/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:35:25,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:35:25,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:35:25,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:35:25,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:35:25,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:35:25,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:35:25,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:35:25,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:35:25,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:35:25,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:35:25,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:35:25,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:35:25,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:35:25,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:35:25,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:35:25,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:35:25,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:35:25,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:35:25,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:35:25,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:35:25,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:35:25,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:35:25,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:35:25,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:35:25,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:35:25,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:35:25,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:35:25,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:35:25,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:35:25,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:35:25,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:35:25,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:35:25,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:35:25,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:35:25,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:35:25,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:35:25,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:35:25,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:35:25,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:35:25,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:35:25,874 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:35:25,919 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:35:25,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:35:25,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:35:25,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:35:25,922 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:35:25,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:35:25,923 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:35:25,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:35:25,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:35:25,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:35:25,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:35:25,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:35:25,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:35:25,926 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:35:25,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:35:25,926 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:35:25,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:35:25,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:35:25,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:35:25,927 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:35:25,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:35:25,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:35:25,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:35:25,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:35:25,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:35:25,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:35:25,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:35:25,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:35:25,929 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:35:25,929 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:35:26,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:35:26,462 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:35:26,468 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:35:26,470 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:35:26,470 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:35:26,471 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i [2020-09-25 04:35:26,566 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02d18bacc/5f4c0735dc324ee9b4ad4529d2e58d1c/FLAG6db8df1e9 [2020-09-25 04:35:27,116 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:35:27,117 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i [2020-09-25 04:35:27,129 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02d18bacc/5f4c0735dc324ee9b4ad4529d2e58d1c/FLAG6db8df1e9 [2020-09-25 04:35:27,462 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02d18bacc/5f4c0735dc324ee9b4ad4529d2e58d1c [2020-09-25 04:35:27,474 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:35:27,480 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:35:27,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:35:27,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:35:27,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:35:27,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:35:27" (1/1) ... [2020-09-25 04:35:27,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@351d06fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:27, skipping insertion in model container [2020-09-25 04:35:27,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:35:27" (1/1) ... [2020-09-25 04:35:27,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:35:27,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:35:27,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:35:27,747 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:35:27,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:35:27,792 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:35:27,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:27 WrapperNode [2020-09-25 04:35:27,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:35:27,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:35:27,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:35:27,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:35:27,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:27" (1/1) ... [2020-09-25 04:35:27,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:27" (1/1) ... [2020-09-25 04:35:27,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:27" (1/1) ... [2020-09-25 04:35:27,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:27" (1/1) ... [2020-09-25 04:35:27,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:27" (1/1) ... [2020-09-25 04:35:27,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:27" (1/1) ... [2020-09-25 04:35:27,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:27" (1/1) ... [2020-09-25 04:35:27,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:35:27,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:35:27,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:35:27,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:35:27,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:35:28,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:35:28,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:35:28,013 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 04:35:28,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 04:35:28,013 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:35:28,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:35:28,013 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 04:35:28,014 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 04:35:28,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 04:35:28,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:35:28,014 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:35:28,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:35:28,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:35:28,388 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:35:28,388 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 04:35:28,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:35:28 BoogieIcfgContainer [2020-09-25 04:35:28,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:35:28,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:35:28,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:35:28,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:35:28,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:35:27" (1/3) ... [2020-09-25 04:35:28,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a39a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:35:28, skipping insertion in model container [2020-09-25 04:35:28,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:35:27" (2/3) ... [2020-09-25 04:35:28,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a39a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:35:28, skipping insertion in model container [2020-09-25 04:35:28,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:35:28" (3/3) ... [2020-09-25 04:35:28,404 INFO L109 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i [2020-09-25 04:35:28,416 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:35:28,427 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:35:28,447 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:35:28,480 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:35:28,480 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:35:28,480 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:35:28,481 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:35:28,481 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:35:28,481 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:35:28,481 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:35:28,481 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:35:28,504 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-09-25 04:35:28,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 04:35:28,512 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:28,513 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] [2020-09-25 04:35:28,514 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:28,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:28,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1441743938, now seen corresponding path program 1 times [2020-09-25 04:35:28,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:28,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1198928694] [2020-09-25 04:35:28,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:28,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:28,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:28,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 04:35:28,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:28,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-25 04:35:28,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:28,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:35:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-25 04:35:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:28,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:35:29,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:29,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:29,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:29,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:35:29,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:29,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:35:29,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:29,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:29,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:29,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:29,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:29,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:29,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:35:29,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1198928694] [2020-09-25 04:35:29,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:29,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:35:29,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185657787] [2020-09-25 04:35:29,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:35:29,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:29,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:35:29,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:35:29,073 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 5 states. [2020-09-25 04:35:29,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:29,294 INFO L93 Difference]: Finished difference Result 143 states and 210 transitions. [2020-09-25 04:35:29,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:35:29,297 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-09-25 04:35:29,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:29,311 INFO L225 Difference]: With dead ends: 143 [2020-09-25 04:35:29,311 INFO L226 Difference]: Without dead ends: 81 [2020-09-25 04:35:29,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:35:29,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-09-25 04:35:29,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 73. [2020-09-25 04:35:29,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-25 04:35:29,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 91 transitions. [2020-09-25 04:35:29,384 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 91 transitions. Word has length 25 [2020-09-25 04:35:29,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:29,384 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 91 transitions. [2020-09-25 04:35:29,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:35:29,385 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 91 transitions. [2020-09-25 04:35:29,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 04:35:29,387 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:29,387 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] [2020-09-25 04:35:29,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:35:29,388 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:29,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:29,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1406858677, now seen corresponding path program 1 times [2020-09-25 04:35:29,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:29,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865323188] [2020-09-25 04:35:29,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:29,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:29,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:29,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:29,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:29,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 04:35:29,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:29,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-09-25 04:35:29,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:29,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:29,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:35:29,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 04:35:29,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:35:29,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:35:29,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:29,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:29,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:29,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:35:29,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:29,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:35:29,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:29,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:29,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:29,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:29,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:29,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:29,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:35:29,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [865323188] [2020-09-25 04:35:29,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:29,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:35:29,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204823888] [2020-09-25 04:35:29,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:35:29,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:29,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:35:29,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:35:29,665 INFO L87 Difference]: Start difference. First operand 73 states and 91 transitions. Second operand 5 states. [2020-09-25 04:35:29,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:29,791 INFO L93 Difference]: Finished difference Result 85 states and 102 transitions. [2020-09-25 04:35:29,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:35:29,792 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-09-25 04:35:29,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:29,797 INFO L225 Difference]: With dead ends: 85 [2020-09-25 04:35:29,797 INFO L226 Difference]: Without dead ends: 83 [2020-09-25 04:35:29,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:35:29,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-09-25 04:35:29,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2020-09-25 04:35:29,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-25 04:35:29,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 97 transitions. [2020-09-25 04:35:29,816 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 97 transitions. Word has length 25 [2020-09-25 04:35:29,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:29,816 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 97 transitions. [2020-09-25 04:35:29,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:35:29,820 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 97 transitions. [2020-09-25 04:35:29,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 04:35:29,821 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:29,822 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 04:35:29,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:35:29,822 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:29,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:29,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1771333938, now seen corresponding path program 1 times [2020-09-25 04:35:29,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:29,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724352324] [2020-09-25 04:35:29,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:29,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:29,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:29,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 04:35:29,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:29,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 04:35:29,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:29,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:29,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:35:29,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 04:35:29,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 04:35:29,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:30,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:30,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:30,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:30,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:35:30,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:30,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:35:30,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:30,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:30,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:30,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:30,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:30,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:30,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:35:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:30,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:30,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:30,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:30,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:30,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 04:35:30,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:30,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:30,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:30,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:30,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:30,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:30,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:35:30,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724352324] [2020-09-25 04:35:30,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:30,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:35:30,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899523502] [2020-09-25 04:35:30,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:35:30,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:30,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:35:30,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:35:30,049 INFO L87 Difference]: Start difference. First operand 81 states and 97 transitions. Second operand 5 states. [2020-09-25 04:35:30,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:30,176 INFO L93 Difference]: Finished difference Result 116 states and 145 transitions. [2020-09-25 04:35:30,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:35:30,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-09-25 04:35:30,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:30,179 INFO L225 Difference]: With dead ends: 116 [2020-09-25 04:35:30,179 INFO L226 Difference]: Without dead ends: 114 [2020-09-25 04:35:30,180 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:35:30,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-25 04:35:30,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 100. [2020-09-25 04:35:30,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-25 04:35:30,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2020-09-25 04:35:30,199 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 30 [2020-09-25 04:35:30,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:30,200 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2020-09-25 04:35:30,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:35:30,200 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2020-09-25 04:35:30,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 04:35:30,202 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:30,202 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-09-25 04:35:30,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:35:30,202 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:30,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:30,203 INFO L82 PathProgramCache]: Analyzing trace with hash 456630219, now seen corresponding path program 1 times [2020-09-25 04:35:30,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:30,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139497065] [2020-09-25 04:35:30,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:30,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:30,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:30,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:30,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 04:35:30,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:30,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 04:35:30,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:30,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:30,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:35:30,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 04:35:30,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 04:35:30,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:30,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:30,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:30,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:30,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:35:30,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:30,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:35:30,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:30,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:30,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:30,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:30,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:30,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:30,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:35:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:30,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:30,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:30,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:30,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:30,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:35:30,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:30,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:30,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:30,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:30,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:30,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:30,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:35:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:30,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:30,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:30,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:30,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:30,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:35:30,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:30,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:30,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:30,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:30,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:30,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:30,430 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 04:35:30,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139497065] [2020-09-25 04:35:30,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:30,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:35:30,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977715828] [2020-09-25 04:35:30,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:35:30,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:30,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:35:30,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:35:30,433 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand 6 states. [2020-09-25 04:35:30,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:30,599 INFO L93 Difference]: Finished difference Result 106 states and 130 transitions. [2020-09-25 04:35:30,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:35:30,599 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-25 04:35:30,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:30,601 INFO L225 Difference]: With dead ends: 106 [2020-09-25 04:35:30,601 INFO L226 Difference]: Without dead ends: 104 [2020-09-25 04:35:30,602 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:35:30,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-09-25 04:35:30,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-09-25 04:35:30,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-09-25 04:35:30,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 128 transitions. [2020-09-25 04:35:30,619 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 128 transitions. Word has length 35 [2020-09-25 04:35:30,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:30,619 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 128 transitions. [2020-09-25 04:35:30,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:35:30,620 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2020-09-25 04:35:30,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 04:35:30,621 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:30,621 INFO L422 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1] [2020-09-25 04:35:30,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:35:30,622 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:30,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:30,622 INFO L82 PathProgramCache]: Analyzing trace with hash 364478305, now seen corresponding path program 1 times [2020-09-25 04:35:30,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:30,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62422716] [2020-09-25 04:35:30,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:30,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:30,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:30,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 04:35:30,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:30,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 04:35:30,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:30,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:30,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:35:30,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 04:35:30,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 04:35:30,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:30,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:30,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:30,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:30,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:35:30,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:30,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:35:30,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:30,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:30,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:30,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:30,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:30,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:30,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:35:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:30,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:30,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:30,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:30,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:30,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:35:30,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:30,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:30,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:30,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:30,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:30,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:30,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:35:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:30,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:30,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:30,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:30,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:30,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:35:30,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:30,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:30,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:30,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:30,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:30,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:30,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-25 04:35:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:30,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:30,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:30,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:30,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:30,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:35:30,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:30,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:30,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:30,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:30,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:30,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:30,832 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 04:35:30,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [62422716] [2020-09-25 04:35:30,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:30,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:35:30,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523747005] [2020-09-25 04:35:30,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:35:30,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:30,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:35:30,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:35:30,835 INFO L87 Difference]: Start difference. First operand 104 states and 128 transitions. Second operand 5 states. [2020-09-25 04:35:30,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:30,932 INFO L93 Difference]: Finished difference Result 135 states and 172 transitions. [2020-09-25 04:35:30,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:35:30,932 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-09-25 04:35:30,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:30,934 INFO L225 Difference]: With dead ends: 135 [2020-09-25 04:35:30,935 INFO L226 Difference]: Without dead ends: 133 [2020-09-25 04:35:30,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:35:30,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-09-25 04:35:30,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 125. [2020-09-25 04:35:30,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-25 04:35:30,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 162 transitions. [2020-09-25 04:35:30,955 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 162 transitions. Word has length 40 [2020-09-25 04:35:30,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:30,956 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 162 transitions. [2020-09-25 04:35:30,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:35:30,956 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 162 transitions. [2020-09-25 04:35:30,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 04:35:30,959 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:30,959 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:35:30,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:35:30,960 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:30,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:30,960 INFO L82 PathProgramCache]: Analyzing trace with hash 914533499, now seen corresponding path program 1 times [2020-09-25 04:35:30,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:30,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067524719] [2020-09-25 04:35:30,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:30,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:31,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:31,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:31,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:31,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:32,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:32,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 04:35:32,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:35:32,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1654 [2020-09-25 04:35:32,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:32,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:32,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:35:32,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-25 04:35:32,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 04:35:32,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:32,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:32,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:32,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:32,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:35:32,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:32,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:35:32,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:32,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:32,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:32,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:32,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:32,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:32,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:35:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:32,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:32,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:32,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:32,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:32,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:32,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:32,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:32,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:32,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:32,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:32,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:32,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:35:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:32,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:32,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:32,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:32,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:32,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:32,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:32,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:32,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:32,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:32,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:32,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:32,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-25 04:35:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:32,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:32,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:32,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:32,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:32,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:32,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:32,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:32,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:32,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:32,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:32,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:32,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 04:35:32,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:32,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:32,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:32,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:32,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:32,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:32,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:32,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:32,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:32,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:32,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:32,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:32,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 04:35:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:32,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:32,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:32,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:32,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:32,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:35:32,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:32,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:32,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:32,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 04:35:32,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:32,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 04:35:32,775 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-25 04:35:32,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067524719] [2020-09-25 04:35:32,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:32,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:35:32,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308087413] [2020-09-25 04:35:32,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:35:32,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:32,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:35:32,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:35:32,779 INFO L87 Difference]: Start difference. First operand 125 states and 162 transitions. Second operand 5 states. [2020-09-25 04:35:32,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:32,870 INFO L93 Difference]: Finished difference Result 229 states and 302 transitions. [2020-09-25 04:35:32,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:35:32,871 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-09-25 04:35:32,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:32,873 INFO L225 Difference]: With dead ends: 229 [2020-09-25 04:35:32,874 INFO L226 Difference]: Without dead ends: 128 [2020-09-25 04:35:32,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:35:32,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-09-25 04:35:32,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-09-25 04:35:32,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-25 04:35:32,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 165 transitions. [2020-09-25 04:35:32,912 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 165 transitions. Word has length 58 [2020-09-25 04:35:32,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:32,913 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 165 transitions. [2020-09-25 04:35:32,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:35:32,915 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 165 transitions. [2020-09-25 04:35:32,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 04:35:32,923 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:32,923 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:35:32,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:35:32,928 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:32,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:32,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1807369608, now seen corresponding path program 1 times [2020-09-25 04:35:32,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:32,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853114395] [2020-09-25 04:35:32,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:32,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:33,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:33,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:33,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:35:33,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:33,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 487 [2020-09-25 04:35:33,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:33,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:33,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:35:33,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-25 04:35:33,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 04:35:33,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:33,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:33,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:33,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:33,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:35:33,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:33,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:35:33,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:33,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:33,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:33,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:33,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:33,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:33,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:35:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:33,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:33,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:33,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:33,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:33,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:33,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:35:33,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:33,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:33,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:33,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:33,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:33,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:33,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:35:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:33,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:33,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:33,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:33,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:33,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:33,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:33,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:33,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:33,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:33,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:33,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:33,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:35:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:33,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:33,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:33,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:33,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:33,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:35:33,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:33,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:33,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:33,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:33,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:33,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:33,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 04:35:33,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:33,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:33,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:33,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:33,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:33,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:33,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:33,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:33,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:33,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:33,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:33,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:33,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 04:35:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:33,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:33,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:33,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:33,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:33,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 04:35:33,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:33,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:33,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:33,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:33,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:33,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:33,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 04:35:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:33,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:33,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:33,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:33,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:33,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:35:33,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:33,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:33,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:33,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:33,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:33,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:33,645 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-09-25 04:35:33,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853114395] [2020-09-25 04:35:33,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:33,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:35:33,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781575825] [2020-09-25 04:35:33,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:35:33,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:33,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:35:33,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:35:33,651 INFO L87 Difference]: Start difference. First operand 128 states and 165 transitions. Second operand 7 states. [2020-09-25 04:35:33,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:33,900 INFO L93 Difference]: Finished difference Result 136 states and 172 transitions. [2020-09-25 04:35:33,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:35:33,900 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-09-25 04:35:33,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:33,902 INFO L225 Difference]: With dead ends: 136 [2020-09-25 04:35:33,902 INFO L226 Difference]: Without dead ends: 134 [2020-09-25 04:35:33,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:35:33,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-09-25 04:35:33,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2020-09-25 04:35:33,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-09-25 04:35:33,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 168 transitions. [2020-09-25 04:35:33,928 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 168 transitions. Word has length 64 [2020-09-25 04:35:33,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:33,929 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 168 transitions. [2020-09-25 04:35:33,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:35:33,929 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 168 transitions. [2020-09-25 04:35:33,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 04:35:33,932 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:33,933 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:35:33,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:35:33,933 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:33,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:33,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1715909932, now seen corresponding path program 1 times [2020-09-25 04:35:33,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:33,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302483825] [2020-09-25 04:35:33,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:33,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:34,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:34,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:34,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:34,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 04:35:34,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:35:34,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 799 [2020-09-25 04:35:34,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:34,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:34,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:35:34,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 04:35:34,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 04:35:34,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:34,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:34,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:34,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:34,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:35:34,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:34,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:35:34,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:34,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:34,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:34,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:34,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:34,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:34,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:35:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:34,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:34,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:34,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:34,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:34,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:35:34,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:34,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:34,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:34,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:34,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:34,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:34,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:35:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:34,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:34,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:34,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:34,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:34,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:35:34,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:34,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:34,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:34,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:34,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:34,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:34,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:35:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:34,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:34,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:34,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:34,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:34,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 04:35:34,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:34,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:34,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:34,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:34,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:34,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:34,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 04:35:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:34,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:34,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:34,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:34,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:34,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:35:34,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:34,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:34,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:34,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:34,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:34,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:34,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 04:35:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:34,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:34,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:34,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:34,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:34,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:35:34,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:34,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:34,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:34,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:34,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:34,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:34,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 04:35:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:34,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:34,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:34,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:34,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:34,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:35:34,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:34,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:34,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:34,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:34,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:34,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:34,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 04:35:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:34,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:34,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:34,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:34,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:34,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:35:34,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:34,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:34,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:34,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:34,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:34,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:34,941 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-09-25 04:35:34,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [302483825] [2020-09-25 04:35:34,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:34,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:35:34,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731166528] [2020-09-25 04:35:34,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:35:34,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:34,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:35:34,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:35:34,944 INFO L87 Difference]: Start difference. First operand 132 states and 168 transitions. Second operand 7 states. [2020-09-25 04:35:35,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:35,118 INFO L93 Difference]: Finished difference Result 162 states and 205 transitions. [2020-09-25 04:35:35,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:35:35,118 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-25 04:35:35,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:35,120 INFO L225 Difference]: With dead ends: 162 [2020-09-25 04:35:35,121 INFO L226 Difference]: Without dead ends: 160 [2020-09-25 04:35:35,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:35:35,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-09-25 04:35:35,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 146. [2020-09-25 04:35:35,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-25 04:35:35,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 185 transitions. [2020-09-25 04:35:35,137 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 185 transitions. Word has length 69 [2020-09-25 04:35:35,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:35,138 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 185 transitions. [2020-09-25 04:35:35,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:35:35,138 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 185 transitions. [2020-09-25 04:35:35,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 04:35:35,139 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:35,140 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:35:35,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 04:35:35,140 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:35,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:35,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1298936315, now seen corresponding path program 1 times [2020-09-25 04:35:35,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:35,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776792486] [2020-09-25 04:35:35,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:35,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:35,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:35,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:35,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:35,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-25 04:35:35,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:35:35,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 834 [2020-09-25 04:35:35,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:35,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:35,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:35:35,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 04:35:35,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 04:35:35,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:36,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:36,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:36,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:35:36,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:36,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:35:36,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:36,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:36,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:36,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:36,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:36,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:36,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:35:36,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:36,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:36,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:36,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:36,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:35:36,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:36,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:36,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:36,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:36,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:36,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:36,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:35:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:36,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:36,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:36,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:36,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:35:36,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:36,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:36,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:36,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:36,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:36,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:36,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:35:36,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:36,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:36,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:36,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:36,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:35:36,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:36,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:36,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:36,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:36,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:36,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:36,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 04:35:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:36,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:36,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:36,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:36,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:35:36,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:36,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:36,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:36,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:36,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:36,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:36,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 04:35:36,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:36,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:36,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:36,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:36,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:36,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:36,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:36,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:36,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:36,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:36,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:36,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 04:35:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:36,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:36,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:36,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:36,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:36,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:36,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:36,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:36,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:36,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:36,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:36,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-25 04:35:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:36,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:36,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:36,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:36,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:36,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:36,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:36,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:36,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:36,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:36,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:36,175 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-09-25 04:35:36,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776792486] [2020-09-25 04:35:36,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:36,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:35:36,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060612279] [2020-09-25 04:35:36,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:35:36,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:36,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:35:36,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:35:36,182 INFO L87 Difference]: Start difference. First operand 146 states and 185 transitions. Second operand 7 states. [2020-09-25 04:35:36,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:36,432 INFO L93 Difference]: Finished difference Result 210 states and 280 transitions. [2020-09-25 04:35:36,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:35:36,432 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2020-09-25 04:35:36,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:36,436 INFO L225 Difference]: With dead ends: 210 [2020-09-25 04:35:36,436 INFO L226 Difference]: Without dead ends: 206 [2020-09-25 04:35:36,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:35:36,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-09-25 04:35:36,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 188. [2020-09-25 04:35:36,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-09-25 04:35:36,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 249 transitions. [2020-09-25 04:35:36,454 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 249 transitions. Word has length 71 [2020-09-25 04:35:36,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:36,455 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 249 transitions. [2020-09-25 04:35:36,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:35:36,455 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 249 transitions. [2020-09-25 04:35:36,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 04:35:36,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:36,457 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:35:36,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 04:35:36,457 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:36,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:36,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1528474552, now seen corresponding path program 1 times [2020-09-25 04:35:36,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:36,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734467615] [2020-09-25 04:35:36,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:36,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:36,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-09-25 04:35:36,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:36,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-09-25 04:35:36,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:36,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:36,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:35:36,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 04:35:36,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 04:35:36,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:36,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:36,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:36,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:35:36,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:36,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:35:36,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:36,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:36,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:36,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:36,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:35:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:36,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:36,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:36,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:36,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:36,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:36,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:36,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:36,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:36,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:36,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:36,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:35:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:36,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:36,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:36,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:36,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:35:36,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:36,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:36,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:36,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:36,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:36,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:36,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:35:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:36,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:36,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:36,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:36,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:36,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:36,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:36,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:36,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:36,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:36,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:36,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 04:35:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:36,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:36,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:36,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:36,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:36,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:36,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:36,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:36,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:36,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:36,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:36,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 04:35:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:36,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:36,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:36,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:36,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:36,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:36,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:36,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:36,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:36,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:36,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:36,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 04:35:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:36,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:36,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:36,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:36,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:35:36,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:36,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:36,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:36,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:36,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:36,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:36,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 04:35:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:36,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:36,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:36,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:36,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:35:36,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:36,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:36,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:36,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:36,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:36,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 04:35:36,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 04:35:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:36,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:36,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:36,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:36,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:36,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:36,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:36,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:36,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:36,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:36,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:36,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:36,919 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-09-25 04:35:36,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734467615] [2020-09-25 04:35:36,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:36,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:35:36,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739387869] [2020-09-25 04:35:36,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:35:36,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:36,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:35:36,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:35:36,922 INFO L87 Difference]: Start difference. First operand 188 states and 249 transitions. Second operand 8 states. [2020-09-25 04:35:37,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:37,148 INFO L93 Difference]: Finished difference Result 194 states and 254 transitions. [2020-09-25 04:35:37,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 04:35:37,149 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-09-25 04:35:37,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:37,154 INFO L225 Difference]: With dead ends: 194 [2020-09-25 04:35:37,154 INFO L226 Difference]: Without dead ends: 192 [2020-09-25 04:35:37,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-09-25 04:35:37,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-25 04:35:37,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-09-25 04:35:37,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-09-25 04:35:37,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 252 transitions. [2020-09-25 04:35:37,180 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 252 transitions. Word has length 74 [2020-09-25 04:35:37,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:37,180 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 252 transitions. [2020-09-25 04:35:37,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:35:37,181 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 252 transitions. [2020-09-25 04:35:37,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-25 04:35:37,190 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:37,191 INFO L422 BasicCegarLoop]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:35:37,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 04:35:37,191 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:37,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:37,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1530703596, now seen corresponding path program 1 times [2020-09-25 04:35:37,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:37,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447103881] [2020-09-25 04:35:37,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:37,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:37,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:37,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:37,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-25 04:35:37,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:37,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 437 [2020-09-25 04:35:37,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:37,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:37,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:35:37,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 04:35:37,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 04:35:37,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:37,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:37,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:37,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:37,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:35:37,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:37,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:35:37,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:37,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:37,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:37,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:37,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:37,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:37,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:35:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:37,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:37,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:37,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:37,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:37,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:37,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:37,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:37,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:37,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:37,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:37,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:37,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:35:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:37,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:37,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:37,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:37,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:37,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:37,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:37,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:37,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:37,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:37,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:37,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:37,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:35:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:37,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:37,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:37,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:37,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:37,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:37,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:37,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:37,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:37,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:37,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:37,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:37,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 04:35:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:37,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:37,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:37,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:37,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:37,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:35:37,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:37,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:37,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:37,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:37,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:37,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:37,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 04:35:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:37,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:37,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:37,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:37,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:37,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:37,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:37,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:37,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:37,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:37,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:37,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:37,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 04:35:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:37,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:37,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:37,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:37,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:37,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:37,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:35:37,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:37,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:37,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:37,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:37,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:37,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:37,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 04:35:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:37,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:37,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:37,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:37,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:37,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:37,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:37,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:37,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:37,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:37,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:37,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:37,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 04:35:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:37,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:37,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:37,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:37,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:37,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:35:37,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:37,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:37,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:37,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:37,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:37,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:37,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 04:35:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:37,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:37,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:37,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:37,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:37,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:35:37,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:37,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:37,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:37,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:37,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:37,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:37,873 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-09-25 04:35:37,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447103881] [2020-09-25 04:35:37,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:37,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:35:37,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118147412] [2020-09-25 04:35:37,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:35:37,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:37,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:35:37,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:35:37,876 INFO L87 Difference]: Start difference. First operand 192 states and 252 transitions. Second operand 7 states. [2020-09-25 04:35:38,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:38,067 INFO L93 Difference]: Finished difference Result 220 states and 283 transitions. [2020-09-25 04:35:38,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:35:38,068 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-09-25 04:35:38,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:38,071 INFO L225 Difference]: With dead ends: 220 [2020-09-25 04:35:38,071 INFO L226 Difference]: Without dead ends: 218 [2020-09-25 04:35:38,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:35:38,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-09-25 04:35:38,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 206. [2020-09-25 04:35:38,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-09-25 04:35:38,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 269 transitions. [2020-09-25 04:35:38,105 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 269 transitions. Word has length 79 [2020-09-25 04:35:38,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:38,107 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 269 transitions. [2020-09-25 04:35:38,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:35:38,107 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 269 transitions. [2020-09-25 04:35:38,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-25 04:35:38,109 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:38,109 INFO L422 BasicCegarLoop]: trace histogram [10, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:35:38,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 04:35:38,110 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:38,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:38,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1064000984, now seen corresponding path program 1 times [2020-09-25 04:35:38,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:38,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [737284731] [2020-09-25 04:35:38,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:38,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:38,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:38,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:38,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-25 04:35:38,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:38,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 462 [2020-09-25 04:35:38,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:38,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:38,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:35:38,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 04:35:38,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-25 04:35:38,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:38,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:38,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:38,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:38,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:35:38,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:38,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:35:38,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:38,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:38,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:38,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:38,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:38,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:35:38,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:35:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:38,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:38,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:38,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:38,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:38,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:35:38,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:38,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:38,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:38,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:38,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:38,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:38,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:35:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:38,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:38,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:38,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:38,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:38,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:38,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:38,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:38,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:38,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:38,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:38,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:38,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:35:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:38,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:38,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:38,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:38,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:38,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:38,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:38,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:38,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:38,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:38,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:38,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:38,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 04:35:38,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:38,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:38,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:38,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:38,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:38,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:35:38,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:38,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:38,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:38,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:38,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:38,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:38,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 04:35:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:38,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:38,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:38,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:38,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:38,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:38,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:38,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:38,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:38,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:38,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:38,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:38,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 04:35:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:38,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:38,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:38,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:38,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:38,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:38,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:35:38,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:38,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:38,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:38,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:38,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:38,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:38,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-25 04:35:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:38,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:38,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:38,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:38,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:38,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:35:38,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:38,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:38,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:38,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:38,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:38,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:38,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 04:35:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:38,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:38,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:38,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:38,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:38,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:38,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:38,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:38,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:38,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:38,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:38,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:38,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-09-25 04:35:38,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:38,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:38,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:38,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:38,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:38,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:38,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:38,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:38,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:38,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:38,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:38,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:38,793 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-09-25 04:35:38,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [737284731] [2020-09-25 04:35:38,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:38,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:35:38,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223361411] [2020-09-25 04:35:38,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:35:38,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:38,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:35:38,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:35:38,795 INFO L87 Difference]: Start difference. First operand 206 states and 269 transitions. Second operand 6 states. [2020-09-25 04:35:38,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:38,904 INFO L93 Difference]: Finished difference Result 244 states and 322 transitions. [2020-09-25 04:35:38,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:35:38,904 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 81 [2020-09-25 04:35:38,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:38,908 INFO L225 Difference]: With dead ends: 244 [2020-09-25 04:35:38,908 INFO L226 Difference]: Without dead ends: 238 [2020-09-25 04:35:38,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:35:38,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-25 04:35:38,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 230. [2020-09-25 04:35:38,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 04:35:38,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 302 transitions. [2020-09-25 04:35:38,933 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 302 transitions. Word has length 81 [2020-09-25 04:35:38,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:38,934 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 302 transitions. [2020-09-25 04:35:38,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:35:38,934 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 302 transitions. [2020-09-25 04:35:38,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-09-25 04:35:38,936 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:38,936 INFO L422 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:35:38,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 04:35:38,936 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:38,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:38,937 INFO L82 PathProgramCache]: Analyzing trace with hash -895183749, now seen corresponding path program 1 times [2020-09-25 04:35:38,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:38,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1222586922] [2020-09-25 04:35:38,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:38,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:39,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:39,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 04:35:39,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:39,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 379 [2020-09-25 04:35:39,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:39,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:39,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:35:39,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 04:35:39,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 04:35:39,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:39,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:39,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:39,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:39,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:35:39,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:39,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:35:39,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:39,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:39,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:39,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:39,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:39,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:39,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:35:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:39,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:39,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:39,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:39,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:39,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:35:39,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:39,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:39,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:39,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:39,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:39,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:39,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:35:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:39,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:39,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:39,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:39,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:39,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:39,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:39,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:39,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:39,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:39,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:39,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:39,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:35:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:39,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:39,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:39,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:39,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:39,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:35:39,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:39,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:39,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:39,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:39,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:39,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:39,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 04:35:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:39,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:39,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:39,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:39,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:39,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:39,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:39,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:39,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:39,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:39,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:39,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:39,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 04:35:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:39,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:39,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:39,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:39,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:39,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:39,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:39,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:39,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:39,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:39,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:39,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:39,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 04:35:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:39,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:39,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:39,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:39,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:39,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:35:39,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:39,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:39,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:39,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:39,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:39,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:39,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 04:35:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:39,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:39,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:39,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:39,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:39,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:39,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:39,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:39,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:39,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:39,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:39,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:39,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 04:35:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:39,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:39,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:39,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:39,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:39,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:39,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:39,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:39,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:39,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:39,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:39,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:39,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 04:35:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:39,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:39,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:39,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:39,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:39,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:39,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:39,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:39,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:39,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:39,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:39,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:39,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-25 04:35:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:39,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:39,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:39,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:39,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:39,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:35:39,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:39,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:39,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:39,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:39,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:39,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:39,642 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-09-25 04:35:39,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1222586922] [2020-09-25 04:35:39,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:39,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:35:39,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152663627] [2020-09-25 04:35:39,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:35:39,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:39,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:35:39,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:35:39,645 INFO L87 Difference]: Start difference. First operand 230 states and 302 transitions. Second operand 10 states. [2020-09-25 04:35:39,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:39,961 INFO L93 Difference]: Finished difference Result 236 states and 307 transitions. [2020-09-25 04:35:39,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 04:35:39,962 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2020-09-25 04:35:39,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:39,964 INFO L225 Difference]: With dead ends: 236 [2020-09-25 04:35:39,964 INFO L226 Difference]: Without dead ends: 234 [2020-09-25 04:35:39,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2020-09-25 04:35:39,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-09-25 04:35:39,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-09-25 04:35:39,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-25 04:35:39,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 305 transitions. [2020-09-25 04:35:39,997 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 305 transitions. Word has length 90 [2020-09-25 04:35:39,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:39,998 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 305 transitions. [2020-09-25 04:35:39,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:35:39,998 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 305 transitions. [2020-09-25 04:35:39,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-09-25 04:35:39,999 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:40,000 INFO L422 BasicCegarLoop]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:35:40,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 04:35:40,000 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:40,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:40,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1272604239, now seen corresponding path program 1 times [2020-09-25 04:35:40,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:40,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [186568932] [2020-09-25 04:35:40,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:40,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:40,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:40,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:42,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-25 04:35:42,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:35:42,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2003 [2020-09-25 04:35:42,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:42,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:42,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:35:42,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 04:35:42,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-25 04:35:42,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:42,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:42,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:42,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:35:42,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:42,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:35:42,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:42,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:42,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:42,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:42,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:42,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:42,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:35:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:42,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:42,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:42,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:42,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:35:42,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:42,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:42,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:42,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:42,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:42,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:42,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:35:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:42,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:42,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:42,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:42,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:35:42,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:42,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:42,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:42,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:42,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:42,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:42,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:35:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:42,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:42,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:42,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:42,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:35:42,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:42,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:42,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:42,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:42,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:42,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:42,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 04:35:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:42,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:42,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:42,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:42,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:35:42,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:42,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:42,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:42,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:42,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:42,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:42,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 04:35:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:42,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:42,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:42,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:42,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:35:42,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:42,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:42,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:42,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:42,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:42,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:42,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 04:35:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:42,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:42,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:42,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:42,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:35:42,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:42,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:42,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:42,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:42,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:42,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:42,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 04:35:42,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:42,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:42,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:42,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:42,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:42,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:42,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:42,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:42,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:42,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:42,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:42,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 04:35:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:42,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:42,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:42,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:42,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:35:42,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:42,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:42,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:42,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:42,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:42,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:42,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 04:35:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:42,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:42,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:42,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:42,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:35:42,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:42,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:42,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:42,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:42,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:42,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:42,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-25 04:35:42,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:42,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:42,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:42,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:42,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:35:42,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:42,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:42,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:42,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:42,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:42,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:42,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:35:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:42,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:42,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:42,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:42,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:42,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:42,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:42,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:42,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:42,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:42,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:42,281 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-09-25 04:35:42,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [186568932] [2020-09-25 04:35:42,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:42,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:35:42,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496265568] [2020-09-25 04:35:42,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:35:42,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:42,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:35:42,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:35:42,283 INFO L87 Difference]: Start difference. First operand 234 states and 305 transitions. Second operand 9 states. [2020-09-25 04:35:42,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:42,541 INFO L93 Difference]: Finished difference Result 262 states and 335 transitions. [2020-09-25 04:35:42,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:35:42,541 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-09-25 04:35:42,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:42,545 INFO L225 Difference]: With dead ends: 262 [2020-09-25 04:35:42,545 INFO L226 Difference]: Without dead ends: 260 [2020-09-25 04:35:42,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-09-25 04:35:42,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-09-25 04:35:42,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 246. [2020-09-25 04:35:42,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-09-25 04:35:42,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 318 transitions. [2020-09-25 04:35:42,577 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 318 transitions. Word has length 95 [2020-09-25 04:35:42,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:42,578 INFO L479 AbstractCegarLoop]: Abstraction has 246 states and 318 transitions. [2020-09-25 04:35:42,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:35:42,578 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 318 transitions. [2020-09-25 04:35:42,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-09-25 04:35:42,580 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:42,580 INFO L422 BasicCegarLoop]: trace histogram [14, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:35:42,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 04:35:42,580 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:42,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:42,581 INFO L82 PathProgramCache]: Analyzing trace with hash -960498755, now seen corresponding path program 1 times [2020-09-25 04:35:42,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:42,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [345100441] [2020-09-25 04:35:42,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:42,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:42,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:43,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:43,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:47,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:47,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-25 04:35:47,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:35:47,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 04:35:47,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:47,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:47,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:35:47,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 04:35:47,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-25 04:35:47,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:47,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:47,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:47,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:47,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:35:47,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:47,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:35:47,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:47,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:47,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:47,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:47,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:47,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:47,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:35:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:47,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:47,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:47,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:47,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:47,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:47,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:47,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:47,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:47,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:47,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:47,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:47,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:35:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:47,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:47,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:47,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:47,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:47,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:47,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:35:47,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:47,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:47,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:47,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:47,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:47,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:47,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:35:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:47,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:47,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:47,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:47,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:47,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:47,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:47,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:47,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:47,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:47,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:47,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:47,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 04:35:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:47,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:47,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:47,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:47,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:47,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:47,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:35:47,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:47,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:47,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:47,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:47,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:47,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:47,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 04:35:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:47,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:47,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:47,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:47,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:47,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:35:47,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:47,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:47,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:47,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:47,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:47,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:47,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 04:35:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:47,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:47,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:47,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:47,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:47,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:47,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:47,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:47,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:47,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:47,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:47,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-25 04:35:47,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:47,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:47,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:47,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:47,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:47,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:35:47,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:47,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:47,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:47,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:47,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:47,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:47,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 04:35:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:47,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:47,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:47,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:47,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:47,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:47,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:47,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:47,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:47,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:47,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:47,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:47,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-25 04:35:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:47,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:47,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:47,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:47,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:47,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:47,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:47,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:47,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:47,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:47,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:47,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:35:47,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-25 04:35:47,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:47,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:47,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:47,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:47,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:47,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:47,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:47,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:47,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:47,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:47,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:47,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:47,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 04:35:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:47,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:47,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:47,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:47,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:47,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:47,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:47,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:47,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:47,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:47,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:47,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:47,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:35:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:47,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:47,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:47,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:47,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:47,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:35:47,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:47,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:47,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:47,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:47,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:47,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:47,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 04:35:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:47,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:47,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:47,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:47,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:47,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 04:35:47,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:47,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:47,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:47,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:47,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:47,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:47,928 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-09-25 04:35:47,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [345100441] [2020-09-25 04:35:47,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:47,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:35:47,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593165740] [2020-09-25 04:35:47,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:35:47,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:47,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:35:47,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:35:47,932 INFO L87 Difference]: Start difference. First operand 246 states and 318 transitions. Second operand 8 states. [2020-09-25 04:35:48,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:48,249 INFO L93 Difference]: Finished difference Result 293 states and 378 transitions. [2020-09-25 04:35:48,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 04:35:48,251 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 110 [2020-09-25 04:35:48,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:48,255 INFO L225 Difference]: With dead ends: 293 [2020-09-25 04:35:48,255 INFO L226 Difference]: Without dead ends: 291 [2020-09-25 04:35:48,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:35:48,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-09-25 04:35:48,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 270. [2020-09-25 04:35:48,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-09-25 04:35:48,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 349 transitions. [2020-09-25 04:35:48,293 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 349 transitions. Word has length 110 [2020-09-25 04:35:48,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:48,294 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 349 transitions. [2020-09-25 04:35:48,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:35:48,294 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 349 transitions. [2020-09-25 04:35:48,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-09-25 04:35:48,298 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:48,298 INFO L422 BasicCegarLoop]: trace histogram [14, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:35:48,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 04:35:48,298 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:48,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:48,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1038471395, now seen corresponding path program 1 times [2020-09-25 04:35:48,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:48,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072714317] [2020-09-25 04:35:48,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:48,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:48,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:48,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:48,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:53,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:53,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-25 04:35:53,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:35:53,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 04:35:53,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:53,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:53,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:35:53,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 04:35:53,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-25 04:35:53,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:53,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:53,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:53,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:53,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:35:53,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:53,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:35:53,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:53,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:53,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:53,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:53,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:53,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:53,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:35:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:53,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:53,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:53,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:53,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:53,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:35:53,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:53,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:53,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:53,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:53,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:53,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:53,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:35:53,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:53,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:53,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:53,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:53,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:53,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:53,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 04:35:53,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:53,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:53,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:53,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:53,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:53,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:35:53,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:35:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:53,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:53,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:53,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:53,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:53,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:35:53,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:53,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:53,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:53,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:53,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:53,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:53,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 04:35:53,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:53,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:53,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:53,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:53,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:53,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:53,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 04:35:53,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:53,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:53,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:53,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:53,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:53,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:53,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 04:35:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:53,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:53,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:53,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:53,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:53,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:35:53,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:53,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:53,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:53,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:53,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:53,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:35:53,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 04:35:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:53,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:53,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:53,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:53,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:53,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:35:53,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:53,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:53,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:53,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:53,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:53,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:53,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 04:35:53,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:53,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:53,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:53,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:53,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:53,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:53,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:53,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:53,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:53,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:53,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:53,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:53,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 04:35:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:53,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:53,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:53,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:53,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:53,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:53,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:53,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:53,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:53,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:53,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:53,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:53,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 04:35:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:53,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:53,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:53,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:53,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:53,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:53,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:53,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:53,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:53,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:53,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:53,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:53,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-25 04:35:53,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:53,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:53,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:53,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:53,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:53,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:53,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:53,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:53,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:53,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:53,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:53,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:53,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:35:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:53,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:53,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:53,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:53,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:53,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:35:53,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:53,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:53,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:53,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:53,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:53,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:53,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-25 04:35:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:53,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:53,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:53,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:53,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:53,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:53,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:53,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:53,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:53,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:53,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:53,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:53,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 04:35:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:53,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:53,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:53,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:53,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:53,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:35:53,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:53,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:53,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:53,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:53,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:53,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:53,684 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-09-25 04:35:53,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1072714317] [2020-09-25 04:35:53,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:53,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:35:53,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188221116] [2020-09-25 04:35:53,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:35:53,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:53,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:35:53,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:35:53,691 INFO L87 Difference]: Start difference. First operand 270 states and 349 transitions. Second operand 9 states. [2020-09-25 04:35:54,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:54,089 INFO L93 Difference]: Finished difference Result 372 states and 494 transitions. [2020-09-25 04:35:54,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 04:35:54,090 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-09-25 04:35:54,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:54,094 INFO L225 Difference]: With dead ends: 372 [2020-09-25 04:35:54,095 INFO L226 Difference]: Without dead ends: 368 [2020-09-25 04:35:54,096 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-09-25 04:35:54,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-09-25 04:35:54,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 345. [2020-09-25 04:35:54,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-09-25 04:35:54,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 458 transitions. [2020-09-25 04:35:54,140 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 458 transitions. Word has length 110 [2020-09-25 04:35:54,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:54,142 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 458 transitions. [2020-09-25 04:35:54,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:35:54,143 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 458 transitions. [2020-09-25 04:35:54,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-09-25 04:35:54,148 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:54,148 INFO L422 BasicCegarLoop]: trace histogram [16, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:35:54,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 04:35:54,149 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:54,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:54,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1539222205, now seen corresponding path program 1 times [2020-09-25 04:35:54,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:54,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865686328] [2020-09-25 04:35:54,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:54,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:54,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:54,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:57,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:57,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-25 04:35:57,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:35:57,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3301 [2020-09-25 04:35:57,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:57,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:57,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:35:57,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 04:35:57,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-25 04:35:57,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:57,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:35:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:57,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:57,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:57,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:35:57,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:57,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:35:57,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:57,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:57,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:35:57,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:57,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:35:57,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:57,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:35:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:57,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:57,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:57,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:57,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:57,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:57,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:57,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:57,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:57,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:57,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:57,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:57,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:35:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:57,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:57,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:57,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:57,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:57,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:35:57,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:57,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:57,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:57,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:57,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:57,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:57,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:35:57,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:57,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:57,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:57,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:57,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:57,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:57,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:57,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:57,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:57,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:57,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:57,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:57,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 04:35:57,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:57,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:57,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:57,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:57,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:57,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:35:57,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:57,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:57,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:57,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:57,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:57,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:57,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 04:35:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:57,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:57,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:57,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:57,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:57,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:35:57,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:57,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:57,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:57,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:57,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:57,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:57,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 04:35:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:57,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:57,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:57,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:57,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:57,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:35:57,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:57,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:57,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:57,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:57,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:57,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:57,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:57,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-25 04:35:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:57,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:57,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:57,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:57,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:57,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:57,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:57,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:57,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:57,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:57,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:57,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:57,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 04:35:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:57,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:57,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:57,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:57,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:57,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:57,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:57,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:57,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:57,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:57,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:57,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:57,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-25 04:35:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:57,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:57,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:57,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:57,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:57,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:35:57,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:57,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:57,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:57,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:57,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:57,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:57,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-25 04:35:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:57,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:57,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:57,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:57,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:57,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:57,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:57,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:57,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:57,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:57,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:57,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:57,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 04:35:57,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:57,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:57,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:57,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:57,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:57,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:35:57,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:57,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:57,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:57,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:57,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:57,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:57,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:35:57,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:57,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:57,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:57,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:57,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:57,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:35:57,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:57,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:57,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:57,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:57,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:57,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:57,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 04:35:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:57,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:57,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:57,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:57,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:57,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:57,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:57,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:57,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:57,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:57,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:57,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:57,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-25 04:35:57,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:57,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:57,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:57,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:57,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:57,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:35:57,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:57,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:57,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:57,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:57,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:57,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:35:57,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-25 04:35:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:57,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:57,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:35:57,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:35:57,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:35:57,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:35:57,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:35:57,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:35:57,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:35:57,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:35:57,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:35:57,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:35:57,755 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-09-25 04:35:57,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865686328] [2020-09-25 04:35:57,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:35:57,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:35:57,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987239433] [2020-09-25 04:35:57,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:35:57,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:35:57,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:35:57,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:35:57,757 INFO L87 Difference]: Start difference. First operand 345 states and 458 transitions. Second operand 9 states. [2020-09-25 04:35:58,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:35:58,039 INFO L93 Difference]: Finished difference Result 379 states and 496 transitions. [2020-09-25 04:35:58,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:35:58,040 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 120 [2020-09-25 04:35:58,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:35:58,043 INFO L225 Difference]: With dead ends: 379 [2020-09-25 04:35:58,043 INFO L226 Difference]: Without dead ends: 377 [2020-09-25 04:35:58,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-09-25 04:35:58,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2020-09-25 04:35:58,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 359. [2020-09-25 04:35:58,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-09-25 04:35:58,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 475 transitions. [2020-09-25 04:35:58,070 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 475 transitions. Word has length 120 [2020-09-25 04:35:58,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:35:58,070 INFO L479 AbstractCegarLoop]: Abstraction has 359 states and 475 transitions. [2020-09-25 04:35:58,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:35:58,070 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 475 transitions. [2020-09-25 04:35:58,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-09-25 04:35:58,072 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:35:58,072 INFO L422 BasicCegarLoop]: trace histogram [16, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:35:58,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-25 04:35:58,073 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:35:58,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:35:58,073 INFO L82 PathProgramCache]: Analyzing trace with hash 871752502, now seen corresponding path program 1 times [2020-09-25 04:35:58,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:35:58,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [297504451] [2020-09-25 04:35:58,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:35:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:35:58,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:58,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:58,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:35:58,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:03,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:03,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-25 04:36:03,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:36:03,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 04:36:03,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:03,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:03,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:36:03,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 121 [2020-09-25 04:36:03,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 04:36:03,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:03,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:36:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:03,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:03,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:03,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:36:03,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:03,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:36:03,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:03,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:03,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:03,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:03,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:03,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:03,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:36:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:03,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:03,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:03,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:03,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:03,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:36:03,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:03,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:03,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:03,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:03,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:03,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:03,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:36:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:03,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:03,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:03,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:03,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:03,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:03,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:03,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:03,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:03,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:03,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:03,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:03,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:36:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:03,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:03,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:03,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:03,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:03,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:03,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:03,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:03,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:03,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:03,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:03,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:03,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 04:36:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:03,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:03,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:03,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:03,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:03,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:03,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:03,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:03,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:03,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:03,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:03,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:03,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 04:36:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:03,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:03,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:03,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:03,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:03,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:36:03,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:03,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:03,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:03,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:03,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:03,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:03,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 04:36:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:03,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:03,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:03,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:03,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:03,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:36:03,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:03,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:03,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:03,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:03,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:03,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:03,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 04:36:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:03,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:03,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:03,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:03,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:03,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:36:03,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:03,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:03,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:03,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:03,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:03,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:03,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 04:36:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:03,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:03,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:03,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:03,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:03,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:03,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:03,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:03,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:03,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:03,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:03,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:03,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 04:36:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:03,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:03,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:03,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:03,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:03,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:03,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:03,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:03,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:03,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:03,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:03,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:03,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-25 04:36:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:03,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:03,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:03,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:03,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:03,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:03,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:03,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:03,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:03,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:03,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:03,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:03,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:36:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:03,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:03,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:03,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:03,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:03,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:36:03,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:03,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:03,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:03,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:03,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:03,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:03,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-25 04:36:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:03,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:03,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:03,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:03,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:03,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:36:03,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:03,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:03,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:36:03,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:03,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:36:03,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:03,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 04:36:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:03,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:03,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:03,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:03,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:03,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:36:03,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:03,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:03,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:36:03,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:03,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:36:03,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:03,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-25 04:36:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:03,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:03,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:03,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:03,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:03,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:36:03,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:03,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:03,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:36:03,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:03,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:36:03,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:36:03,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-25 04:36:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:03,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:03,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:03,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:03,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:03,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:36:03,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:03,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:03,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:36:03,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:03,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:36:03,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:03,318 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 64 proven. 10 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2020-09-25 04:36:03,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [297504451] [2020-09-25 04:36:03,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:36:03,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 04:36:03,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133423656] [2020-09-25 04:36:03,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:36:03,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:36:03,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:36:03,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:36:03,321 INFO L87 Difference]: Start difference. First operand 359 states and 475 transitions. Second operand 8 states. [2020-09-25 04:36:03,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:36:03,690 INFO L93 Difference]: Finished difference Result 399 states and 532 transitions. [2020-09-25 04:36:03,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:36:03,691 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2020-09-25 04:36:03,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:36:03,694 INFO L225 Difference]: With dead ends: 399 [2020-09-25 04:36:03,694 INFO L226 Difference]: Without dead ends: 393 [2020-09-25 04:36:03,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:36:03,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2020-09-25 04:36:03,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 375. [2020-09-25 04:36:03,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-25 04:36:03,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 501 transitions. [2020-09-25 04:36:03,722 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 501 transitions. Word has length 120 [2020-09-25 04:36:03,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:36:03,723 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 501 transitions. [2020-09-25 04:36:03,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:36:03,723 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 501 transitions. [2020-09-25 04:36:03,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-25 04:36:03,725 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:36:03,726 INFO L422 BasicCegarLoop]: trace histogram [18, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:36:03,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-25 04:36:03,726 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:36:03,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:36:03,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1668448602, now seen corresponding path program 1 times [2020-09-25 04:36:03,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:36:03,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1016276225] [2020-09-25 04:36:03,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:36:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:03,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:03,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:04,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:04,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:08,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:08,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-25 04:36:08,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:36:08,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 04:36:08,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:08,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:08,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:36:08,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 154 [2020-09-25 04:36:08,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:36:08,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:08,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:36:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:08,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:08,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:08,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:36:08,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:08,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:36:08,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:08,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:08,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:08,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:08,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:08,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:08,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:36:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:08,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:08,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:08,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:08,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:08,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:08,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:08,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:08,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:08,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:08,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:08,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:08,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:36:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:08,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:08,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:08,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:08,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:08,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:36:08,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:08,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:08,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:08,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:08,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:08,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:08,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:36:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:08,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:08,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:08,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:08,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:08,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:36:08,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:08,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:08,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:08,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:08,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:08,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:08,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 04:36:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:08,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:08,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:08,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:08,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:08,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:08,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:08,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:08,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:08,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:08,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:08,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:08,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 04:36:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:08,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:08,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:08,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:08,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:08,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:08,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:08,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:08,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:08,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:08,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:08,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:08,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 04:36:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:08,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:08,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:08,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:08,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:08,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:08,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:08,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:08,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:08,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:08,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:08,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:08,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-25 04:36:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:08,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:08,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:08,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:08,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:08,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:36:08,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:08,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:08,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:08,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:08,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:08,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:08,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 04:36:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:08,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:08,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:08,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:08,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:08,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:36:08,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:08,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:08,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:08,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:08,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:08,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:08,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-25 04:36:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:08,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:08,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:08,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:08,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:08,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:08,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:08,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:08,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:08,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:08,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:08,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:36:08,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-25 04:36:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:08,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:08,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:08,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:08,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:08,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:08,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:08,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:08,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:08,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:08,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:08,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:36:08,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 04:36:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:08,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:08,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:08,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:08,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:08,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:08,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:08,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:08,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:08,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:08,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:08,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:08,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:36:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:08,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:08,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:08,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:08,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:08,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:08,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:08,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:08,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:08,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:08,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:08,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:08,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 04:36:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:08,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:08,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:08,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:08,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:08,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:08,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:08,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:08,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:08,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:08,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:08,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:08,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-25 04:36:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:08,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:08,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:08,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:08,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:08,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:36:08,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:08,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:08,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:08,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:08,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:08,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:08,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-25 04:36:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:08,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:08,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:08,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:08,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:08,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:08,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:08,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:08,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:08,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:08,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:08,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:08,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 04:36:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:08,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:08,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:08,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:08,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:08,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:36:08,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:08,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:36:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:08,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:36:08,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:08,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 04:36:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:08,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:08,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:08,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:08,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:08,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:36:08,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:08,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:08,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:36:08,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:08,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:36:08,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:08,958 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 78 proven. 4 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2020-09-25 04:36:08,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1016276225] [2020-09-25 04:36:08,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:36:08,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 04:36:08,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662578942] [2020-09-25 04:36:08,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:36:08,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:36:08,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:36:08,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:36:08,961 INFO L87 Difference]: Start difference. First operand 375 states and 501 transitions. Second operand 7 states. [2020-09-25 04:36:09,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:36:09,189 INFO L93 Difference]: Finished difference Result 389 states and 516 transitions. [2020-09-25 04:36:09,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:36:09,189 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 136 [2020-09-25 04:36:09,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:36:09,192 INFO L225 Difference]: With dead ends: 389 [2020-09-25 04:36:09,193 INFO L226 Difference]: Without dead ends: 387 [2020-09-25 04:36:09,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:36:09,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2020-09-25 04:36:09,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 375. [2020-09-25 04:36:09,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-25 04:36:09,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 501 transitions. [2020-09-25 04:36:09,217 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 501 transitions. Word has length 136 [2020-09-25 04:36:09,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:36:09,218 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 501 transitions. [2020-09-25 04:36:09,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:36:09,218 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 501 transitions. [2020-09-25 04:36:09,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 04:36:09,220 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:36:09,220 INFO L422 BasicCegarLoop]: trace histogram [20, 19, 19, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:36:09,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-25 04:36:09,221 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:36:09,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:36:09,221 INFO L82 PathProgramCache]: Analyzing trace with hash 362381850, now seen corresponding path program 1 times [2020-09-25 04:36:09,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:36:09,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354992861] [2020-09-25 04:36:09,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:36:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:09,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:09,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:09,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:09,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:10,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:10,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 04:36:14,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:36:14,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 04:36:14,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:36:14,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-09-25 04:36:14,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 04:36:14,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:14,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:36:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:36:14,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:36:14,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:14,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:14,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 04:36:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:14,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:14,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:14,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:14,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:14,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:36:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:14,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:14,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:14,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:14,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:14,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:36:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:14,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:14,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:14,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:14,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:14,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 04:36:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:14,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:36:14,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:14,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:14,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:14,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 04:36:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:14,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:14,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:14,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:14,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:14,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 04:36:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:14,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:14,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:14,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:14,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:14,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-25 04:36:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:14,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:14,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:14,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:14,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:14,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 04:36:14,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:14,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:14,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:14,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:14,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:14,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-25 04:36:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:14,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:14,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:14,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:14,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:14,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-25 04:36:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:14,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:36:14,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:14,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:14,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:14,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 04:36:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:14,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:14,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:14,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:14,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:36:14,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:36:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:14,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:14,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:14,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:14,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:14,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 04:36:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:14,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:36:14,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:14,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:14,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:14,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-25 04:36:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:14,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:36:14,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:36:14,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:36:14,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:36:14,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-25 04:36:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:14,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:36:14,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:36:14,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:36:14,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:14,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 04:36:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:14,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:36:14,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:36:14,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:36:14,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:14,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 04:36:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:14,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:36:14,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:36:14,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:36:14,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:36:14,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 04:36:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:14,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:36:14,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:36:14,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:36:14,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:36:14,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 04:36:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:14,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:36:14,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:14,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:36:14,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:14,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:14,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:36:14,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:14,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:36:14,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:36:14,535 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 84 proven. 16 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2020-09-25 04:36:14,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354992861] [2020-09-25 04:36:14,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:36:14,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 04:36:14,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889379613] [2020-09-25 04:36:14,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:36:14,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:36:14,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:36:14,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:36:14,538 INFO L87 Difference]: Start difference. First operand 375 states and 501 transitions. Second operand 8 states. [2020-09-25 04:36:14,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:36:14,779 INFO L93 Difference]: Finished difference Result 397 states and 525 transitions. [2020-09-25 04:36:14,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:36:14,779 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 151 [2020-09-25 04:36:14,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:36:14,782 INFO L225 Difference]: With dead ends: 397 [2020-09-25 04:36:14,782 INFO L226 Difference]: Without dead ends: 393 [2020-09-25 04:36:14,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:36:14,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2020-09-25 04:36:14,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2020-09-25 04:36:14,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-09-25 04:36:14,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 518 transitions. [2020-09-25 04:36:14,815 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 518 transitions. Word has length 151 [2020-09-25 04:36:14,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:36:14,816 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 518 transitions. [2020-09-25 04:36:14,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:36:14,816 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 518 transitions. [2020-09-25 04:36:14,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 04:36:14,818 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:36:14,818 INFO L422 BasicCegarLoop]: trace histogram [20, 19, 19, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:36:14,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-25 04:36:14,819 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:36:14,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:36:14,819 INFO L82 PathProgramCache]: Analyzing trace with hash -978309232, now seen corresponding path program 2 times [2020-09-25 04:36:14,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:36:14,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1686502605] [2020-09-25 04:36:14,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:36:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:14,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:14,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:15,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:15,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:15,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking...