020-10-29 04:11:01,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:01,862 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2020-10-29 04:11:01,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:11:01,863 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2020-10-29 04:11:01,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-29 04:11:01,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:01,865 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] [2020-10-29 04:11:01,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 04:11:01,866 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:01,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:01,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1515325984, now seen corresponding path program 1 times [2020-10-29 04:11:01,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:01,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2054627569] [2020-10-29 04:11:01,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:01,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:02,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:02,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 04:11:02,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:02,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 371 [2020-10-29 04:11:02,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:02,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:02,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 04:11:02,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:11:02,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 04:11:02,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:02,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:02,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:02,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:02,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:02,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:02,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:02,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:11:02,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:02,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:02,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:02,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:02,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:02,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:02,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:02,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:02,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:02,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:02,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:02,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:02,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:02,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:02,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:02,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:02,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:02,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-29 04:11:02,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:11:02,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2054627569] [2020-10-29 04:11:02,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:02,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 04:11:02,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264659568] [2020-10-29 04:11:02,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 04:11:02,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:02,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 04:11:02,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-29 04:11:02,550 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 10 states. [2020-10-29 04:11:03,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:03,148 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2020-10-29 04:11:03,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 04:11:03,149 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2020-10-29 04:11:03,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:03,154 INFO L225 Difference]: With dead ends: 74 [2020-10-29 04:11:03,154 INFO L226 Difference]: Without dead ends: 71 [2020-10-29 04:11:03,155 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2020-10-29 04:11:03,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-29 04:11:03,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 52. [2020-10-29 04:11:03,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-29 04:11:03,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2020-10-29 04:11:03,187 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 63 transitions. Word has length 28 [2020-10-29 04:11:03,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:03,188 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 63 transitions. [2020-10-29 04:11:03,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 04:11:03,188 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2020-10-29 04:11:03,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-29 04:11:03,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:03,189 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] [2020-10-29 04:11:03,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 04:11:03,190 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:03,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:03,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1142901982, now seen corresponding path program 1 times [2020-10-29 04:11:03,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:03,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281099884] [2020-10-29 04:11:03,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:03,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:03,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:03,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 04:11:03,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:03,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-29 04:11:03,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:03,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:03,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 04:11:03,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:11:03,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 04:11:03,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:03,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:03,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:03,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:03,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:03,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:03,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:11:03,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:03,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:03,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:03,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:03,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:03,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:03,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:03,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:03,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:03,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:03,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:03,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:03,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:03,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:03,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:03,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:03,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:03,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:03,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:11:03,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281099884] [2020-10-29 04:11:03,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:03,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 04:11:03,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437456567] [2020-10-29 04:11:03,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 04:11:03,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:03,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 04:11:03,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:11:03,564 INFO L87 Difference]: Start difference. First operand 52 states and 63 transitions. Second operand 8 states. [2020-10-29 04:11:03,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:03,880 INFO L93 Difference]: Finished difference Result 92 states and 113 transitions. [2020-10-29 04:11:03,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 04:11:03,881 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-10-29 04:11:03,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:03,884 INFO L225 Difference]: With dead ends: 92 [2020-10-29 04:11:03,884 INFO L226 Difference]: Without dead ends: 75 [2020-10-29 04:11:03,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-29 04:11:03,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-29 04:11:03,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 55. [2020-10-29 04:11:03,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-29 04:11:03,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 66 transitions. [2020-10-29 04:11:03,897 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 66 transitions. Word has length 28 [2020-10-29 04:11:03,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:03,897 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 66 transitions. [2020-10-29 04:11:03,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 04:11:03,898 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 66 transitions. [2020-10-29 04:11:03,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-29 04:11:03,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:03,899 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:03,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 04:11:03,899 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:03,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:03,900 INFO L82 PathProgramCache]: Analyzing trace with hash 2084765784, now seen corresponding path program 1 times [2020-10-29 04:11:03,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:03,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128984222] [2020-10-29 04:11:03,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:03,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:03,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:03,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-29 04:11:03,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:03,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 04:11:03,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:03,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:03,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:03,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-29 04:11:03,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:03,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:04,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:04,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:04,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:04,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:04,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:04,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:11:04,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:04,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:04,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:04,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:04,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:04,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:04,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:04,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:04,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:04,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:04,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:04,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:04,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:04,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:04,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:04,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:04,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:04,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:04,069 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:11:04,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128984222] [2020-10-29 04:11:04,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:11:04,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:11:04,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731462537] [2020-10-29 04:11:04,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:11:04,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:04,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:11:04,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:11:04,072 INFO L87 Difference]: Start difference. First operand 55 states and 66 transitions. Second operand 4 states. [2020-10-29 04:11:04,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:04,193 INFO L93 Difference]: Finished difference Result 84 states and 101 transitions. [2020-10-29 04:11:04,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:11:04,194 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-10-29 04:11:04,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:04,195 INFO L225 Difference]: With dead ends: 84 [2020-10-29 04:11:04,195 INFO L226 Difference]: Without dead ends: 61 [2020-10-29 04:11:04,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:11:04,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-29 04:11:04,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 55. [2020-10-29 04:11:04,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-29 04:11:04,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 64 transitions. [2020-10-29 04:11:04,217 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 64 transitions. Word has length 33 [2020-10-29 04:11:04,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:04,217 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 64 transitions. [2020-10-29 04:11:04,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:11:04,217 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2020-10-29 04:11:04,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-29 04:11:04,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:04,221 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:04,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 04:11:04,223 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:04,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:04,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1806553436, now seen corresponding path program 1 times [2020-10-29 04:11:04,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:04,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [872600582] [2020-10-29 04:11:04,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:04,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:04,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:04,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:04,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:04,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:04,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:04,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:04,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-29 04:11:04,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 04:11:04,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 704 [2020-10-29 04:11:04,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:04,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:04,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 04:11:04,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:11:04,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 04:11:04,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:05,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:05,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:05,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:05,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:05,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:05,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 04:11:05,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:05,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:05,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:05,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:05,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:05,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:05,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:05,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:05,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:05,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:05,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 04:11:05,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:05,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:05,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:05,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:05,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:05,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:05,065 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:11:05,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [872600582] [2020-10-29 04:11:05,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:05,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:11:05,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890754957] [2020-10-29 04:11:05,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:11:05,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:05,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:11:05,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:11:05,069 INFO L87 Difference]: Start difference. First operand 55 states and 64 transitions. Second operand 5 states. [2020-10-29 04:11:05,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:05,262 INFO L93 Difference]: Finished difference Result 92 states and 110 transitions. [2020-10-29 04:11:05,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:11:05,263 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-10-29 04:11:05,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:05,265 INFO L225 Difference]: With dead ends: 92 [2020-10-29 04:11:05,265 INFO L226 Difference]: Without dead ends: 69 [2020-10-29 04:11:05,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:11:05,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-29 04:11:05,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 60. [2020-10-29 04:11:05,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-29 04:11:05,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 72 transitions. [2020-10-29 04:11:05,292 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 72 transitions. Word has length 33 [2020-10-29 04:11:05,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:05,293 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 72 transitions. [2020-10-29 04:11:05,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:11:05,293 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2020-10-29 04:11:05,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-29 04:11:05,296 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:05,296 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:05,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 04:11:05,297 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:05,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:05,298 INFO L82 PathProgramCache]: Analyzing trace with hash 785485082, now seen corresponding path program 1 times [2020-10-29 04:11:05,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:05,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662224899] [2020-10-29 04:11:05,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:05,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:05,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:05,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:05,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:05,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-29 04:11:05,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:11:05,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 377 [2020-10-29 04:11:05,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:05,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:05,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 04:11:05,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:11:05,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 04:11:05,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:05,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:05,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:05,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:05,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:05,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:05,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:05,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:05,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:05,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:05,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:05,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:05,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:05,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:05,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:05,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:05,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:05,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:05,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:05,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:11:05,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:05,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:05,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:05,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:05,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:05,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:05,805 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:11:05,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662224899] [2020-10-29 04:11:05,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:05,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:11:05,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477816973] [2020-10-29 04:11:05,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:11:05,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:05,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:11:05,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:11:05,815 INFO L87 Difference]: Start difference. First operand 60 states and 72 transitions. Second operand 5 states. [2020-10-29 04:11:05,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:05,960 INFO L93 Difference]: Finished difference Result 102 states and 126 transitions. [2020-10-29 04:11:05,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:11:05,961 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-10-29 04:11:05,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:05,963 INFO L225 Difference]: With dead ends: 102 [2020-10-29 04:11:05,963 INFO L226 Difference]: Without dead ends: 79 [2020-10-29 04:11:05,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:11:05,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-29 04:11:05,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 60. [2020-10-29 04:11:05,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-29 04:11:05,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 72 transitions. [2020-10-29 04:11:05,984 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 72 transitions. Word has length 33 [2020-10-29 04:11:05,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:05,985 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 72 transitions. [2020-10-29 04:11:05,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:11:05,985 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2020-10-29 04:11:05,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-29 04:11:05,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:05,990 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:05,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 04:11:05,991 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:05,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:05,993 INFO L82 PathProgramCache]: Analyzing trace with hash -802862820, now seen corresponding path program 2 times [2020-10-29 04:11:05,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:05,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652541232] [2020-10-29 04:11:05,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:06,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:06,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:06,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-29 04:11:06,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:06,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 04:11:06,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:06,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:06,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:06,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-29 04:11:06,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:06,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:06,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:06,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:06,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:06,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:06,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:06,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:06,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:06,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:06,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:06,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:06,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:06,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:06,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:06,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:06,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:06,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:06,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:06,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:06,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:06,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:06,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:06,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:06,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:06,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:06,146 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:11:06,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652541232] [2020-10-29 04:11:06,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:11:06,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:11:06,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553781001] [2020-10-29 04:11:06,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:11:06,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:06,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:11:06,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:11:06,150 INFO L87 Difference]: Start difference. First operand 60 states and 72 transitions. Second operand 4 states. [2020-10-29 04:11:06,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:06,274 INFO L93 Difference]: Finished difference Result 83 states and 99 transitions. [2020-10-29 04:11:06,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:11:06,275 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-10-29 04:11:06,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:06,276 INFO L225 Difference]: With dead ends: 83 [2020-10-29 04:11:06,276 INFO L226 Difference]: Without dead ends: 60 [2020-10-29 04:11:06,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:11:06,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-29 04:11:06,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 49. [2020-10-29 04:11:06,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-29 04:11:06,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2020-10-29 04:11:06,296 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 56 transitions. Word has length 33 [2020-10-29 04:11:06,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:06,296 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 56 transitions. [2020-10-29 04:11:06,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:11:06,297 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 56 transitions. [2020-10-29 04:11:06,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-29 04:11:06,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:06,300 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:06,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 04:11:06,301 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:06,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:06,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1769011462, now seen corresponding path program 1 times [2020-10-29 04:11:06,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:06,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885764601] [2020-10-29 04:11:06,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:06,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:06,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:06,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-29 04:11:06,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:06,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-10-29 04:11:06,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:06,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 04:11:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:11:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 04:11:06,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:06,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:06,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:06,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:06,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:06,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:06,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:11:06,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:06,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:06,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:06,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:06,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:06,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:06,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:06,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:06,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:06,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:06,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:06,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:06,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:06,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:06,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:06,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:06,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:06,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:06,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 04:11:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:06,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:06,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:06,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:06,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:06,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:06,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:06,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:06,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:06,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:06,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:06,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:06,837 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:11:06,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885764601] [2020-10-29 04:11:06,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:06,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 04:11:06,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791485592] [2020-10-29 04:11:06,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 04:11:06,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:06,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 04:11:06,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:11:06,840 INFO L87 Difference]: Start difference. First operand 49 states and 56 transitions. Second operand 11 states. [2020-10-29 04:11:07,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:07,516 INFO L93 Difference]: Finished difference Result 115 states and 141 transitions. [2020-10-29 04:11:07,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 04:11:07,517 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-10-29 04:11:07,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:07,518 INFO L225 Difference]: With dead ends: 115 [2020-10-29 04:11:07,518 INFO L226 Difference]: Without dead ends: 112 [2020-10-29 04:11:07,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2020-10-29 04:11:07,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-29 04:11:07,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 72. [2020-10-29 04:11:07,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-29 04:11:07,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2020-10-29 04:11:07,532 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 37 [2020-10-29 04:11:07,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:07,533 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2020-10-29 04:11:07,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 04:11:07,533 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2020-10-29 04:11:07,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-29 04:11:07,535 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:07,535 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:07,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 04:11:07,535 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:07,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:07,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1070000250, now seen corresponding path program 1 times [2020-10-29 04:11:07,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:07,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604801594] [2020-10-29 04:11:07,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:07,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:07,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:07,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-29 04:11:07,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:07,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-29 04:11:07,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:07,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:07,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 04:11:07,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:11:07,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 04:11:07,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:07,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:07,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:07,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:07,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:07,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:07,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:11:07,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:07,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:07,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:07,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:07,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:07,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:07,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:07,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:07,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:07,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:07,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:07,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:07,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:07,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:07,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:07,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:07,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:07,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:07,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:07,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 04:11:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:07,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:07,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:07,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:07,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:07,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:11:07,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:07,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:07,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:07,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:07,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:07,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:07,942 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:11:07,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604801594] [2020-10-29 04:11:07,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:07,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 04:11:07,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951709159] [2020-10-29 04:11:07,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 04:11:07,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:07,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 04:11:07,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-29 04:11:07,945 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand 9 states. [2020-10-29 04:11:08,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:08,432 INFO L93 Difference]: Finished difference Result 136 states and 167 transitions. [2020-10-29 04:11:08,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 04:11:08,432 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2020-10-29 04:11:08,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:08,434 INFO L225 Difference]: With dead ends: 136 [2020-10-29 04:11:08,434 INFO L226 Difference]: Without dead ends: 119 [2020-10-29 04:11:08,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2020-10-29 04:11:08,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-29 04:11:08,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 84. [2020-10-29 04:11:08,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-29 04:11:08,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 101 transitions. [2020-10-29 04:11:08,451 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 101 transitions. Word has length 37 [2020-10-29 04:11:08,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:08,451 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 101 transitions. [2020-10-29 04:11:08,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 04:11:08,452 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 101 transitions. [2020-10-29 04:11:08,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-29 04:11:08,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:08,453 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:08,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 04:11:08,453 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:08,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:08,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1989517004, now seen corresponding path program 1 times [2020-10-29 04:11:08,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:08,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201685680] [2020-10-29 04:11:08,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:08,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:08,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:08,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:08,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:08,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:08,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-29 04:11:08,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:11:08,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-29 04:11:08,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:08,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:08,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 04:11:08,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:11:08,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 04:11:08,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:08,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:08,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:08,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:08,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:08,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:08,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:11:08,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:08,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:08,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:08,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:08,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:08,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:08,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:08,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:08,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:08,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:08,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:08,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:11:08,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:08,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:08,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:08,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:08,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:08,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:08,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 04:11:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:08,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:08,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:08,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:08,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:08,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:08,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:08,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:08,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:08,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:08,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:08,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:08,775 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-29 04:11:08,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201685680] [2020-10-29 04:11:08,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:08,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:11:08,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490445465] [2020-10-29 04:11:08,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:11:08,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:08,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:11:08,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:11:08,779 INFO L87 Difference]: Start difference. First operand 84 states and 101 transitions. Second operand 5 states. [2020-10-29 04:11:08,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:08,923 INFO L93 Difference]: Finished difference Result 136 states and 165 transitions. [2020-10-29 04:11:08,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:11:08,923 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-10-29 04:11:08,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:08,925 INFO L225 Difference]: With dead ends: 136 [2020-10-29 04:11:08,925 INFO L226 Difference]: Without dead ends: 93 [2020-10-29 04:11:08,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:11:08,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-29 04:11:08,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 84. [2020-10-29 04:11:08,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-29 04:11:08,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 99 transitions. [2020-10-29 04:11:08,944 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 99 transitions. Word has length 42 [2020-10-29 04:11:08,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:08,944 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 99 transitions. [2020-10-29 04:11:08,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:11:08,944 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 99 transitions. [2020-10-29 04:11:08,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-29 04:11:08,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:08,945 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:08,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 04:11:08,946 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:08,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:08,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1171868554, now seen corresponding path program 1 times [2020-10-29 04:11:08,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:08,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [564221918] [2020-10-29 04:11:08,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:08,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:09,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:09,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:09,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:09,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-29 04:11:09,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:11:09,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-10-29 04:11:09,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:09,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:09,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 04:11:09,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:11:09,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 04:11:09,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:09,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:09,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:09,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:09,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:09,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:09,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:09,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:09,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:09,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:09,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:09,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:09,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:09,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:09,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:09,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:11:09,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:09,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:09,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:09,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:09,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:09,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:09,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 04:11:09,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:09,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:09,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:09,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:09,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:09,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:09,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:09,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:09,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:09,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:09,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:09,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:09,390 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 04:11:09,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [564221918] [2020-10-29 04:11:09,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:09,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:11:09,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338764500] [2020-10-29 04:11:09,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:11:09,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:09,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:11:09,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:11:09,392 INFO L87 Difference]: Start difference. First operand 84 states and 99 transitions. Second operand 5 states. [2020-10-29 04:11:09,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:09,529 INFO L93 Difference]: Finished difference Result 128 states and 153 transitions. [2020-10-29 04:11:09,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:11:09,530 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-10-29 04:11:09,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:09,532 INFO L225 Difference]: With dead ends: 128 [2020-10-29 04:11:09,532 INFO L226 Difference]: Without dead ends: 103 [2020-10-29 04:11:09,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:11:09,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-29 04:11:09,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 89. [2020-10-29 04:11:09,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-29 04:11:09,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 106 transitions. [2020-10-29 04:11:09,554 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 106 transitions. Word has length 42 [2020-10-29 04:11:09,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:09,554 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 106 transitions. [2020-10-29 04:11:09,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:11:09,554 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 106 transitions. [2020-10-29 04:11:09,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-29 04:11:09,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:09,555 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:09,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 04:11:09,555 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:09,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:09,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1312417164, now seen corresponding path program 1 times [2020-10-29 04:11:09,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:09,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1039824815] [2020-10-29 04:11:09,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:09,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:09,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:09,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-29 04:11:09,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:09,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 04:11:09,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:09,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:09,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:09,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-29 04:11:09,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:09,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:09,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:09,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:09,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:09,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:09,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:09,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:09,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:11:09,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:09,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:09,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:09,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:09,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:09,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:09,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:09,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:09,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:09,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:09,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:09,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:09,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:09,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:09,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:09,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:09,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 04:11:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:09,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:09,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:09,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:09,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:09,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:09,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:09,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:09,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:09,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:09,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:09,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:09,756 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 04:11:09,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1039824815] [2020-10-29 04:11:09,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:11:09,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:11:09,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465486329] [2020-10-29 04:11:09,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:11:09,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:09,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:11:09,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:11:09,759 INFO L87 Difference]: Start difference. First operand 89 states and 106 transitions. Second operand 4 states. [2020-10-29 04:11:09,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:09,875 INFO L93 Difference]: Finished difference Result 120 states and 143 transitions. [2020-10-29 04:11:09,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:11:09,876 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-10-29 04:11:09,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:09,877 INFO L225 Difference]: With dead ends: 120 [2020-10-29 04:11:09,877 INFO L226 Difference]: Without dead ends: 95 [2020-10-29 04:11:09,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:11:09,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-10-29 04:11:09,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 84. [2020-10-29 04:11:09,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-29 04:11:09,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 97 transitions. [2020-10-29 04:11:09,901 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 97 transitions. Word has length 42 [2020-10-29 04:11:09,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:09,901 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 97 transitions. [2020-10-29 04:11:09,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:11:09,901 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 97 transitions. [2020-10-29 04:11:09,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-29 04:11:09,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:09,902 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:09,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 04:11:09,902 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:09,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:09,903 INFO L82 PathProgramCache]: Analyzing trace with hash 951754952, now seen corresponding path program 2 times [2020-10-29 04:11:09,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:09,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [955652501] [2020-10-29 04:11:09,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:09,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:09,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:09,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-29 04:11:09,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:09,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 04:11:09,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:09,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:09,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:09,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-29 04:11:09,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:09,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:10,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:10,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:10,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:10,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:10,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:10,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 04:11:10,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:10,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:10,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:10,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:10,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:10,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:10,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:10,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:10,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:10,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:10,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:10,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:10,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:10,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:10,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:10,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:10,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:10,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:10,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 04:11:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:10,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:10,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:10,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:10,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:10,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:10,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:10,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:10,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:10,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:10,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:10,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:10,064 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 04:11:10,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [955652501] [2020-10-29 04:11:10,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:11:10,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:11:10,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127200360] [2020-10-29 04:11:10,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:11:10,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:10,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:11:10,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:11:10,068 INFO L87 Difference]: Start difference. First operand 84 states and 97 transitions. Second operand 4 states. [2020-10-29 04:11:10,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:10,171 INFO L93 Difference]: Finished difference Result 110 states and 127 transitions. [2020-10-29 04:11:10,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:11:10,172 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-10-29 04:11:10,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:10,173 INFO L225 Difference]: With dead ends: 110 [2020-10-29 04:11:10,173 INFO L226 Difference]: Without dead ends: 85 [2020-10-29 04:11:10,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:11:10,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-29 04:11:10,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 78. [2020-10-29 04:11:10,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-29 04:11:10,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions. [2020-10-29 04:11:10,186 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 42 [2020-10-29 04:11:10,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:10,187 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 89 transitions. [2020-10-29 04:11:10,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:11:10,187 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions. [2020-10-29 04:11:10,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-29 04:11:10,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:10,188 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:10,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 04:11:10,188 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:10,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:10,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1027173600, now seen corresponding path program 2 times [2020-10-29 04:11:10,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:10,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226290596] [2020-10-29 04:11:10,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:10,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:10,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:10,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-29 04:11:10,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:10,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-10-29 04:11:10,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:10,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:10,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 04:11:10,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:11:10,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 04:11:10,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:10,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:10,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:10,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:10,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:10,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:10,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:10,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:10,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:10,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:10,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:10,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:10,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:10,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:10,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:10,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:10,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:10,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:10,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:10,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:10,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:10,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:10,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:10,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:10,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:10,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 04:11:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:10,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:10,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:10,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:10,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:10,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:10,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:10,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:10,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:10,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:10,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:10,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:10,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 04:11:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:10,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:10,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:10,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:10,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:10,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:10,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:10,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:10,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:10,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:10,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:10,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:10,657 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 04:11:10,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1226290596] [2020-10-29 04:11:10,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:10,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 04:11:10,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164402713] [2020-10-29 04:11:10,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 04:11:10,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:10,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 04:11:10,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:11:10,659 INFO L87 Difference]: Start difference. First operand 78 states and 89 transitions. Second operand 11 states. [2020-10-29 04:11:11,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:11,374 INFO L93 Difference]: Finished difference Result 141 states and 165 transitions. [2020-10-29 04:11:11,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 04:11:11,375 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 46 [2020-10-29 04:11:11,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:11,376 INFO L225 Difference]: With dead ends: 141 [2020-10-29 04:11:11,376 INFO L226 Difference]: Without dead ends: 138 [2020-10-29 04:11:11,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2020-10-29 04:11:11,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-29 04:11:11,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 101. [2020-10-29 04:11:11,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-29 04:11:11,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2020-10-29 04:11:11,399 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 117 transitions. Word has length 46 [2020-10-29 04:11:11,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:11,400 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 117 transitions. [2020-10-29 04:11:11,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 04:11:11,400 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 117 transitions. [2020-10-29 04:11:11,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-29 04:11:11,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:11,401 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:11,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 04:11:11,401 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:11,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:11,402 INFO L82 PathProgramCache]: Analyzing trace with hash 330615262, now seen corresponding path program 2 times [2020-10-29 04:11:11,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:11,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1398262263] [2020-10-29 04:11:11,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:11,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:11,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:11,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-29 04:11:11,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:11,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-29 04:11:11,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:11,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:11,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 04:11:11,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:11:11,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-29 04:11:11,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:11,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:11,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:11,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:11,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:11,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:11,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:11:11,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:11,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:11,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:11,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:11,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:11,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:11,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:11,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:11,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:11,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:11,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:11,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:11,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:11,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:11,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:11,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:11,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:11,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:11,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 04:11:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:11,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:11,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:11,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:11,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:11,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:11,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:11,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:11,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:11,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:11,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:11,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:11,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 04:11:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:11,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:11,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:11,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:11,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:11,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:11,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:11,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:11,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:11,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:11,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:11,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:11,809 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 04:11:11,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1398262263] [2020-10-29 04:11:11,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:11,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 04:11:11,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164479956] [2020-10-29 04:11:11,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 04:11:11,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:11,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 04:11:11,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-29 04:11:11,813 INFO L87 Difference]: Start difference. First operand 101 states and 117 transitions. Second operand 9 states. [2020-10-29 04:11:12,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:12,316 INFO L93 Difference]: Finished difference Result 164 states and 193 transitions. [2020-10-29 04:11:12,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 04:11:12,317 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 46 [2020-10-29 04:11:12,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:12,319 INFO L225 Difference]: With dead ends: 164 [2020-10-29 04:11:12,319 INFO L226 Difference]: Without dead ends: 147 [2020-10-29 04:11:12,320 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2020-10-29 04:11:12,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-29 04:11:12,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 113. [2020-10-29 04:11:12,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-29 04:11:12,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 133 transitions. [2020-10-29 04:11:12,339 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 133 transitions. Word has length 46 [2020-10-29 04:11:12,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:12,340 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 133 transitions. [2020-10-29 04:11:12,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 04:11:12,340 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 133 transitions. [2020-10-29 04:11:12,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-29 04:11:12,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:12,341 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:12,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 04:11:12,341 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:12,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:12,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1663335652, now seen corresponding path program 1 times [2020-10-29 04:11:12,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:12,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81302778] [2020-10-29 04:11:12,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:12,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:12,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:12,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-29 04:11:12,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:12,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 04:11:12,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:12,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:12,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:12,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-29 04:11:12,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:12,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:12,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:12,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:12,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:12,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:12,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:12,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:11:12,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:12,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:12,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:12,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:12,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:12,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:12,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:12,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:12,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:12,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:12,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:12,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:12,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:12,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:12,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:12,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:12,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:12,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:12,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 04:11:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:12,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:12,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:12,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:12,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:12,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:12,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:12,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:12,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:12,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:12,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:12,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:12,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 04:11:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:12,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:12,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:12,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:12,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:12,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:12,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:12,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:12,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:12,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:12,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:12,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:12,495 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-29 04:11:12,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81302778] [2020-10-29 04:11:12,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:11:12,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:11:12,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194138394] [2020-10-29 04:11:12,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:11:12,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:12,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:11:12,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:11:12,497 INFO L87 Difference]: Start difference. First operand 113 states and 133 transitions. Second operand 4 states. [2020-10-29 04:11:12,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:12,613 INFO L93 Difference]: Finished difference Result 149 states and 176 transitions. [2020-10-29 04:11:12,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:11:12,614 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-10-29 04:11:12,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:12,615 INFO L225 Difference]: With dead ends: 149 [2020-10-29 04:11:12,615 INFO L226 Difference]: Without dead ends: 119 [2020-10-29 04:11:12,616 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:11:12,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-29 04:11:12,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 113. [2020-10-29 04:11:12,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-29 04:11:12,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 131 transitions. [2020-10-29 04:11:12,637 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 131 transitions. Word has length 51 [2020-10-29 04:11:12,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:12,637 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 131 transitions. [2020-10-29 04:11:12,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:11:12,637 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 131 transitions. [2020-10-29 04:11:12,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-29 04:11:12,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:12,638 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:12,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 04:11:12,638 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:12,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:12,639 INFO L82 PathProgramCache]: Analyzing trace with hash -998555048, now seen corresponding path program 2 times [2020-10-29 04:11:12,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:12,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1288970347] [2020-10-29 04:11:12,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:12,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:12,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:12,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:12,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-29 04:11:12,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:12,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 04:11:12,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:12,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:12,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:12,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-29 04:11:12,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:12,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:12,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:12,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:12,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:12,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:12,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:12,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:11:12,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:12,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:12,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:12,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:12,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:12,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:12,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:12,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:12,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:12,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:12,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:12,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:12,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:12,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:12,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:12,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:12,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:12,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:12,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 04:11:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:12,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:12,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:12,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:12,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:12,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:12,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:12,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:12,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:12,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:12,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:12,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:12,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 04:11:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:12,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:12,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:12,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:12,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:12,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:12,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:12,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:12,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:12,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:11:12,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:12,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:12,785 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-29 04:11:12,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1288970347] [2020-10-29 04:11:12,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:11:12,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:11:12,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437919433] [2020-10-29 04:11:12,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:11:12,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:12,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:11:12,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:11:12,787 INFO L87 Difference]: Start difference. First operand 113 states and 131 transitions. Second operand 4 states. [2020-10-29 04:11:12,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:12,899 INFO L93 Difference]: Finished difference Result 146 states and 169 transitions. [2020-10-29 04:11:12,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:11:12,899 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-10-29 04:11:12,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:12,900 INFO L225 Difference]: With dead ends: 146 [2020-10-29 04:11:12,900 INFO L226 Difference]: Without dead ends: 116 [2020-10-29 04:11:12,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:11:12,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-29 04:11:12,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 107. [2020-10-29 04:11:12,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-29 04:11:12,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 123 transitions. [2020-10-29 04:11:12,920 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 123 transitions. Word has length 51 [2020-10-29 04:11:12,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:12,920 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 123 transitions. [2020-10-29 04:11:12,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:11:12,920 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 123 transitions. [2020-10-29 04:11:12,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-29 04:11:12,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:12,921 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 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 04:11:12,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-29 04:11:12,922 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:12,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:12,922 INFO L82 PathProgramCache]: Analyzing trace with hash 785165894, now seen corresponding path program 3 times [2020-10-29 04:11:12,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:12,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880657094] [2020-10-29 04:11:12,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:12,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:13,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:13,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:13,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 04:11:13,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:11:13,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 597 [2020-10-29 04:11:13,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:13,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:13,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 04:11:13,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:11:13,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-29 04:11:13,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:13,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:13,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:13,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:13,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:13,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:13,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:11:13,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:13,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:13,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:13,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:13,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:13,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:13,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:13,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:13,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:13,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:13,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:13,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:11:13,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 04:11:13,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:13,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:13,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:13,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:13,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:13,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:13,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 04:11:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:13,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:13,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:13,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:13,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:13,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:13,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:13,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:13,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:13,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:13,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:13,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:13,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 04:11:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:13,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:13,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:13,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:13,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:13,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:13,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:13,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:13,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:13,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:13,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:13,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:13,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 04:11:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:13,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:13,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:13,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:13,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:13,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:13,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:13,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:13,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:13,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:13,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:13,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:13,771 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-29 04:11:13,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1880657094] [2020-10-29 04:11:13,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:13,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 04:11:13,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453824718] [2020-10-29 04:11:13,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 04:11:13,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:13,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 04:11:13,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:11:13,773 INFO L87 Difference]: Start difference. First operand 107 states and 123 transitions. Second operand 11 states. [2020-10-29 04:11:14,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:14,452 INFO L93 Difference]: Finished difference Result 211 states and 240 transitions. [2020-10-29 04:11:14,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 04:11:14,452 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 55 [2020-10-29 04:11:14,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:14,454 INFO L225 Difference]: With dead ends: 211 [2020-10-29 04:11:14,454 INFO L226 Difference]: Without dead ends: 134 [2020-10-29 04:11:14,455 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2020-10-29 04:11:14,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-29 04:11:14,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 118. [2020-10-29 04:11:14,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-29 04:11:14,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 134 transitions. [2020-10-29 04:11:14,478 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 134 transitions. Word has length 55 [2020-10-29 04:11:14,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:14,478 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 134 transitions. [2020-10-29 04:11:14,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 04:11:14,478 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 134 transitions. [2020-10-29 04:11:14,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-29 04:11:14,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:14,480 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:14,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-29 04:11:14,480 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:14,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:14,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1880656180, now seen corresponding path program 4 times [2020-10-29 04:11:14,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:14,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201021827] [2020-10-29 04:11:14,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:14,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:15,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:15,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-29 04:11:15,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:15,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 540 [2020-10-29 04:11:15,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:15,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:15,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 04:11:15,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:11:15,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-29 04:11:15,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:15,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:15,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:15,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:15,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:15,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:15,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:15,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:15,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:15,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:15,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:15,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:15,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:15,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:15,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:15,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:15,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:15,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:15,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:15,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:15,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:15,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:15,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 04:11:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:15,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:15,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:15,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:15,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:15,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:15,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:15,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:15,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:15,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:15,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:15,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:15,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 04:11:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:15,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:15,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:15,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:15,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:15,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:15,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:15,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:15,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:15,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:15,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:15,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:15,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:11:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:15,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:15,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:15,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:15,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:15,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:15,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:15,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:15,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:15,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:15,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:15,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:15,294 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 31 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-29 04:11:15,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201021827] [2020-10-29 04:11:15,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:15,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 04:11:15,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431182039] [2020-10-29 04:11:15,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 04:11:15,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:15,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 04:11:15,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-29 04:11:15,299 INFO L87 Difference]: Start difference. First operand 118 states and 134 transitions. Second operand 14 states. [2020-10-29 04:11:16,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:16,581 INFO L93 Difference]: Finished difference Result 205 states and 239 transitions. [2020-10-29 04:11:16,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-29 04:11:16,584 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 60 [2020-10-29 04:11:16,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:16,586 INFO L225 Difference]: With dead ends: 205 [2020-10-29 04:11:16,588 INFO L226 Difference]: Without dead ends: 202 [2020-10-29 04:11:16,592 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=199, Invalid=1207, Unknown=0, NotChecked=0, Total=1406 [2020-10-29 04:11:16,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-29 04:11:16,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 140. [2020-10-29 04:11:16,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-29 04:11:16,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 164 transitions. [2020-10-29 04:11:16,623 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 164 transitions. Word has length 60 [2020-10-29 04:11:16,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:16,624 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 164 transitions. [2020-10-29 04:11:16,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 04:11:16,624 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 164 transitions. [2020-10-29 04:11:16,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-29 04:11:16,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:16,627 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:16,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-29 04:11:16,628 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:16,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:16,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1610468810, now seen corresponding path program 3 times [2020-10-29 04:11:16,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:16,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2068445300] [2020-10-29 04:11:16,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:16,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:17,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:17,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-29 04:11:17,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:17,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 484 [2020-10-29 04:11:17,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:17,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:17,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 04:11:17,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:11:17,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-29 04:11:17,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:17,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:17,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:17,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:17,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:17,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:17,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:17,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:17,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:17,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:17,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:17,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:17,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:17,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:17,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:17,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:17,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:17,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:17,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:17,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:17,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:17,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:17,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:17,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:17,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:17,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 04:11:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:17,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:17,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:17,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:17,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:17,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:17,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:17,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:17,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:17,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:17,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:17,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:17,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 04:11:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:17,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:17,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:17,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:17,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:17,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:17,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:17,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:17,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:17,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:17,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:17,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:17,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:11:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:17,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:17,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:17,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:17,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:17,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:17,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:17,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:17,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:17,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:17,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:17,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:17,375 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 9 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-29 04:11:17,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2068445300] [2020-10-29 04:11:17,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:17,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 04:11:17,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394599991] [2020-10-29 04:11:17,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 04:11:17,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:17,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 04:11:17,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-29 04:11:17,386 INFO L87 Difference]: Start difference. First operand 140 states and 164 transitions. Second operand 12 states. [2020-10-29 04:11:18,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:18,460 INFO L93 Difference]: Finished difference Result 222 states and 258 transitions. [2020-10-29 04:11:18,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 04:11:18,461 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 60 [2020-10-29 04:11:18,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:18,463 INFO L225 Difference]: With dead ends: 222 [2020-10-29 04:11:18,463 INFO L226 Difference]: Without dead ends: 205 [2020-10-29 04:11:18,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=159, Invalid=711, Unknown=0, NotChecked=0, Total=870 [2020-10-29 04:11:18,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-29 04:11:18,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 145. [2020-10-29 04:11:18,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-29 04:11:18,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 170 transitions. [2020-10-29 04:11:18,508 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 170 transitions. Word has length 60 [2020-10-29 04:11:18,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:18,508 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 170 transitions. [2020-10-29 04:11:18,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 04:11:18,509 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 170 transitions. [2020-10-29 04:11:18,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-29 04:11:18,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:18,510 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:18,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-29 04:11:18,510 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:18,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:18,511 INFO L82 PathProgramCache]: Analyzing trace with hash -930279974, now seen corresponding path program 5 times [2020-10-29 04:11:18,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:18,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1886255884] [2020-10-29 04:11:18,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:18,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:19,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:19,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-29 04:11:19,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:19,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 535 [2020-10-29 04:11:19,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:19,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:19,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 04:11:19,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:11:19,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 04:11:19,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:19,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:19,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:19,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:19,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:19,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:19,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:19,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:19,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:19,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:19,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:19,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:19,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:19,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:19,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:19,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:19,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:19,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:19,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:19,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:19,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:19,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:19,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:19,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:19,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:19,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 04:11:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:19,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:19,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:19,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:19,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:19,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:19,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:19,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:19,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:19,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:19,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:19,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:19,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 04:11:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:19,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:19,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:19,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:19,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:19,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:19,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:19,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:19,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:19,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:19,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:19,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:19,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:11:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:19,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:19,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:19,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:19,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:19,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:19,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:19,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:19,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:19,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:19,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:19,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:19,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 04:11:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:19,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:19,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:19,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:19,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:19,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:19,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:19,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:19,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:19,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:19,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:19,382 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 8 proven. 49 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-29 04:11:19,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1886255884] [2020-10-29 04:11:19,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:19,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 04:11:19,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132574850] [2020-10-29 04:11:19,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 04:11:19,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:19,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 04:11:19,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-29 04:11:19,384 INFO L87 Difference]: Start difference. First operand 145 states and 170 transitions. Second operand 15 states. [2020-10-29 04:11:20,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:20,852 INFO L93 Difference]: Finished difference Result 234 states and 275 transitions. [2020-10-29 04:11:20,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-29 04:11:20,853 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 69 [2020-10-29 04:11:20,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:20,855 INFO L225 Difference]: With dead ends: 234 [2020-10-29 04:11:20,855 INFO L226 Difference]: Without dead ends: 231 [2020-10-29 04:11:20,856 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=219, Invalid=1421, Unknown=0, NotChecked=0, Total=1640 [2020-10-29 04:11:20,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-10-29 04:11:20,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 166. [2020-10-29 04:11:20,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-29 04:11:20,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 197 transitions. [2020-10-29 04:11:20,896 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 197 transitions. Word has length 69 [2020-10-29 04:11:20,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:20,896 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 197 transitions. [2020-10-29 04:11:20,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 04:11:20,896 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 197 transitions. [2020-10-29 04:11:20,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-29 04:11:20,898 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:20,898 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:20,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-29 04:11:20,900 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:20,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:20,901 INFO L82 PathProgramCache]: Analyzing trace with hash 173989914, now seen corresponding path program 4 times [2020-10-29 04:11:20,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:20,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1416015616] [2020-10-29 04:11:20,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:20,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:21,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:21,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-29 04:11:21,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:21,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 422 [2020-10-29 04:11:21,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:21,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:21,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 04:11:21,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:11:21,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-29 04:11:21,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:21,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:21,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:21,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:21,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:21,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:21,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:11:21,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:21,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:21,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:21,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:21,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:21,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:21,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:21,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:21,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:21,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:21,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:21,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:21,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:21,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:21,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:21,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:21,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:21,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:21,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 04:11:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:21,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:21,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:21,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:21,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:21,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:21,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:21,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:21,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:21,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:21,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:21,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:21,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 04:11:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:21,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:21,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:21,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:21,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:21,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:21,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:21,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:21,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:21,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:21,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:21,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:21,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:11:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:21,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:21,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:21,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:21,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:21,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:21,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:21,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:21,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:21,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:21,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:21,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:21,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 04:11:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:21,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:21,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:21,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:21,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:21,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:21,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:21,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:21,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:21,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:21,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:21,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:21,623 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-29 04:11:21,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1416015616] [2020-10-29 04:11:21,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:21,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 04:11:21,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563807056] [2020-10-29 04:11:21,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 04:11:21,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:21,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 04:11:21,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:11:21,626 INFO L87 Difference]: Start difference. First operand 166 states and 197 transitions. Second operand 13 states. [2020-10-29 04:11:22,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:22,804 INFO L93 Difference]: Finished difference Result 250 states and 293 transitions. [2020-10-29 04:11:22,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-29 04:11:22,805 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 69 [2020-10-29 04:11:22,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:22,807 INFO L225 Difference]: With dead ends: 250 [2020-10-29 04:11:22,808 INFO L226 Difference]: Without dead ends: 233 [2020-10-29 04:11:22,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=947, Unknown=0, NotChecked=0, Total=1122 [2020-10-29 04:11:22,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-10-29 04:11:22,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 171. [2020-10-29 04:11:22,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-10-29 04:11:22,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 203 transitions. [2020-10-29 04:11:22,842 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 203 transitions. Word has length 69 [2020-10-29 04:11:22,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:22,842 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 203 transitions. [2020-10-29 04:11:22,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 04:11:22,842 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 203 transitions. [2020-10-29 04:11:22,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-29 04:11:22,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:22,844 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:22,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-29 04:11:22,844 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:22,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:22,845 INFO L82 PathProgramCache]: Analyzing trace with hash 658867852, now seen corresponding path program 6 times [2020-10-29 04:11:22,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:22,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630165424] [2020-10-29 04:11:22,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:22,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:23,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:23,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 04:11:23,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:23,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 500 [2020-10-29 04:11:23,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:23,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:23,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 04:11:23,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:11:23,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 04:11:23,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:23,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:23,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:23,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:23,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:23,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:23,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:11:23,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:23,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:23,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:23,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:23,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:23,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:23,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:23,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:23,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:23,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:23,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:23,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:23,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:23,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:23,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:23,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:23,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:23,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:23,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 04:11:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:23,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:23,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:23,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:23,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:23,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:23,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:23,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:23,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:23,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:23,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:23,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:23,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 04:11:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:23,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:23,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:23,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:23,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:23,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:23,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:23,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:23,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:23,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:23,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:23,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:23,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:11:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:23,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:23,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:23,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:23,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:23,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:23,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:23,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:23,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:23,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:23,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:23,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:23,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 04:11:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:23,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:23,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:23,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:23,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:23,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:23,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:23,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:23,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:23,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:23,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:23,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:23,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 04:11:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:23,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:23,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:23,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:23,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:23,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:23,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:23,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:23,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:23,647 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 10 proven. 72 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-29 04:11:23,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630165424] [2020-10-29 04:11:23,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:23,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 04:11:23,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164848612] [2020-10-29 04:11:23,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 04:11:23,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:23,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 04:11:23,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2020-10-29 04:11:23,649 INFO L87 Difference]: Start difference. First operand 171 states and 203 transitions. Second operand 15 states. [2020-10-29 04:11:25,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:25,378 INFO L93 Difference]: Finished difference Result 260 states and 306 transitions. [2020-10-29 04:11:25,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-29 04:11:25,379 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 78 [2020-10-29 04:11:25,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:25,382 INFO L225 Difference]: With dead ends: 260 [2020-10-29 04:11:25,382 INFO L226 Difference]: Without dead ends: 257 [2020-10-29 04:11:25,383 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=220, Invalid=1586, Unknown=0, NotChecked=0, Total=1806 [2020-10-29 04:11:25,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-10-29 04:11:25,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 191. [2020-10-29 04:11:25,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-29 04:11:25,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 227 transitions. [2020-10-29 04:11:25,429 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 227 transitions. Word has length 78 [2020-10-29 04:11:25,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:25,429 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 227 transitions. [2020-10-29 04:11:25,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 04:11:25,429 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 227 transitions. [2020-10-29 04:11:25,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-29 04:11:25,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:25,432 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:25,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-29 04:11:25,433 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:25,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:25,433 INFO L82 PathProgramCache]: Analyzing trace with hash -33200182, now seen corresponding path program 5 times [2020-10-29 04:11:25,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:25,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [607284750] [2020-10-29 04:11:25,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:25,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:25,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:25,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 04:11:25,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:25,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 487 [2020-10-29 04:11:25,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:25,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:25,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 04:11:25,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:11:25,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 04:11:25,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:26,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:26,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:26,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:26,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:26,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:26,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:26,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:26,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:26,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:26,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:26,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:26,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:26,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:26,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:26,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:26,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:26,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:26,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:26,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:26,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:26,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:26,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:26,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:26,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:26,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 04:11:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:26,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:26,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:26,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:26,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:26,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:26,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:26,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:26,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:26,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:26,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:26,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:26,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 04:11:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:26,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:26,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:26,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:26,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:26,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:26,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:26,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:26,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:26,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:26,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:26,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:26,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:11:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:26,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:26,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:26,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:26,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:26,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:26,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:26,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:26,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:26,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:26,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:26,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:26,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 04:11:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:26,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:26,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:26,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:26,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:26,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:26,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:26,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:26,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:26,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:26,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:26,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:26,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 04:11:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:26,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:26,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:26,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:26,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:26,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:26,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:26,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:26,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:26,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:26,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:26,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:26,200 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 15 proven. 67 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-29 04:11:26,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [607284750] [2020-10-29 04:11:26,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:26,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 04:11:26,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203665012] [2020-10-29 04:11:26,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 04:11:26,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:26,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 04:11:26,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:11:26,202 INFO L87 Difference]: Start difference. First operand 191 states and 227 transitions. Second operand 13 states. [2020-10-29 04:11:27,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:27,499 INFO L93 Difference]: Finished difference Result 276 states and 324 transitions. [2020-10-29 04:11:27,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-29 04:11:27,500 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 78 [2020-10-29 04:11:27,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:27,502 INFO L225 Difference]: With dead ends: 276 [2020-10-29 04:11:27,502 INFO L226 Difference]: Without dead ends: 259 [2020-10-29 04:11:27,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=180, Invalid=1080, Unknown=0, NotChecked=0, Total=1260 [2020-10-29 04:11:27,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-10-29 04:11:27,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 196. [2020-10-29 04:11:27,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-10-29 04:11:27,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 233 transitions. [2020-10-29 04:11:27,549 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 233 transitions. Word has length 78 [2020-10-29 04:11:27,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:27,550 INFO L481 AbstractCegarLoop]: Abstraction has 196 states and 233 transitions. [2020-10-29 04:11:27,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 04:11:27,550 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 233 transitions. [2020-10-29 04:11:27,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-29 04:11:27,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:27,552 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:27,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-29 04:11:27,552 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:27,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:27,552 INFO L82 PathProgramCache]: Analyzing trace with hash 530888218, now seen corresponding path program 7 times [2020-10-29 04:11:27,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:27,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636852455] [2020-10-29 04:11:27,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:27,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:27,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:28,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:28,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 04:11:28,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:11:28,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1407 [2020-10-29 04:11:28,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:28,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:28,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 04:11:28,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:11:28,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-29 04:11:28,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:29,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:29,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:29,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:29,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:29,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:29,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:29,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:29,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:29,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:29,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:29,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:29,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:29,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:29,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:29,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:29,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:29,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:29,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:11:29,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 04:11:29,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:29,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:29,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:29,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:29,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:29,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:29,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 04:11:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:29,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:29,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:29,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:29,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:29,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:29,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:29,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:29,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:29,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:29,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:29,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:29,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 04:11:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:29,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:29,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:29,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:29,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:29,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:29,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:29,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:29,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:29,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:11:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:29,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:29,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:29,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:29,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:29,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:11:29,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:29,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:29,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:29,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:29,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:29,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 04:11:29,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 04:11:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:29,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:29,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:29,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:29,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:29,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:29,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:29,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:29,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:29,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:29,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:29,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:29,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 04:11:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:29,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:29,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:29,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:29,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:29,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:29,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:29,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:29,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:29,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:29,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:29,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:29,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 04:11:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:29,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:29,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:29,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:29,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:29,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:29,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:29,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:29,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:29,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:29,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:29,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-10-29 04:11:29,345 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 105 proven. 7 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-29 04:11:29,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636852455] [2020-10-29 04:11:29,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:29,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 04:11:29,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456488845] [2020-10-29 04:11:29,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 04:11:29,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:29,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 04:11:29,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2020-10-29 04:11:29,347 INFO L87 Difference]: Start difference. First operand 196 states and 233 transitions. Second operand 15 states. [2020-10-29 04:11:30,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:30,212 INFO L93 Difference]: Finished difference Result 387 states and 458 transitions. [2020-10-29 04:11:30,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 04:11:30,213 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 87 [2020-10-29 04:11:30,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:30,215 INFO L225 Difference]: With dead ends: 387 [2020-10-29 04:11:30,215 INFO L226 Difference]: Without dead ends: 232 [2020-10-29 04:11:30,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=178, Invalid=634, Unknown=0, NotChecked=0, Total=812 [2020-10-29 04:11:30,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-29 04:11:30,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 216. [2020-10-29 04:11:30,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-10-29 04:11:30,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 253 transitions. [2020-10-29 04:11:30,256 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 253 transitions. Word has length 87 [2020-10-29 04:11:30,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:30,256 INFO L481 AbstractCegarLoop]: Abstraction has 216 states and 253 transitions. [2020-10-29 04:11:30,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 04:11:30,257 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 253 transitions. [2020-10-29 04:11:30,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-29 04:11:30,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:30,258 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:30,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-29 04:11:30,259 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:30,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:30,259 INFO L82 PathProgramCache]: Analyzing trace with hash 42722976, now seen corresponding path program 8 times [2020-10-29 04:11:30,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:30,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816991834] [2020-10-29 04:11:30,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:30,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:30,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:31,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:31,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 04:11:31,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:31,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 777 [2020-10-29 04:11:31,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:31,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:31,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 04:11:31,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:11:31,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 04:11:31,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:31,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:31,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:31,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:31,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:31,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:31,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:31,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:31,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:31,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:31,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:31,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:31,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:31,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:31,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:31,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:31,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:31,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:31,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:31,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:31,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:31,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:31,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:31,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:31,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:31,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 04:11:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:31,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:31,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:31,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:31,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:31,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:31,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:31,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:31,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:31,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:31,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:31,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:31,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 04:11:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:31,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:31,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:31,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:31,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:31,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:31,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:31,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:31,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:31,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:31,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:31,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:31,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 04:11:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:31,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:31,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:31,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:31,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:31,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:31,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:31,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:31,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:31,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:31,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:31,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:31,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 04:11:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:31,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:31,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:31,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:31,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:31,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:31,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:31,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:31,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:31,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:31,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:31,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:31,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 04:11:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:31,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:31,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:31,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:31,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:31,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:31,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:31,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:31,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:31,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:31,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:31,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:31,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 04:11:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:31,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:31,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:31,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:31,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:31,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:31,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:31,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:31,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:31,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:31,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:31,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:31,442 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 12 proven. 111 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-29 04:11:31,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816991834] [2020-10-29 04:11:31,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:31,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 04:11:31,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742682213] [2020-10-29 04:11:31,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 04:11:31,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:31,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 04:11:31,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2020-10-29 04:11:31,444 INFO L87 Difference]: Start difference. First operand 216 states and 253 transitions. Second operand 18 states. [2020-10-29 04:11:34,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:34,052 INFO L93 Difference]: Finished difference Result 321 states and 378 transitions. [2020-10-29 04:11:34,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-10-29 04:11:34,054 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 92 [2020-10-29 04:11:34,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:34,056 INFO L225 Difference]: With dead ends: 321 [2020-10-29 04:11:34,057 INFO L226 Difference]: Without dead ends: 318 [2020-10-29 04:11:34,058 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 938 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=376, Invalid=3164, Unknown=0, NotChecked=0, Total=3540 [2020-10-29 04:11:34,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-29 04:11:34,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 238. [2020-10-29 04:11:34,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-29 04:11:34,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 283 transitions. [2020-10-29 04:11:34,118 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 283 transitions. Word has length 92 [2020-10-29 04:11:34,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:34,119 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 283 transitions. [2020-10-29 04:11:34,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 04:11:34,119 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 283 transitions. [2020-10-29 04:11:34,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-29 04:11:34,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:34,121 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:34,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-29 04:11:34,121 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:34,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:34,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1745095006, now seen corresponding path program 6 times [2020-10-29 04:11:34,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:34,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [692760004] [2020-10-29 04:11:34,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:34,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:34,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:34,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 04:11:34,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:34,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 664 [2020-10-29 04:11:34,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:34,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:34,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 04:11:34,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:11:34,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 04:11:34,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:35,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:35,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:35,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:35,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:35,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:35,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:35,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:35,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:35,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:35,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:35,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:35,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:35,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:35,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:35,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:35,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:35,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:35,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:35,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:35,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:35,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:35,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:35,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:35,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:35,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 04:11:35,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:35,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:35,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:35,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:35,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:35,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:35,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:35,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:35,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:35,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:35,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:35,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:35,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 04:11:35,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:35,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:35,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:35,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:35,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:35,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:35,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:35,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:35,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:35,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:35,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:35,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:35,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 04:11:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:35,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:35,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:35,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:35,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:35,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:35,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:35,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:35,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:35,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 04:11:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:35,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:35,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:35,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:35,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:35,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:35,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:35,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:35,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:35,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:35,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:35,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:35,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 04:11:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:35,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:35,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:35,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:35,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:35,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:35,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:35,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:35,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:35,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:35,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:35,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:35,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 04:11:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:35,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:35,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:35,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:35,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:35,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:35,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:35,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:35,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:35,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:35,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:35,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:35,183 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 105 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-29 04:11:35,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [692760004] [2020-10-29 04:11:35,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:35,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 04:11:35,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192771134] [2020-10-29 04:11:35,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 04:11:35,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:35,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 04:11:35,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2020-10-29 04:11:35,187 INFO L87 Difference]: Start difference. First operand 238 states and 283 transitions. Second operand 16 states. [2020-10-29 04:11:37,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:37,412 INFO L93 Difference]: Finished difference Result 343 states and 403 transitions. [2020-10-29 04:11:37,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-29 04:11:37,413 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 92 [2020-10-29 04:11:37,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:37,416 INFO L225 Difference]: With dead ends: 343 [2020-10-29 04:11:37,416 INFO L226 Difference]: Without dead ends: 326 [2020-10-29 04:11:37,417 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=360, Invalid=2292, Unknown=0, NotChecked=0, Total=2652 [2020-10-29 04:11:37,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-10-29 04:11:37,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 243. [2020-10-29 04:11:37,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-10-29 04:11:37,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 289 transitions. [2020-10-29 04:11:37,462 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 289 transitions. Word has length 92 [2020-10-29 04:11:37,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:37,463 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 289 transitions. [2020-10-29 04:11:37,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 04:11:37,463 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 289 transitions. [2020-10-29 04:11:37,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-29 04:11:37,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:37,464 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:37,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-29 04:11:37,465 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:37,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:37,465 INFO L82 PathProgramCache]: Analyzing trace with hash 860302470, now seen corresponding path program 9 times [2020-10-29 04:11:37,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:37,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478204211] [2020-10-29 04:11:37,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:37,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:38,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:38,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 04:11:38,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:38,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 816 [2020-10-29 04:11:38,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:38,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:38,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 04:11:38,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:11:38,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-29 04:11:38,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:38,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:38,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:38,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:38,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:38,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:38,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:38,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:38,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:38,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:38,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:38,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:38,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:38,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:38,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:38,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:38,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:38,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:38,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:38,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:38,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:38,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:38,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:38,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:38,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:38,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 04:11:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:38,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:38,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:38,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:38,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:38,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:38,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:38,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:38,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:38,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:38,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:38,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:38,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 04:11:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:38,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:38,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:38,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:38,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:38,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:38,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:38,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:38,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:38,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:38,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:38,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:38,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 04:11:38,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:38,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:38,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:38,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:38,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:38,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:38,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:38,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:38,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:38,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:38,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:38,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:38,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 04:11:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:38,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:38,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:38,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:38,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:38,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:38,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:38,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:38,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:38,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:38,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:38,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:38,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 04:11:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:38,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:38,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:38,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:38,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:38,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:38,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:38,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:38,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:38,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:38,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:38,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:38,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 04:11:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:38,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:38,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:38,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:38,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:38,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:38,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:38,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:38,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:38,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:38,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:38,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:38,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 04:11:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:38,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:38,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:38,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:38,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:38,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:38,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:38,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:38,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:38,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:38,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:38,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:38,717 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 14 proven. 144 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-29 04:11:38,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1478204211] [2020-10-29 04:11:38,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:38,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 04:11:38,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153201946] [2020-10-29 04:11:38,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 04:11:38,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:38,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 04:11:38,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2020-10-29 04:11:38,719 INFO L87 Difference]: Start difference. First operand 243 states and 289 transitions. Second operand 19 states. [2020-10-29 04:11:41,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:41,723 INFO L93 Difference]: Finished difference Result 350 states and 414 transitions. [2020-10-29 04:11:41,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-29 04:11:41,724 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 101 [2020-10-29 04:11:41,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:41,726 INFO L225 Difference]: With dead ends: 350 [2020-10-29 04:11:41,726 INFO L226 Difference]: Without dead ends: 347 [2020-10-29 04:11:41,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=413, Invalid=3747, Unknown=0, NotChecked=0, Total=4160 [2020-10-29 04:11:41,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-10-29 04:11:41,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 264. [2020-10-29 04:11:41,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-10-29 04:11:41,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 316 transitions. [2020-10-29 04:11:41,772 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 316 transitions. Word has length 101 [2020-10-29 04:11:41,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:41,772 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 316 transitions. [2020-10-29 04:11:41,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 04:11:41,773 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 316 transitions. [2020-10-29 04:11:41,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-29 04:11:41,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:41,775 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:41,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-29 04:11:41,775 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:41,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:41,776 INFO L82 PathProgramCache]: Analyzing trace with hash -794793210, now seen corresponding path program 7 times [2020-10-29 04:11:41,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:41,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755279795] [2020-10-29 04:11:41,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:41,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:42,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:42,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 04:11:42,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:42,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 626 [2020-10-29 04:11:42,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:42,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:42,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 04:11:42,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:11:42,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-29 04:11:42,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:42,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:42,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:42,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:42,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:42,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:42,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:11:42,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:42,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:42,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:42,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:42,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:42,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:42,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:42,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:42,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:42,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:42,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:42,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:11:42,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:42,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:42,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:42,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:42,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:42,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:42,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 04:11:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:42,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:42,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:42,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:42,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:42,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:42,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:42,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:42,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:42,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:42,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:42,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:42,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 04:11:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:42,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:42,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:42,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:42,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:42,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:42,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:42,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:42,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:42,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:42,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:42,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:42,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 04:11:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:42,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:42,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:42,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:42,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:42,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:42,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:42,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:42,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:42,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:42,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:42,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:42,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 04:11:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:42,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:42,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:42,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:42,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:42,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:42,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:42,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:42,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:42,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:42,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:42,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:42,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 04:11:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:42,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:42,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:42,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:42,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:42,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:42,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:42,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:42,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:42,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:42,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:42,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:42,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 04:11:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:42,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:42,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:42,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:42,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:42,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:42,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:42,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:42,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:42,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:42,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:42,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:42,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 04:11:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:42,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:42,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:42,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:42,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:42,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:42,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:42,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:42,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:42,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:42,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:42,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:42,820 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 21 proven. 137 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-29 04:11:42,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755279795] [2020-10-29 04:11:42,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:42,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-29 04:11:42,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361123477] [2020-10-29 04:11:42,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-29 04:11:42,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:42,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-29 04:11:42,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2020-10-29 04:11:42,824 INFO L87 Difference]: Start difference. First operand 264 states and 316 transitions. Second operand 17 states. [2020-10-29 04:11:45,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:45,384 INFO L93 Difference]: Finished difference Result 371 states and 438 transitions. [2020-10-29 04:11:45,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-29 04:11:45,385 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 101 [2020-10-29 04:11:45,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:45,388 INFO L225 Difference]: With dead ends: 371 [2020-10-29 04:11:45,388 INFO L226 Difference]: Without dead ends: 354 [2020-10-29 04:11:45,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=370, Invalid=2822, Unknown=0, NotChecked=0, Total=3192 [2020-10-29 04:11:45,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-10-29 04:11:45,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 269. [2020-10-29 04:11:45,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-10-29 04:11:45,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 322 transitions. [2020-10-29 04:11:45,445 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 322 transitions. Word has length 101 [2020-10-29 04:11:45,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:45,446 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 322 transitions. [2020-10-29 04:11:45,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-29 04:11:45,446 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 322 transitions. [2020-10-29 04:11:45,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-29 04:11:45,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:45,448 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:45,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-29 04:11:45,449 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:45,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:45,449 INFO L82 PathProgramCache]: Analyzing trace with hash -362469024, now seen corresponding path program 10 times [2020-10-29 04:11:45,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:45,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223651073] [2020-10-29 04:11:45,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:45,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:46,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:46,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 04:11:46,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:46,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 831 [2020-10-29 04:11:46,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:46,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:46,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 04:11:46,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:11:46,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 04:11:46,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:46,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:46,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:46,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:46,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:46,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:46,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:11:46,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:46,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:46,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:46,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:46,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:46,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:46,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:46,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:46,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:46,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:46,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:46,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:46,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:46,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:46,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:46,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:46,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:46,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:46,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:46,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 04:11:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:46,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:46,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:46,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:46,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:46,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:46,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:46,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:46,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:46,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:46,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:46,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 04:11:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:46,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:46,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:46,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:46,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:46,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:46,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:46,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:46,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:46,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:46,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:46,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:46,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 04:11:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:46,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:46,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:46,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:46,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:46,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:46,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:46,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:46,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:46,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:46,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:46,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:46,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 04:11:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:46,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:46,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:46,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:46,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:46,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:46,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:46,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:46,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:46,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:46,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:46,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:46,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 04:11:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:46,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:46,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:46,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:46,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:46,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:46,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:46,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:46,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:46,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:46,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:46,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:46,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 04:11:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:46,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:46,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:46,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:46,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:46,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:46,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:46,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:46,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:46,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:46,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:46,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:46,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 04:11:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:46,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:46,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:46,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:46,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:46,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:46,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:46,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:46,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:46,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:46,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:46,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:46,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-29 04:11:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:46,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:46,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:46,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:46,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:46,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:46,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:46,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:46,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:46,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:46,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:46,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:46,712 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 16 proven. 182 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-29 04:11:46,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223651073] [2020-10-29 04:11:46,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:46,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 04:11:46,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478013501] [2020-10-29 04:11:46,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 04:11:46,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:46,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 04:11:46,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-10-29 04:11:46,715 INFO L87 Difference]: Start difference. First operand 269 states and 322 transitions. Second operand 19 states. [2020-10-29 04:11:49,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:49,963 INFO L93 Difference]: Finished difference Result 376 states and 445 transitions. [2020-10-29 04:11:49,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-29 04:11:49,964 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 110 [2020-10-29 04:11:49,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:49,968 INFO L225 Difference]: With dead ends: 376 [2020-10-29 04:11:49,968 INFO L226 Difference]: Without dead ends: 373 [2020-10-29 04:11:49,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1047 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=399, Invalid=3891, Unknown=0, NotChecked=0, Total=4290 [2020-10-29 04:11:49,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2020-10-29 04:11:50,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 289. [2020-10-29 04:11:50,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-10-29 04:11:50,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 346 transitions. [2020-10-29 04:11:50,028 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 346 transitions. Word has length 110 [2020-10-29 04:11:50,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:50,029 INFO L481 AbstractCegarLoop]: Abstraction has 289 states and 346 transitions. [2020-10-29 04:11:50,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 04:11:50,029 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 346 transitions. [2020-10-29 04:11:50,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-29 04:11:50,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:50,031 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:50,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-29 04:11:50,032 INFO L429 AbstractCegarLoop]: === Iteration 34 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:50,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:50,032 INFO L82 PathProgramCache]: Analyzing trace with hash 2073257566, now seen corresponding path program 8 times [2020-10-29 04:11:50,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:50,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520719951] [2020-10-29 04:11:50,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:50,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:50,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:50,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 04:11:50,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:50,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 643 [2020-10-29 04:11:50,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:50,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:50,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 04:11:50,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:11:50,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-29 04:11:50,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:51,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:51,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:51,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:51,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:51,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:51,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:51,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:51,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:51,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:51,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:51,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:51,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:51,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:51,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:51,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:51,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:51,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:51,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:51,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:51,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:51,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:51,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:51,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 04:11:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:51,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:51,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:51,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:51,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:51,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:51,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:51,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:51,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:51,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:51,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:51,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:51,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 04:11:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:51,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:51,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:51,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:51,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:51,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:51,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:51,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:51,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:51,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:51,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:51,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:51,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 04:11:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:51,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:51,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:51,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:51,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:51,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:51,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:51,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:51,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:51,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:51,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:51,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:51,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 04:11:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:51,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:51,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:51,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:51,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:51,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:51,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:51,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:51,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:51,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:51,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:51,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:51,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 04:11:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:51,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:51,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:51,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:51,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:51,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:51,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:51,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:51,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:51,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:51,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:51,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:51,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 04:11:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:51,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:51,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:51,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:51,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:51,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:51,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:51,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:51,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:51,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:51,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:51,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:51,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 04:11:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:51,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:51,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:51,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:51,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:51,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:51,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:51,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:51,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:51,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:51,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:51,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:51,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-29 04:11:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:51,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:51,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:51,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:51,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:51,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:51,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:51,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:51,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:51,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:51,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:51,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:51,111 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 24 proven. 174 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-29 04:11:51,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520719951] [2020-10-29 04:11:51,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:51,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-29 04:11:51,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133626663] [2020-10-29 04:11:51,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-29 04:11:51,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:51,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-29 04:11:51,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-10-29 04:11:51,115 INFO L87 Difference]: Start difference. First operand 289 states and 346 transitions. Second operand 17 states. [2020-10-29 04:11:53,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:53,831 INFO L93 Difference]: Finished difference Result 397 states and 469 transitions. [2020-10-29 04:11:53,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-10-29 04:11:53,832 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 110 [2020-10-29 04:11:53,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:53,837 INFO L225 Difference]: With dead ends: 397 [2020-10-29 04:11:53,837 INFO L226 Difference]: Without dead ends: 380 [2020-10-29 04:11:53,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 838 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=357, Invalid=3065, Unknown=0, NotChecked=0, Total=3422 [2020-10-29 04:11:53,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-29 04:11:53,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 294. [2020-10-29 04:11:53,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-10-29 04:11:53,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 352 transitions. [2020-10-29 04:11:53,896 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 352 transitions. Word has length 110 [2020-10-29 04:11:53,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:53,896 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 352 transitions. [2020-10-29 04:11:53,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-29 04:11:53,897 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 352 transitions. [2020-10-29 04:11:53,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-29 04:11:53,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:53,899 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:53,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-29 04:11:53,899 INFO L429 AbstractCegarLoop]: === Iteration 35 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:53,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:53,900 INFO L82 PathProgramCache]: Analyzing trace with hash 902627782, now seen corresponding path program 11 times [2020-10-29 04:11:53,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:53,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490181920] [2020-10-29 04:11:53,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:53,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:54,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:55,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:55,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-29 04:11:55,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:11:55,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1657 [2020-10-29 04:11:55,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:55,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:55,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 04:11:55,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:11:55,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-29 04:11:55,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:55,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:55,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:55,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:55,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:55,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:55,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:55,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:11:55,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:55,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:55,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:55,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:55,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:55,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:55,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:55,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:55,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:55,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:55,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:55,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:55,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:11:55,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 04:11:55,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:55,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:55,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:55,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:55,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:55,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:55,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 04:11:55,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:55,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:55,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:55,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:55,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:55,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:55,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:55,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:55,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:55,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:55,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:55,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:55,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 04:11:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:55,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:55,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:55,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:55,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:55,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:55,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:56,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:56,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:56,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:56,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:56,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:56,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 04:11:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:56,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:56,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:56,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:56,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:56,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:56,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:56,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:56,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:56,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:56,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:56,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:56,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 04:11:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:56,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:56,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:56,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:56,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:56,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:56,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:56,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:56,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:56,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:56,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:56,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:56,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 04:11:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:56,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:56,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:56,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:56,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:56,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:56,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:56,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:56,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:56,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:56,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:56,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:56,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 04:11:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:56,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:56,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:56,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:56,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:56,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:56,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:56,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:56,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:56,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:56,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:56,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:56,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 04:11:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:56,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:56,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:56,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:56,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:56,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:56,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:56,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:56,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:56,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-29 04:11:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:56,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:56,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:56,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:56,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:56,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:56,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:56,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:56,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:56,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:56,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:56,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:56,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-29 04:11:56,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:56,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:56,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:56,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:56,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:56,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:56,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:56,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:56,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:56,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:56,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:56,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:56,091 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 153 proven. 90 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-29 04:11:56,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490181920] [2020-10-29 04:11:56,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:56,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 04:11:56,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579319367] [2020-10-29 04:11:56,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 04:11:56,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:56,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 04:11:56,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2020-10-29 04:11:56,094 INFO L87 Difference]: Start difference. First operand 294 states and 352 transitions. Second operand 19 states. [2020-10-29 04:11:57,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:57,452 INFO L93 Difference]: Finished difference Result 563 states and 676 transitions. [2020-10-29 04:11:57,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 04:11:57,453 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 119 [2020-10-29 04:11:57,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:57,456 INFO L225 Difference]: With dead ends: 563 [2020-10-29 04:11:57,456 INFO L226 Difference]: Without dead ends: 330 [2020-10-29 04:11:57,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=265, Invalid=1067, Unknown=0, NotChecked=0, Total=1332 [2020-10-29 04:11:57,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-10-29 04:11:57,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 314. [2020-10-29 04:11:57,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2020-10-29 04:11:57,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 372 transitions. [2020-10-29 04:11:57,521 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 372 transitions. Word has length 119 [2020-10-29 04:11:57,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:57,522 INFO L481 AbstractCegarLoop]: Abstraction has 314 states and 372 transitions. [2020-10-29 04:11:57,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 04:11:57,522 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 372 transitions. [2020-10-29 04:11:57,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-29 04:11:57,524 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:57,524 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:57,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-29 04:11:57,525 INFO L429 AbstractCegarLoop]: === Iteration 36 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:57,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:57,525 INFO L82 PathProgramCache]: Analyzing trace with hash 249600588, now seen corresponding path program 12 times [2020-10-29 04:11:57,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:57,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979944516] [2020-10-29 04:11:57,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:57,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:58,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:58,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-29 04:11:58,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:58,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1322 [2020-10-29 04:11:58,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:58,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:58,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 04:11:58,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:11:58,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-29 04:11:58,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:59,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:59,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:59,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:59,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:59,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:59,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:59,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:59,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:59,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:59,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:59,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:59,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:59,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:11:59,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:59,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:59,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:59,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:59,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:59,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:59,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:59,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:59,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:59,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:59,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:59,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:59,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 04:11:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:59,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:59,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:59,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:59,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:59,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:59,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:59,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:59,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:59,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:59,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:59,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:59,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 04:11:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:59,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:59,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:59,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:59,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:59,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:59,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:59,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:59,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:59,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:59,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:59,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:59,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 04:11:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:59,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:59,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:59,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:59,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:59,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:11:59,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:59,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:59,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:59,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:59,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:59,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:59,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 04:11:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:59,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:59,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:59,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:59,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:59,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:59,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:59,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:59,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:59,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:59,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:59,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:59,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 04:11:59,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:59,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:59,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:59,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:59,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:59,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:59,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:59,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:59,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:59,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:59,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:59,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:59,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 04:11:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:59,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:59,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:59,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:59,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:59,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:59,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:59,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:59,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:59,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:59,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:59,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:59,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 04:11:59,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:59,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:59,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:59,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:59,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:59,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:59,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:59,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:59,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:59,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:59,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:59,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:59,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-29 04:11:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:59,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:59,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:59,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:59,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:59,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:59,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:59,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:59,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:59,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:59,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:59,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:59,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-29 04:11:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:59,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:59,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:59,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:59,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:59,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:11:59,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:59,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:59,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:59,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:59,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:59,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:59,423 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 18 proven. 241 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-29 04:11:59,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1979944516] [2020-10-29 04:11:59,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:59,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 04:11:59,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388627995] [2020-10-29 04:11:59,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 04:11:59,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:59,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 04:11:59,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2020-10-29 04:11:59,425 INFO L87 Difference]: Start difference. First operand 314 states and 372 transitions. Second operand 22 states. [2020-10-29 04:12:03,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:12:03,789 INFO L93 Difference]: Finished difference Result 437 states and 517 transitions. [2020-10-29 04:12:03,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2020-10-29 04:12:03,790 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 124 [2020-10-29 04:12:03,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:12:03,793 INFO L225 Difference]: With dead ends: 437 [2020-10-29 04:12:03,793 INFO L226 Difference]: Without dead ends: 434 [2020-10-29 04:12:03,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1943 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=597, Invalid=6209, Unknown=0, NotChecked=0, Total=6806 [2020-10-29 04:12:03,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-10-29 04:12:03,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 336. [2020-10-29 04:12:03,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-10-29 04:12:03,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 402 transitions. [2020-10-29 04:12:03,874 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 402 transitions. Word has length 124 [2020-10-29 04:12:03,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:12:03,874 INFO L481 AbstractCegarLoop]: Abstraction has 336 states and 402 transitions. [2020-10-29 04:12:03,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 04:12:03,874 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 402 transitions. [2020-10-29 04:12:03,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-29 04:12:03,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:12:03,877 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:12:03,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-29 04:12:03,877 INFO L429 AbstractCegarLoop]: === Iteration 37 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:12:03,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:12:03,877 INFO L82 PathProgramCache]: Analyzing trace with hash 139141450, now seen corresponding path program 9 times [2020-10-29 04:12:03,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:12:03,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1045336669] [2020-10-29 04:12:03,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:12:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:03,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:04,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:04,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-29 04:12:04,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:04,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 994 [2020-10-29 04:12:04,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:04,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:04,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 04:12:04,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:12:04,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-29 04:12:04,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:05,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:12:05,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:05,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:05,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:05,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:12:05,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:05,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:12:05,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:05,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:05,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:05,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:05,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:05,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:05,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:12:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:05,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:05,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:05,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:05,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:05,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:05,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:05,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:05,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:05,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:05,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:05,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:05,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 04:12:05,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:05,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:05,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:05,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:05,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:05,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:05,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:05,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:05,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:05,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:05,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:05,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:05,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 04:12:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:05,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:05,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:05,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:05,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:05,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:05,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:05,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:05,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:05,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:05,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:05,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:05,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 04:12:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:05,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:05,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:05,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:05,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:05,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:05,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:05,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:05,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:05,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:05,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:05,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:05,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 04:12:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:05,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:05,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:05,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:05,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:05,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:05,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:05,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:05,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:05,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:05,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:05,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:05,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 04:12:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:05,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:05,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:05,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:05,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:05,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:05,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:05,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:05,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:05,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:05,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:05,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:05,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 04:12:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:05,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:05,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:05,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:05,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:05,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:05,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:05,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:05,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:05,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:05,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:05,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:05,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 04:12:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:05,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:05,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:05,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:05,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:05,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:05,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:05,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:05,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:05,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:05,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:05,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:05,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-29 04:12:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:05,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:05,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:05,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:05,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:05,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:05,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:05,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:05,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:05,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:05,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:05,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:05,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-29 04:12:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:05,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:05,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:05,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:05,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:05,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:05,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:05,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:05,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:05,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:05,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:05,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:05,421 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 27 proven. 232 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-29 04:12:05,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1045336669] [2020-10-29 04:12:05,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:12:05,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-29 04:12:05,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968532301] [2020-10-29 04:12:05,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-29 04:12:05,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:12:05,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-29 04:12:05,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2020-10-29 04:12:05,426 INFO L87 Difference]: Start difference. First operand 336 states and 402 transitions. Second operand 20 states. [2020-10-29 04:12:09,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:12:09,603 INFO L93 Difference]: Finished difference Result 460 states and 543 transitions. [2020-10-29 04:12:09,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2020-10-29 04:12:09,604 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 124 [2020-10-29 04:12:09,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:12:09,609 INFO L225 Difference]: With dead ends: 460 [2020-10-29 04:12:09,610 INFO L226 Difference]: Without dead ends: 443 [2020-10-29 04:12:09,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1674 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=601, Invalid=5251, Unknown=0, NotChecked=0, Total=5852 [2020-10-29 04:12:09,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-10-29 04:12:09,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 341. [2020-10-29 04:12:09,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-10-29 04:12:09,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 408 transitions. [2020-10-29 04:12:09,690 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 408 transitions. Word has length 124 [2020-10-29 04:12:09,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:12:09,691 INFO L481 AbstractCegarLoop]: Abstraction has 341 states and 408 transitions. [2020-10-29 04:12:09,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-29 04:12:09,691 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 408 transitions. [2020-10-29 04:12:09,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-29 04:12:09,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:12:09,693 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:12:09,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-29 04:12:09,693 INFO L429 AbstractCegarLoop]: === Iteration 38 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:12:09,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:12:09,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1088674394, now seen corresponding path program 13 times [2020-10-29 04:12:09,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:12:09,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310322110] [2020-10-29 04:12:09,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:12:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:09,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:10,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:10,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-29 04:12:10,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:10,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1013 [2020-10-29 04:12:10,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:10,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:10,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 04:12:10,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:12:10,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-29 04:12:10,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:11,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:12:11,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:11,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:11,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:11,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:12:11,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:11,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:11,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:11,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:11,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:11,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:11,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:11,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:11,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:12:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:11,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:11,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:11,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:11,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:11,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:11,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:11,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:11,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:11,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:11,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:11,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:11,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 04:12:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:11,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:11,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:11,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:11,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:11,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:11,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:11,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:11,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:11,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:11,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:11,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:11,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 04:12:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:11,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:11,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:11,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:11,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:11,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:11,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:11,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:11,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:11,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:11,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:11,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:11,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 04:12:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:11,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:11,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:11,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:11,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:11,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:11,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:11,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:11,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:11,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:11,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:11,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:11,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 04:12:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:11,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:11,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:11,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:11,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:11,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:11,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:11,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:11,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:11,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:11,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:11,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:11,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 04:12:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:11,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:11,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:11,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:11,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:11,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:11,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:11,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:11,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:11,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 04:12:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:11,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:11,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:11,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:11,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:11,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:11,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:11,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:11,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:11,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:11,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:11,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:11,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 04:12:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:11,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:11,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:11,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:11,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:11,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:11,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:11,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:11,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:11,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:11,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:11,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:11,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-29 04:12:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:11,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:11,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:11,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:11,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:11,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:11,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:11,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:11,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:11,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-29 04:12:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:11,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:11,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:11,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:11,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:11,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:11,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:11,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:11,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:11,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:11,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:11,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:11,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-29 04:12:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:11,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:11,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:11,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:11,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:11,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:11,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:11,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:11,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:11,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:11,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:11,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:11,336 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 20 proven. 289 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-29 04:12:11,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310322110] [2020-10-29 04:12:11,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:12:11,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-29 04:12:11,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539455158] [2020-10-29 04:12:11,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-29 04:12:11,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:12:11,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-29 04:12:11,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=460, Unknown=0, NotChecked=0, Total=506 [2020-10-29 04:12:11,338 INFO L87 Difference]: Start difference. First operand 341 states and 408 transitions. Second operand 23 states. [2020-10-29 04:12:16,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:12:16,297 INFO L93 Difference]: Finished difference Result 466 states and 553 transitions. [2020-10-29 04:12:16,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-10-29 04:12:16,298 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 133 [2020-10-29 04:12:16,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:12:16,301 INFO L225 Difference]: With dead ends: 466 [2020-10-29 04:12:16,301 INFO L226 Difference]: Without dead ends: 463 [2020-10-29 04:12:16,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2151 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=635, Invalid=7021, Unknown=0, NotChecked=0, Total=7656 [2020-10-29 04:12:16,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2020-10-29 04:12:16,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 362. [2020-10-29 04:12:16,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-10-29 04:12:16,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 435 transitions. [2020-10-29 04:12:16,382 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 435 transitions. Word has length 133 [2020-10-29 04:12:16,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:12:16,382 INFO L481 AbstractCegarLoop]: Abstraction has 362 states and 435 transitions. [2020-10-29 04:12:16,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-29 04:12:16,383 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 435 transitions. [2020-10-29 04:12:16,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-29 04:12:16,384 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:12:16,385 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:12:16,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-29 04:12:16,385 INFO L429 AbstractCegarLoop]: === Iteration 39 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:12:16,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:12:16,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1561820314, now seen corresponding path program 10 times [2020-10-29 04:12:16,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:12:16,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715635461] [2020-10-29 04:12:16,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:12:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:16,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:17,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:17,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-29 04:12:17,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:17,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 818 [2020-10-29 04:12:17,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:17,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:17,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 04:12:17,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:12:17,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-29 04:12:17,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:17,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:12:17,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:17,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:17,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:17,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:12:17,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:17,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:17,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:17,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:17,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:17,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:17,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:17,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:17,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:12:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:17,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:17,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:17,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:17,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:17,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:17,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:17,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:17,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:17,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:17,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:17,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:17,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 04:12:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:17,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:17,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:17,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:17,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:17,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:17,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:17,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:17,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:17,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:17,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:17,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:17,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 04:12:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:17,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:17,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:17,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:17,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:17,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:17,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:17,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:17,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:17,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:17,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:17,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:17,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 04:12:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:17,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:17,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:17,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:17,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:17,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:17,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:17,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:17,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:17,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:17,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:17,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:17,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 04:12:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:17,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:17,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:17,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:17,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:17,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:17,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:17,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:17,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:17,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:17,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:17,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:17,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 04:12:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:17,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:17,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:17,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:17,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:17,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:17,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:17,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:17,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:17,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:17,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:17,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:17,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 04:12:17,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:17,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:17,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:17,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:17,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:17,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:17,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:17,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:17,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:17,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:17,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:17,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:17,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 04:12:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:17,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:17,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:17,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:17,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:17,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:17,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:17,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:17,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:17,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:17,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:17,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:17,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-29 04:12:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:17,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:17,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:17,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:17,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:17,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:17,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:17,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:17,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:17,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:17,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:17,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:17,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-29 04:12:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:17,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:17,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:17,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:17,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:17,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:17,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:17,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:17,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:17,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:17,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:17,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:17,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-29 04:12:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:17,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:17,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:17,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:17,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:17,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:17,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:17,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:17,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:17,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:17,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:17,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:17,763 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 30 proven. 279 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-29 04:12:17,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715635461] [2020-10-29 04:12:17,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:12:17,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-29 04:12:17,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521794586] [2020-10-29 04:12:17,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 04:12:17,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:12:17,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 04:12:17,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=378, Unknown=0, NotChecked=0, Total=420 [2020-10-29 04:12:17,765 INFO L87 Difference]: Start difference. First operand 362 states and 435 transitions. Second operand 21 states. [2020-10-29 04:12:22,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:12:22,250 INFO L93 Difference]: Finished difference Result 488 states and 578 transitions. [2020-10-29 04:12:22,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-10-29 04:12:22,252 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 133 [2020-10-29 04:12:22,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:12:22,255 INFO L225 Difference]: With dead ends: 488 [2020-10-29 04:12:22,255 INFO L226 Difference]: Without dead ends: 471 [2020-10-29 04:12:22,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1783 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=589, Invalid=5731, Unknown=0, NotChecked=0, Total=6320 [2020-10-29 04:12:22,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-10-29 04:12:22,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 367. [2020-10-29 04:12:22,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2020-10-29 04:12:22,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 441 transitions. [2020-10-29 04:12:22,327 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 441 transitions. Word has length 133 [2020-10-29 04:12:22,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:12:22,328 INFO L481 AbstractCegarLoop]: Abstraction has 367 states and 441 transitions. [2020-10-29 04:12:22,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-29 04:12:22,328 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 441 transitions. [2020-10-29 04:12:22,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-29 04:12:22,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:12:22,330 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 11, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:12:22,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-29 04:12:22,330 INFO L429 AbstractCegarLoop]: === Iteration 40 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:12:22,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:12:22,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1519176204, now seen corresponding path program 14 times [2020-10-29 04:12:22,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:12:22,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [956385946] [2020-10-29 04:12:22,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:12:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:22,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:23,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:23,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 04:12:23,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:23,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1020 [2020-10-29 04:12:23,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:23,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:23,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 04:12:23,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:12:23,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-29 04:12:23,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:23,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:12:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:23,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:23,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:23,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:12:23,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:23,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:23,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:23,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:23,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:23,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:23,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:23,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:23,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:12:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:23,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:23,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:23,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:23,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:23,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:23,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:23,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:23,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:23,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:23,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:23,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:23,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 04:12:23,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:23,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:23,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:23,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:23,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:23,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:23,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:23,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:23,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:23,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:23,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:23,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:23,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 04:12:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:24,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:24,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:24,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:24,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:24,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:24,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:24,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:24,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:24,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:24,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:24,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:24,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 04:12:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:24,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:24,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:24,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:24,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:24,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:12:24,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:24,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:24,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:24,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:24,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:24,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:24,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 04:12:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:24,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:24,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:24,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:24,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:24,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:24,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:24,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:24,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:24,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:24,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:24,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:24,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 04:12:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:24,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:24,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:24,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:24,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:24,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:12:24,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:24,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:24,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:24,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:24,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:24,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:24,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 04:12:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:24,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:24,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:24,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:24,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:24,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:24,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:24,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:24,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:24,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:24,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:24,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:24,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 04:12:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:24,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:24,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:24,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:24,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:24,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:24,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:24,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:24,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:24,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:24,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:24,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:24,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-29 04:12:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:24,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:24,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:24,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:24,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:24,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:24,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:24,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:24,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:24,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:24,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:24,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:24,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-29 04:12:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:24,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:24,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:24,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:24,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:24,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:24,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:24,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:24,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:24,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:24,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:24,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:24,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-29 04:12:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:24,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:24,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:24,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:24,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:24,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:12:24,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:24,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:24,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:24,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:24,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:24,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:24,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-29 04:12:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:24,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:24,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:24,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:24,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:24,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:24,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:24,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:24,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:24,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:24,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:24,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:24,120 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 22 proven. 342 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-29 04:12:24,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [956385946] [2020-10-29 04:12:24,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:12:24,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-29 04:12:24,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600038526] [2020-10-29 04:12:24,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-29 04:12:24,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:12:24,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-29 04:12:24,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-10-29 04:12:24,122 INFO L87 Difference]: Start difference. First operand 367 states and 441 transitions. Second operand 23 states. [2020-10-29 04:12:29,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:12:29,629 INFO L93 Difference]: Finished difference Result 492 states and 584 transitions. [2020-10-29 04:12:29,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2020-10-29 04:12:29,630 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 142 [2020-10-29 04:12:29,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:12:29,634 INFO L225 Difference]: With dead ends: 492 [2020-10-29 04:12:29,634 INFO L226 Difference]: Without dead ends: 489 [2020-10-29 04:12:29,635 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2165 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=621, Invalid=7389, Unknown=0, NotChecked=0, Total=8010 [2020-10-29 04:12:29,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2020-10-29 04:12:29,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 387. [2020-10-29 04:12:29,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2020-10-29 04:12:29,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 465 transitions. [2020-10-29 04:12:29,724 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 465 transitions. Word has length 142 [2020-10-29 04:12:29,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:12:29,724 INFO L481 AbstractCegarLoop]: Abstraction has 387 states and 465 transitions. [2020-10-29 04:12:29,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-29 04:12:29,724 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 465 transitions. [2020-10-29 04:12:29,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-29 04:12:29,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:12:29,726 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:12:29,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-29 04:12:29,727 INFO L429 AbstractCegarLoop]: === Iteration 41 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:12:29,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:12:29,727 INFO L82 PathProgramCache]: Analyzing trace with hash 536140618, now seen corresponding path program 11 times [2020-10-29 04:12:29,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:12:29,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1966827156] [2020-10-29 04:12:29,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:12:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:29,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:30,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:30,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 04:12:30,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:30,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 792 [2020-10-29 04:12:30,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:30,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:30,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 04:12:30,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:12:30,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-29 04:12:30,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:31,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:12:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:31,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:31,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:31,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:12:31,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:31,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:31,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:31,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:31,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:31,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:31,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:31,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:31,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:12:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:31,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:31,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:31,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:31,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:31,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:31,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:31,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:31,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:31,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:31,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:31,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:31,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 04:12:31,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:31,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:31,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:31,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:31,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:31,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:31,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:31,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:31,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:31,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:31,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:31,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:31,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 04:12:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:31,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:31,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:31,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:31,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:31,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:31,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:31,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:31,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:31,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:31,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:31,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:31,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 04:12:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:31,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:31,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:31,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:31,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:31,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:31,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:31,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:31,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:31,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:31,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:31,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:31,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 04:12:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:31,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:31,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:31,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:31,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:31,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:31,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:31,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:31,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:31,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:31,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:31,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:31,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 04:12:31,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:31,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:31,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:31,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:31,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:31,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:31,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:31,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:31,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:31,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:31,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:31,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:31,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 04:12:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:31,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:31,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:31,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:31,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:31,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:31,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:31,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:31,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:31,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:31,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:31,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:31,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 04:12:31,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:31,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:31,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:31,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:31,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:31,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:31,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:31,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:31,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:31,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:31,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:31,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:31,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-29 04:12:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:31,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:31,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:31,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:31,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:31,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:31,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:31,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:31,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:31,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:31,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:31,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:31,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-29 04:12:31,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:31,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:31,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:31,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:31,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:31,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:31,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:31,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:31,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:31,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:31,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:31,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:31,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-29 04:12:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:31,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:31,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:31,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:31,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:31,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:31,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:31,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:31,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:31,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:31,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:31,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 04:12:31,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-29 04:12:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:31,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:31,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:31,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:31,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:31,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:31,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:31,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:31,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:31,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:31,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:31,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:31,178 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 33 proven. 331 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-29 04:12:31,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1966827156] [2020-10-29 04:12:31,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:12:31,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-29 04:12:31,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766303120] [2020-10-29 04:12:31,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 04:12:31,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:12:31,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 04:12:31,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-29 04:12:31,180 INFO L87 Difference]: Start difference. First operand 387 states and 465 transitions. Second operand 21 states. [2020-10-29 04:12:35,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:12:35,885 INFO L93 Difference]: Finished difference Result 514 states and 609 transitions. [2020-10-29 04:12:35,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-10-29 04:12:35,887 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 142 [2020-10-29 04:12:35,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:12:35,890 INFO L225 Difference]: With dead ends: 514 [2020-10-29 04:12:35,891 INFO L226 Difference]: Without dead ends: 497 [2020-10-29 04:12:35,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1801 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=576, Invalid=6066, Unknown=0, NotChecked=0, Total=6642 [2020-10-29 04:12:35,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-10-29 04:12:35,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 392. [2020-10-29 04:12:35,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 392 states. [2020-10-29 04:12:35,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 471 transitions. [2020-10-29 04:12:35,974 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 471 transitions. Word has length 142 [2020-10-29 04:12:35,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:12:35,975 INFO L481 AbstractCegarLoop]: Abstraction has 392 states and 471 transitions. [2020-10-29 04:12:35,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-29 04:12:35,975 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 471 transitions. [2020-10-29 04:12:35,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-29 04:12:35,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:12:35,977 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:12:35,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-29 04:12:35,977 INFO L429 AbstractCegarLoop]: === Iteration 42 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:12:35,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:12:35,977 INFO L82 PathProgramCache]: Analyzing trace with hash 160522906, now seen corresponding path program 15 times [2020-10-29 04:12:35,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:12:35,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327207912] [2020-10-29 04:12:35,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:12:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:36,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:36,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:38,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:38,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-29 04:12:38,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:12:38,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2297 [2020-10-29 04:12:38,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:38,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 04:12:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:12:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-29 04:12:38,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:38,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:12:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:38,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:38,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:38,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:12:38,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:38,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:38,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:38,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:38,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:38,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:38,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:38,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:38,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:12:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:38,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:38,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:38,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:38,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:38,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:12:38,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:12:38,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:38,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:38,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:38,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:38,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:38,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:38,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 04:12:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:38,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:38,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:38,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:38,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:38,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:38,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:38,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:38,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:38,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:38,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:38,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:38,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 04:12:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:38,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:38,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:38,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:38,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:38,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:38,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:38,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:38,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:38,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:38,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:38,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:38,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 04:12:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:38,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:38,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:38,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:38,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:38,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:38,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:38,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:38,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:38,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:38,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:38,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:38,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 04:12:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:38,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:38,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:38,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:38,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:38,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:38,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:38,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:38,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:38,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:38,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:38,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:38,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 04:12:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:38,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:38,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:38,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:38,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:38,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:38,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:38,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:38,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:38,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:38,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:38,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:38,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 04:12:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:38,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:38,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:38,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:38,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:38,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:38,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:38,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:38,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:38,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:38,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:38,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:38,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 04:12:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:38,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:38,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:38,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:38,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:38,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:38,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:38,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:38,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:38,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:38,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:38,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:38,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-29 04:12:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:38,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:38,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:38,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:38,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:38,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:38,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:38,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:38,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:38,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:38,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:38,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:38,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-29 04:12:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:38,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:38,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:38,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:38,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:38,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:38,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:38,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:38,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:38,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:38,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:38,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:38,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-29 04:12:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:38,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:38,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:38,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:38,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:38,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:38,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:38,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:38,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:38,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:38,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:38,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:38,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-29 04:12:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:38,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:38,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:38,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:38,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:38,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:38,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:38,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:38,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:38,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:38,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:38,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:38,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-29 04:12:38,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:38,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:38,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:38,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:38,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:38,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:38,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:38,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:38,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:38,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:38,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:38,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:39,000 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 390 proven. 34 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-29 04:12:39,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327207912] [2020-10-29 04:12:39,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:12:39,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-29 04:12:39,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882400019] [2020-10-29 04:12:39,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-29 04:12:39,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:12:39,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-29 04:12:39,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-29 04:12:39,002 INFO L87 Difference]: Start difference. First operand 392 states and 471 transitions. Second operand 23 states. [2020-10-29 04:12:41,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:12:41,109 INFO L93 Difference]: Finished difference Result 739 states and 894 transitions. [2020-10-29 04:12:41,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 04:12:41,110 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 151 [2020-10-29 04:12:41,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:12:41,114 INFO L225 Difference]: With dead ends: 739 [2020-10-29 04:12:41,114 INFO L226 Difference]: Without dead ends: 428 [2020-10-29 04:12:41,116 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=415, Invalid=1565, Unknown=0, NotChecked=0, Total=1980 [2020-10-29 04:12:41,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-10-29 04:12:41,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 412. [2020-10-29 04:12:41,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-10-29 04:12:41,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 491 transitions. [2020-10-29 04:12:41,210 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 491 transitions. Word has length 151 [2020-10-29 04:12:41,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:12:41,210 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 491 transitions. [2020-10-29 04:12:41,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-29 04:12:41,211 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 491 transitions. [2020-10-29 04:12:41,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-29 04:12:41,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:12:41,213 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 12, 12, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:12:41,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-29 04:12:41,213 INFO L429 AbstractCegarLoop]: === Iteration 43 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:12:41,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:12:41,214 INFO L82 PathProgramCache]: Analyzing trace with hash -852401376, now seen corresponding path program 16 times [2020-10-29 04:12:41,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:12:41,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [285271517] [2020-10-29 04:12:41,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:12:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:41,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:42,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:42,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-29 04:12:42,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:42,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 992 [2020-10-29 04:12:42,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:42,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:42,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 04:12:42,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:12:42,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-29 04:12:42,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:42,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:12:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:42,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:42,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:42,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:12:42,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:42,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:42,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:42,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:42,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:42,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:42,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:42,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:42,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:12:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:42,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:42,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:42,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:42,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:42,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:42,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:42,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:42,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:42,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:42,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:42,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:42,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 04:12:42,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:42,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:42,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:42,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:42,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:42,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:42,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:42,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:42,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:42,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:42,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:42,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:42,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 04:12:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:42,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:42,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:42,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:42,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:42,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:42,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:42,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:42,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:42,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:42,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:42,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:42,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 04:12:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:42,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:42,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:42,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:42,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:42,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:42,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:42,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:42,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:42,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:42,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:42,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:42,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 04:12:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:42,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:42,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:42,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:42,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:42,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:42,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:42,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:42,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:42,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 04:12:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:42,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:42,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:42,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:42,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:42,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:42,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:42,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:42,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:42,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:42,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:42,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:42,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 04:12:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:42,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:42,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:42,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:42,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:42,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:42,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:42,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:42,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:42,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:42,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:42,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:42,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 04:12:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:42,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:42,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:42,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:42,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:42,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:42,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:42,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:42,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:42,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:42,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:42,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:42,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 04:12:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:42,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:42,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:42,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:42,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:42,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:42,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:42,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:42,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:42,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:42,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:42,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:42,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-29 04:12:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:42,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:42,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:42,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:42,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:42,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:42,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:42,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:42,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:42,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:42,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:43,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:43,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 04:12:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:43,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:43,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:43,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:43,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:43,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:43,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:43,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:43,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:43,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:43,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:43,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:43,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-29 04:12:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:43,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:43,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:43,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:43,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:43,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:43,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:43,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:43,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:43,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:43,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:43,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:43,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-29 04:12:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:43,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:43,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:43,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:43,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:43,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:43,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:43,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:43,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:43,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:43,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:43,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:43,068 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 24 proven. 421 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-29 04:12:43,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [285271517] [2020-10-29 04:12:43,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:12:43,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-29 04:12:43,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617940354] [2020-10-29 04:12:43,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-29 04:12:43,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:12:43,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-29 04:12:43,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=598, Unknown=0, NotChecked=0, Total=650 [2020-10-29 04:12:43,070 INFO L87 Difference]: Start difference. First operand 412 states and 491 transitions. Second operand 26 states. [2020-10-29 04:12:50,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:12:50,537 INFO L93 Difference]: Finished difference Result 553 states and 656 transitions. [2020-10-29 04:12:50,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2020-10-29 04:12:50,538 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 156 [2020-10-29 04:12:50,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:12:50,541 INFO L225 Difference]: With dead ends: 553 [2020-10-29 04:12:50,541 INFO L226 Difference]: Without dead ends: 550 [2020-10-29 04:12:50,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3248 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=828, Invalid=10302, Unknown=0, NotChecked=0, Total=11130 [2020-10-29 04:12:50,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-10-29 04:12:50,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 434. [2020-10-29 04:12:50,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2020-10-29 04:12:50,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 521 transitions. [2020-10-29 04:12:50,645 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 521 transitions. Word has length 156 [2020-10-29 04:12:50,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:12:50,645 INFO L481 AbstractCegarLoop]: Abstraction has 434 states and 521 transitions. [2020-10-29 04:12:50,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-29 04:12:50,646 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 521 transitions. [2020-10-29 04:12:50,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-29 04:12:50,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:12:50,648 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:12:50,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-29 04:12:50,649 INFO L429 AbstractCegarLoop]: === Iteration 44 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:12:50,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:12:50,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1321362910, now seen corresponding path program 12 times [2020-10-29 04:12:50,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:12:50,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786794508] [2020-10-29 04:12:50,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:12:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:50,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:51,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:51,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-29 04:12:51,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:51,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1090 [2020-10-29 04:12:51,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:51,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:51,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 04:12:51,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:12:51,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-29 04:12:51,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:52,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:12:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:52,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:52,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:52,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:12:52,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:52,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:52,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:52,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:52,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:52,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:52,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:52,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:52,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:12:52,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:52,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:52,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:52,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:52,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:52,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:52,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:52,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:52,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:52,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:52,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:52,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:52,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 04:12:52,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:52,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:52,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:52,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:52,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:52,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:12:52,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:52,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:52,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:52,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:52,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:52,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:52,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 04:12:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:52,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:52,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:52,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:52,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:52,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:52,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:52,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:52,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:52,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:52,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:52,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:52,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 04:12:52,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:52,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:52,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:52,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:52,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:52,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:52,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:52,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:52,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:52,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:52,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:52,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:52,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 04:12:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:52,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:52,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:52,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:52,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:52,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:52,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:52,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:52,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:52,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:52,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:52,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:52,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 04:12:52,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:52,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:52,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:52,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:52,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:52,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:52,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:52,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:52,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:52,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:52,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:52,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:52,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 04:12:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:52,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:52,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:52,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:52,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:52,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:52,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:52,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:52,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:52,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:52,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:52,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:52,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 04:12:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:52,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:52,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:52,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:52,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:52,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:52,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:52,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:52,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:52,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:52,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:52,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:52,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 04:12:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:52,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:52,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:52,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:52,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:52,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:52,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:52,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:52,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:52,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:52,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:52,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:52,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-29 04:12:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:52,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:52,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:52,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:52,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:52,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:52,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:52,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:52,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:52,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:52,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:52,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:52,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 04:12:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:52,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:52,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:52,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:52,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:52,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:52,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:52,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:52,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:52,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:52,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:52,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:52,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-29 04:12:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:52,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:52,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:52,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:52,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:52,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:52,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:52,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:52,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:52,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:52,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:52,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:52,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-29 04:12:52,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:52,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:52,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:52,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:52,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:52,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:52,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:52,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:52,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:52,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:52,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:52,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:52,608 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 36 proven. 409 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-29 04:12:52,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786794508] [2020-10-29 04:12:52,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:12:52,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-29 04:12:52,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713410759] [2020-10-29 04:12:52,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-29 04:12:52,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:12:52,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-29 04:12:52,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=504, Unknown=0, NotChecked=0, Total=552 [2020-10-29 04:12:52,610 INFO L87 Difference]: Start difference. First operand 434 states and 521 transitions. Second operand 24 states. [2020-10-29 04:12:59,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:12:59,980 INFO L93 Difference]: Finished difference Result 576 states and 682 transitions. [2020-10-29 04:12:59,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2020-10-29 04:12:59,982 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 156 [2020-10-29 04:12:59,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:12:59,985 INFO L225 Difference]: With dead ends: 576 [2020-10-29 04:12:59,985 INFO L226 Difference]: Without dead ends: 559 [2020-10-29 04:12:59,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2804 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=831, Invalid=8675, Unknown=0, NotChecked=0, Total=9506 [2020-10-29 04:12:59,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-10-29 04:13:00,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 439. [2020-10-29 04:13:00,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2020-10-29 04:13:00,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 527 transitions. [2020-10-29 04:13:00,065 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 527 transitions. Word has length 156 [2020-10-29 04:13:00,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:13:00,065 INFO L481 AbstractCegarLoop]: Abstraction has 439 states and 527 transitions. [2020-10-29 04:13:00,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-29 04:13:00,066 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 527 transitions. [2020-10-29 04:13:00,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-29 04:13:00,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:13:00,068 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:13:00,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-29 04:13:00,068 INFO L429 AbstractCegarLoop]: === Iteration 45 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:13:00,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:13:00,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1237696518, now seen corresponding path program 17 times [2020-10-29 04:13:00,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:13:00,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506636380] [2020-10-29 04:13:00,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:13:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:00,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:01,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:01,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-29 04:13:01,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:01,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1062 [2020-10-29 04:13:01,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:01,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:01,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 04:13:01,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:13:01,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 04:13:01,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:01,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:13:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:01,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:01,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:01,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:13:01,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:01,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:01,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:01,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:01,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:13:01,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:01,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:13:01,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:01,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:13:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:01,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:01,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:01,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:01,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:01,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:01,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:01,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:01,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:13:01,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:01,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:13:01,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:01,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 04:13:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:01,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:01,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:01,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:01,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:01,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:01,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:01,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:01,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:01,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:01,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:01,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:01,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 04:13:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:01,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:01,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:01,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:01,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:01,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:01,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:01,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:01,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:01,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:01,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:01,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:01,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 04:13:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:01,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:01,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:01,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:01,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:01,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:01,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:01,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:01,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:01,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:01,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:01,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:01,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 04:13:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:01,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:01,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:01,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:01,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:01,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:01,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:01,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:01,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:01,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:01,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:01,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:01,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 04:13:01,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:01,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:01,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:01,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:01,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:01,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:01,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:01,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:01,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:01,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:01,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:01,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:01,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 04:13:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:01,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:01,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:01,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:01,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:01,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:01,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:01,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:01,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:01,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:01,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:01,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:01,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 04:13:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:01,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:01,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:01,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:01,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:01,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:01,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:01,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:01,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:01,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:01,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:01,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:01,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 04:13:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:01,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:01,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:01,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:01,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:01,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:01,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:01,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:01,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:01,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:01,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:01,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:01,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-29 04:13:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:01,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:01,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:01,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:01,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:01,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:01,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:01,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:01,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:01,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:01,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:01,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:01,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 04:13:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:01,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:01,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:01,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:01,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:01,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:01,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:01,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:01,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:01,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:01,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:01,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:01,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-29 04:13:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:01,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:01,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:01,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:01,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:01,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:01,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:01,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:01,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:01,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:01,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:01,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:01,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-29 04:13:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:01,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:01,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:01,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:01,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:01,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:01,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:01,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:01,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:01,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:01,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:01,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:01,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-29 04:13:01,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:01,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:01,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:01,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:01,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:01,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:01,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:01,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:01,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:01,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:01,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:01,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:02,034 INFO L134 CoverageAnalysis]: Checked inductivity of 822 backedges. 26 proven. 484 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-29 04:13:02,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506636380] [2020-10-29 04:13:02,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:13:02,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-29 04:13:02,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011883792] [2020-10-29 04:13:02,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-29 04:13:02,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:13:02,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-29 04:13:02,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=648, Unknown=0, NotChecked=0, Total=702 [2020-10-29 04:13:02,036 INFO L87 Difference]: Start difference. First operand 439 states and 527 transitions. Second operand 27 states. [2020-10-29 04:13:10,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:13:10,761 INFO L93 Difference]: Finished difference Result 582 states and 692 transitions. [2020-10-29 04:13:10,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2020-10-29 04:13:10,763 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 165 [2020-10-29 04:13:10,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:13:10,767 INFO L225 Difference]: With dead ends: 582 [2020-10-29 04:13:10,767 INFO L226 Difference]: Without dead ends: 579 [2020-10-29 04:13:10,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3404 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=853, Invalid=10919, Unknown=0, NotChecked=0, Total=11772 [2020-10-29 04:13:10,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2020-10-29 04:13:10,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 460. [2020-10-29 04:13:10,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2020-10-29 04:13:10,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 554 transitions. [2020-10-29 04:13:10,863 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 554 transitions. Word has length 165 [2020-10-29 04:13:10,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:13:10,863 INFO L481 AbstractCegarLoop]: Abstraction has 460 states and 554 transitions. [2020-10-29 04:13:10,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-29 04:13:10,864 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 554 transitions. [2020-10-29 04:13:10,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-29 04:13:10,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:13:10,866 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:13:10,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-29 04:13:10,866 INFO L429 AbstractCegarLoop]: === Iteration 46 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:13:10,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:13:10,867 INFO L82 PathProgramCache]: Analyzing trace with hash 688004742, now seen corresponding path program 13 times [2020-10-29 04:13:10,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:13:10,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1041167373] [2020-10-29 04:13:10,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:13:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:10,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:12,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:12,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-29 04:13:12,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:12,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1164 [2020-10-29 04:13:12,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:12,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:12,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 04:13:12,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:13:12,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-29 04:13:12,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:12,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:13:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:12,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:12,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:12,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:13:12,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:12,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:12,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:12,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:12,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:13:12,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:12,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:13:12,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:12,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:13:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:12,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:12,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:12,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:12,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:12,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:12,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:12,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:12,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:13:12,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:12,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:13:12,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:12,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 04:13:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:12,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:12,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:12,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:12,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:12,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:12,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:12,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:12,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:12,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:12,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:12,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:12,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 04:13:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:12,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:12,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:12,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:12,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:12,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:12,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:12,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:12,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:12,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:12,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:12,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:12,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 04:13:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:12,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:12,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:12,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:12,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:12,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:12,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:12,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:12,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:12,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:12,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:12,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:12,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 04:13:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:12,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:12,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:12,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:12,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:12,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:12,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:12,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:12,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:12,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:12,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:12,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:12,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 04:13:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:12,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:12,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:12,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:12,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:12,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:12,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:12,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:12,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:12,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:12,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:12,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:12,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 04:13:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:12,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:12,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:12,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:12,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:12,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:12,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:12,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:12,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:12,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:12,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:12,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:12,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 04:13:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:12,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:12,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:12,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:12,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:12,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:12,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:12,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:12,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:12,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:12,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:12,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:12,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 04:13:12,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:12,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:12,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:12,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:12,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:12,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:12,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:12,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:12,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:12,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:12,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:12,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:12,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-29 04:13:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:12,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:12,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:12,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:12,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:12,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:12,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:12,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:12,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:12,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:12,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:12,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:12,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 04:13:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:12,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:12,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:12,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:12,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:12,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:12,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:12,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:12,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:12,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:12,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:12,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:12,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-29 04:13:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:12,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:12,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:12,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:12,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:12,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:12,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:12,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:12,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:12,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:12,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:12,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:12,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-29 04:13:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:12,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:12,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:12,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:12,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:12,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:12,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:12,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:12,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:12,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:12,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:12,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:12,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-29 04:13:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:12,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:12,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:12,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:12,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:12,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:12,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:12,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:12,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:12,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:12,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:12,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:12,929 INFO L134 CoverageAnalysis]: Checked inductivity of 822 backedges. 39 proven. 471 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-29 04:13:12,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1041167373] [2020-10-29 04:13:12,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:13:12,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-29 04:13:12,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940790516] [2020-10-29 04:13:12,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-29 04:13:12,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:13:12,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-29 04:13:12,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=550, Unknown=0, NotChecked=0, Total=600 [2020-10-29 04:13:12,931 INFO L87 Difference]: Start difference. First operand 460 states and 554 transitions. Second operand 25 states. [2020-10-29 04:13:21,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:13:21,757 INFO L93 Difference]: Finished difference Result 604 states and 717 transitions. [2020-10-29 04:13:21,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2020-10-29 04:13:21,760 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 165 [2020-10-29 04:13:21,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:13:21,764 INFO L225 Difference]: With dead ends: 604 [2020-10-29 04:13:21,764 INFO L226 Difference]: Without dead ends: 587 [2020-10-29 04:13:21,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2942 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=812, Invalid=9288, Unknown=0, NotChecked=0, Total=10100 [2020-10-29 04:13:21,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2020-10-29 04:13:21,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 465. [2020-10-29 04:13:21,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2020-10-29 04:13:21,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 560 transitions. [2020-10-29 04:13:21,855 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 560 transitions. Word has length 165 [2020-10-29 04:13:21,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:13:21,856 INFO L481 AbstractCegarLoop]: Abstraction has 465 states and 560 transitions. [2020-10-29 04:13:21,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-29 04:13:21,856 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 560 transitions. [2020-10-29 04:13:21,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-29 04:13:21,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:13:21,859 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:13:21,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-29 04:13:21,860 INFO L429 AbstractCegarLoop]: === Iteration 47 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:13:21,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:13:21,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1839954464, now seen corresponding path program 18 times [2020-10-29 04:13:21,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:13:21,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1393682545] [2020-10-29 04:13:21,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:13:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:21,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:23,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:23,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-29 04:13:23,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:23,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1102 [2020-10-29 04:13:23,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:23,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:23,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 04:13:23,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:13:23,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-29 04:13:23,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:23,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:13:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:23,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:23,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:23,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:13:23,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:23,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:23,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:23,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:23,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:13:23,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:23,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:13:23,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:23,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:13:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:23,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:23,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:23,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:23,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:23,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:23,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:23,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:23,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:13:23,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:23,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:13:23,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:23,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 04:13:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:23,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:23,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:23,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:23,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:23,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:23,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:23,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:23,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:23,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:23,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:23,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:23,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 04:13:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:23,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:23,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:23,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:23,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:23,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:23,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:23,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:23,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:23,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 04:13:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:23,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:23,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:23,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:23,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:23,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:23,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:23,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:23,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:23,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:23,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:23,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:23,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 04:13:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:23,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:23,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:23,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:23,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:23,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:23,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:23,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:23,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:23,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:23,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:23,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:23,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 04:13:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:23,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:23,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:23,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:23,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:23,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:23,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:23,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:23,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:23,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 04:13:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:23,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:23,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:23,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:23,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:23,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:23,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:23,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:23,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:23,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:23,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:23,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:23,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 04:13:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:23,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:23,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:23,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:23,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:23,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:23,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:23,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:23,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:23,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:23,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:23,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:23,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 04:13:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:23,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:23,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:23,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:23,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:23,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:23,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:23,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:23,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:23,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:23,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:23,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:23,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-29 04:13:23,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:23,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:23,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:23,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:23,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:23,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:23,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:23,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:23,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:23,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:23,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:23,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:23,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 04:13:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:23,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:23,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:23,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:23,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:23,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:23,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:23,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:23,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:23,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:23,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:23,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:23,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-29 04:13:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:23,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:23,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:23,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:23,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:23,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:23,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:23,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:23,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:23,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:23,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:23,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:23,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-29 04:13:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:23,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:23,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:23,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:23,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:23,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:23,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:23,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:23,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:23,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:24,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:24,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:24,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-29 04:13:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:24,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:24,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:24,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:24,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:24,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:24,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:24,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:24,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:24,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:24,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:24,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:24,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-29 04:13:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:24,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:24,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:24,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:24,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:24,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:24,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:24,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:24,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:24,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:24,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:24,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:24,075 INFO L134 CoverageAnalysis]: Checked inductivity of 944 backedges. 28 proven. 552 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-10-29 04:13:24,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1393682545] [2020-10-29 04:13:24,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:13:24,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-29 04:13:24,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257130385] [2020-10-29 04:13:24,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-29 04:13:24,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:13:24,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-29 04:13:24,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-10-29 04:13:24,076 INFO L87 Difference]: Start difference. First operand 465 states and 560 transitions. Second operand 27 states. [2020-10-29 04:13:35,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:13:35,154 INFO L93 Difference]: Finished difference Result 608 states and 723 transitions. [2020-10-29 04:13:35,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2020-10-29 04:13:35,156 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 174 [2020-10-29 04:13:35,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:13:35,160 INFO L225 Difference]: With dead ends: 608 [2020-10-29 04:13:35,160 INFO L226 Difference]: Without dead ends: 605 [2020-10-29 04:13:35,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3424 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=836, Invalid=11374, Unknown=0, NotChecked=0, Total=12210 [2020-10-29 04:13:35,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2020-10-29 04:13:35,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 485. [2020-10-29 04:13:35,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2020-10-29 04:13:35,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 584 transitions. [2020-10-29 04:13:35,295 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 584 transitions. Word has length 174 [2020-10-29 04:13:35,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:13:35,295 INFO L481 AbstractCegarLoop]: Abstraction has 485 states and 584 transitions. [2020-10-29 04:13:35,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-29 04:13:35,295 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 584 transitions. [2020-10-29 04:13:35,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-29 04:13:35,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:13:35,297 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:13:35,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-29 04:13:35,297 INFO L429 AbstractCegarLoop]: === Iteration 48 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:13:35,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:13:35,298 INFO L82 PathProgramCache]: Analyzing trace with hash 2133041886, now seen corresponding path program 14 times [2020-10-29 04:13:35,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:13:35,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455354038] [2020-10-29 04:13:35,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:13:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:35,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:36,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:36,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-29 04:13:36,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:36,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1174 [2020-10-29 04:13:36,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:36,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:36,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 04:13:36,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:13:36,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 184 [2020-10-29 04:13:36,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:37,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:13:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:37,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:37,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:37,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:13:37,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:37,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:13:37,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:37,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:37,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:13:37,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:37,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:13:37,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:37,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:13:37,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:37,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:37,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:37,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:37,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:37,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:37,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:37,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:37,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:13:37,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:37,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:13:37,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:37,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 04:13:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:37,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:37,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:37,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:37,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:37,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:37,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:37,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:37,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:37,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:37,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:37,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:37,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 04:13:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:37,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:37,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:37,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:37,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:37,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:37,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:37,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:37,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:37,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:37,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:37,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:37,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 04:13:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:37,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:37,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:37,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:37,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:37,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:37,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:37,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:37,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:37,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:37,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:37,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:37,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 04:13:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:37,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:37,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:37,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:37,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:37,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:37,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:37,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:37,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:37,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:37,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:37,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:37,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 04:13:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:37,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:37,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:37,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:37,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:37,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:37,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:37,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:37,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:37,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:37,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:37,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:37,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 04:13:37,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:37,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:37,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:37,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:37,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:37,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:37,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:37,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:37,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:37,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:37,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:37,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:37,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 04:13:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:37,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:37,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:37,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:37,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:37,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:37,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:37,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:37,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:37,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:37,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:37,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:37,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 04:13:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:37,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:37,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:37,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:37,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:37,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:37,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:37,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:37,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:37,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:37,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:37,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:37,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-29 04:13:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:37,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:37,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:37,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:37,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:37,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:37,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:37,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:37,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:37,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 04:13:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:37,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:37,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:37,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:37,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:37,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:37,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:37,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:37,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:37,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:37,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:37,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:37,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-29 04:13:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:37,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:37,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:37,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:37,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:37,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:37,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:37,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:37,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:37,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:37,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:37,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:37,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-29 04:13:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:37,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:37,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:37,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:37,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:37,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:37,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:37,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:37,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:37,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:37,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:37,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:37,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-29 04:13:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:37,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:37,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:37,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:37,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:37,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:37,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:37,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:37,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:37,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:37,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:37,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:37,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-29 04:13:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:37,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:37,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:37,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:37,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:37,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:37,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:37,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:37,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:37,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:37,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:37,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:37,579 INFO L134 CoverageAnalysis]: Checked inductivity of 944 backedges. 42 proven. 538 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-10-29 04:13:37,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455354038] [2020-10-29 04:13:37,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:13:37,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-29 04:13:37,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146346999] [2020-10-29 04:13:37,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-29 04:13:37,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:13:37,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-29 04:13:37,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-10-29 04:13:37,580 INFO L87 Difference]: Start difference. First operand 485 states and 584 transitions. Second operand 25 states. [2020-10-29 04:13:42,013 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-10-29 04:13:47,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:13:47,586 INFO L93 Difference]: Finished difference Result 630 states and 748 transitions. [2020-10-29 04:13:47,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2020-10-29 04:13:47,589 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 174 [2020-10-29 04:13:47,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:13:47,594 INFO L225 Difference]: With dead ends: 630 [2020-10-29 04:13:47,595 INFO L226 Difference]: Without dead ends: 613 [2020-10-29 04:13:47,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2961 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=790, Invalid=9716, Unknown=0, NotChecked=0, Total=10506 [2020-10-29 04:13:47,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2020-10-29 04:13:47,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 490. [2020-10-29 04:13:47,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-10-29 04:13:47,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 590 transitions. [2020-10-29 04:13:47,728 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 590 transitions. Word has length 174 [2020-10-29 04:13:47,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:13:47,728 INFO L481 AbstractCegarLoop]: Abstraction has 490 states and 590 transitions. [2020-10-29 04:13:47,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-29 04:13:47,729 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 590 transitions. [2020-10-29 04:13:47,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-29 04:13:47,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:13:47,731 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:13:47,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-29 04:13:47,732 INFO L429 AbstractCegarLoop]: === Iteration 49 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:13:47,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:13:47,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1809992378, now seen corresponding path program 19 times [2020-10-29 04:13:47,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:13:47,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357922430] [2020-10-29 04:13:47,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:13:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:47,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:48,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:50,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:50,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-29 04:13:50,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:13:50,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2955 [2020-10-29 04:13:50,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:50,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:50,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 04:13:50,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:13:50,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-29 04:13:50,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:51,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:13:51,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:51,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:51,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:51,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:13:51,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:51,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:51,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:51,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:51,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:13:51,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:51,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:13:51,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:51,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:13:51,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:51,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:51,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:51,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:51,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:51,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:13:51,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:13:51,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:51,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:51,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:51,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:51,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 04:13:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:51,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:51,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:51,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:51,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:51,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:51,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:51,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:51,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:51,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:51,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:51,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:51,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 04:13:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:51,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:51,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:51,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:51,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:51,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:51,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:51,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:51,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:51,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:51,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:51,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:51,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 04:13:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:51,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:51,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:51,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:51,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:51,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:51,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:51,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:51,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:51,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:51,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:51,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:51,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 04:13:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:51,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:51,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:51,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:51,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:51,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:51,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:51,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:51,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:51,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:51,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:51,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:51,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 04:13:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:51,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:51,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:51,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:51,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:51,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:51,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:51,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:51,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:51,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:51,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:51,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:51,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 04:13:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:51,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:51,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:51,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:51,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:51,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:51,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:51,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:51,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:51,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:51,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:51,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:51,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 04:13:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:51,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:51,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:51,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:51,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:51,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:51,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:51,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:51,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:51,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:51,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:51,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:51,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 04:13:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:51,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:51,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:51,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:51,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:51,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:51,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:51,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:51,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:51,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:51,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:51,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:51,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-29 04:13:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:51,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:51,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:51,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:51,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:51,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:51,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:51,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:51,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:51,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:51,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:51,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:51,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 04:13:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:51,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:51,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:51,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:51,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:51,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:51,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:51,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:51,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:51,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:51,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:51,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:51,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-29 04:13:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:51,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:51,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:51,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:51,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:51,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:51,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:51,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:51,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:51,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:51,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:51,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:51,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-29 04:13:51,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:51,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:51,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:51,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:51,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:51,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:51,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:51,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:51,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:51,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:51,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:51,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:51,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-29 04:13:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:51,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:51,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:51,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:51,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:51,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:51,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:51,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:51,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:51,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:51,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:51,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:51,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-29 04:13:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:51,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:51,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:51,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:51,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:51,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:51,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:51,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:51,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:51,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:51,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:51,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:51,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-29 04:13:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:51,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:51,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:51,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:51,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:51,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:51,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:51,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:51,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:51,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:51,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:51,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:51,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1075 backedges. 529 proven. 126 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-10-29 04:13:51,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357922430] [2020-10-29 04:13:51,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:13:51,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-29 04:13:51,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393983531] [2020-10-29 04:13:51,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-29 04:13:51,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:13:51,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-29 04:13:51,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2020-10-29 04:13:51,880 INFO L87 Difference]: Start difference. First operand 490 states and 590 transitions. Second operand 27 states. [2020-10-29 04:13:55,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:13:55,306 INFO L93 Difference]: Finished difference Result 915 states and 1112 transitions. [2020-10-29 04:13:55,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-29 04:13:55,308 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 183 [2020-10-29 04:13:55,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:13:55,312 INFO L225 Difference]: With dead ends: 915 [2020-10-29 04:13:55,312 INFO L226 Difference]: Without dead ends: 526 [2020-10-29 04:13:55,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=557, Invalid=2199, Unknown=0, NotChecked=0, Total=2756 [2020-10-29 04:13:55,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-29 04:13:55,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 510. [2020-10-29 04:13:55,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2020-10-29 04:13:55,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 610 transitions. [2020-10-29 04:13:55,446 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 610 transitions. Word has length 183 [2020-10-29 04:13:55,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:13:55,446 INFO L481 AbstractCegarLoop]: Abstraction has 510 states and 610 transitions. [2020-10-29 04:13:55,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-29 04:13:55,446 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 610 transitions. [2020-10-29 04:13:55,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-29 04:13:55,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:13:55,449 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 15, 15, 15, 15, 15, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:13:55,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-29 04:13:55,449 INFO L429 AbstractCegarLoop]: === Iteration 50 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:13:55,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:13:55,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1230365236, now seen corresponding path program 20 times [2020-10-29 04:13:55,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:13:55,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253124299] [2020-10-29 04:13:55,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:13:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:55,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:57,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:57,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-10-29 04:13:57,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:57,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1964 [2020-10-29 04:13:57,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:57,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:57,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-29 04:13:57,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:13:57,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 205 [2020-10-29 04:13:57,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:58,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:13:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:58,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:58,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:58,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:13:58,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:58,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:58,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:58,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:58,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:13:58,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:58,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:13:58,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:58,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:13:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:58,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:58,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:58,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:58,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:58,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:58,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:58,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:58,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:13:58,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:58,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:13:58,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:58,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 04:13:58,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:58,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:58,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:58,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:58,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:58,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:58,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:58,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:58,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:58,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:58,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:58,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:58,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 04:13:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:58,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:58,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:58,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:58,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:58,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:58,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:58,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:58,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:58,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:58,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:58,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:58,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:13:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:58,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:58,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:58,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:58,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:58,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:58,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:58,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:58,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:58,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:58,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:58,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:58,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 04:13:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:58,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:58,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:58,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:58,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:58,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:58,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:58,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:58,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:58,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:58,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:58,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:58,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 04:13:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:58,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:58,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:58,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:58,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:58,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:58,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:58,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:58,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:58,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:58,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:58,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:58,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 04:13:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:58,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:58,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:58,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:58,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:58,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:58,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:58,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:58,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:58,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:58,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:58,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:58,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:13:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:58,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:58,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:58,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:58,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:58,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:58,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:58,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:58,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:58,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:58,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:58,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:58,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 04:13:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:58,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:58,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:58,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:58,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:58,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:58,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:58,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:58,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:58,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:58,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:58,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:58,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 04:13:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:58,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:58,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:58,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:58,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:58,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:58,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:58,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:58,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:58,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:58,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:58,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:58,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-29 04:13:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:58,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:58,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:58,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:58,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:58,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:13:58,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:58,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:58,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:58,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:58,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:58,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:58,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-29 04:13:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:58,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:58,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:58,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:58,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:58,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:58,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:58,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:58,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:58,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-29 04:13:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:58,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:58,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:58,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:58,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:58,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:58,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:58,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:58,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:58,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:58,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:58,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:58,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-29 04:13:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:58,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:58,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:58,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:58,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:58,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:58,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:58,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:58,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:58,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:58,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:58,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:58,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-29 04:13:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:58,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:58,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:58,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:58,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:58,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:58,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:58,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:58,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:58,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:58,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:58,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:58,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-29 04:13:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:58,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:58,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:58,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:58,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:58,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:58,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:58,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:58,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:58,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:58,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:58,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:58,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1101 backedges. 30 proven. 651 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-10-29 04:13:58,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253124299] [2020-10-29 04:13:58,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:13:58,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-29 04:13:58,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607181376] [2020-10-29 04:13:58,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-29 04:13:58,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:13:58,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-29 04:13:58,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=809, Unknown=0, NotChecked=0, Total=870 [2020-10-29 04:13:58,980 INFO L87 Difference]: Start difference. First operand 510 states and 610 transitions. Second operand 30 states. [2020-10-29 04:14:17,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:17,093 INFO L93 Difference]: Finished difference Result 669 states and 795 transitions. [2020-10-29 04:14:17,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2020-10-29 04:14:17,096 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 188 [2020-10-29 04:14:17,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:17,101 INFO L225 Difference]: With dead ends: 669 [2020-10-29 04:14:17,101 INFO L226 Difference]: Without dead ends: 666 [2020-10-29 04:14:17,103 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4634 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=1066, Invalid=14434, Unknown=0, NotChecked=0, Total=15500 [2020-10-29 04:14:17,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2020-10-29 04:14:17,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 532. [2020-10-29 04:14:17,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2020-10-29 04:14:17,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 640 transitions. [2020-10-29 04:14:17,207 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 640 transitions. Word has length 188 [2020-10-29 04:14:17,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:17,208 INFO L481 AbstractCegarLoop]: Abstraction has 532 states and 640 transitions. [2020-10-29 04:14:17,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-29 04:14:17,208 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 640 transitions. [2020-10-29 04:14:17,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-29 04:14:17,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:17,211 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:17,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-10-29 04:14:17,212 INFO L429 AbstractCegarLoop]: === Iteration 51 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:17,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:17,212 INFO L82 PathProgramCache]: Analyzing trace with hash -2084907830, now seen corresponding path program 15 times [2020-10-29 04:14:17,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:17,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [59615467] [2020-10-29 04:14:17,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:17,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:19,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:19,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-10-29 04:14:19,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:19,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1823 [2020-10-29 04:14:19,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:19,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:19,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-29 04:14:19,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:14:19,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 200 [2020-10-29 04:14:19,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:20,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:20,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:20,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:20,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:14:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:14:20,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:20,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:20,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 04:14:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:20,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 04:14:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:20,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:14:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:20,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 04:14:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:20,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 04:14:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:20,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 04:14:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:20,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:14:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:20,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 04:14:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:20,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 04:14:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:20,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-29 04:14:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:20,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-29 04:14:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:20,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-29 04:14:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:20,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-29 04:14:20,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:14:20,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-29 04:14:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:20,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-29 04:14:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:14:20,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1101 backedges. 45 proven. 636 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-10-29 04:14:20,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [59615467] [2020-10-29 04:14:20,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:20,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-29 04:14:20,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889308523] [2020-10-29 04:14:20,637 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-29 04:14:20,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:20,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-29 04:14:20,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=700, Unknown=0, NotChecked=0, Total=756 [2020-10-29 04:14:20,638 INFO L87 Difference]: Start difference. First operand 532 states and 640 transitions. Second operand 28 states.