/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-tiling/rewnifrev.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 00:08:52,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 00:08:52,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 00:08:52,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 00:08:52,995 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 00:08:52,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 00:08:52,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 00:08:53,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 00:08:53,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 00:08:53,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 00:08:53,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 00:08:53,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 00:08:53,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 00:08:53,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 00:08:53,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 00:08:53,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 00:08:53,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 00:08:53,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 00:08:53,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 00:08:53,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 00:08:53,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 00:08:53,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 00:08:53,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 00:08:53,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 00:08:53,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 00:08:53,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 00:08:53,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 00:08:53,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 00:08:53,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 00:08:53,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 00:08:53,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 00:08:53,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 00:08:53,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 00:08:53,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 00:08:53,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 00:08:53,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 00:08:53,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 00:08:53,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 00:08:53,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 00:08:53,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 00:08:53,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 00:08:53,033 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 00:08:53,059 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 00:08:53,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 00:08:53,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 00:08:53,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 00:08:53,061 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 00:08:53,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 00:08:53,062 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 00:08:53,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 00:08:53,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 00:08:53,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 00:08:53,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 00:08:53,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 00:08:53,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 00:08:53,063 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 00:08:53,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 00:08:53,064 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 00:08:53,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 00:08:53,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 00:08:53,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 00:08:53,065 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 00:08:53,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 00:08:53,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 00:08:53,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 00:08:53,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 00:08:53,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 00:08:53,066 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 00:08:53,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 00:08:53,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 00:08:53,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 00:08:53,067 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 00:08:53,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 00:08:53,368 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 00:08:53,371 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 00:08:53,373 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 00:08:53,373 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 00:08:53,374 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/rewnifrev.c [2020-10-14 00:08:53,448 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8ac8baf0/c4ae8fbb48754378ad17e006493184ee/FLAG75ee3ab96 [2020-10-14 00:08:53,932 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 00:08:53,932 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-tiling/rewnifrev.c [2020-10-14 00:08:53,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8ac8baf0/c4ae8fbb48754378ad17e006493184ee/FLAG75ee3ab96 [2020-10-14 00:08:54,313 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8ac8baf0/c4ae8fbb48754378ad17e006493184ee [2020-10-14 00:08:54,324 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 00:08:54,327 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 00:08:54,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 00:08:54,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 00:08:54,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 00:08:54,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:08:54" (1/1) ... [2020-10-14 00:08:54,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240fc400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:54, skipping insertion in model container [2020-10-14 00:08:54,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:08:54" (1/1) ... [2020-10-14 00:08:54,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 00:08:54,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 00:08:54,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:08:54,546 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 00:08:54,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:08:54,581 INFO L208 MainTranslator]: Completed translation [2020-10-14 00:08:54,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:54 WrapperNode [2020-10-14 00:08:54,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 00:08:54,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 00:08:54,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 00:08:54,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 00:08:54,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:54" (1/1) ... [2020-10-14 00:08:54,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:54" (1/1) ... [2020-10-14 00:08:54,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:54" (1/1) ... [2020-10-14 00:08:54,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:54" (1/1) ... [2020-10-14 00:08:54,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:54" (1/1) ... [2020-10-14 00:08:54,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:54" (1/1) ... [2020-10-14 00:08:54,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:54" (1/1) ... [2020-10-14 00:08:54,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 00:08:54,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 00:08:54,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 00:08:54,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 00:08:54,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:54" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 00:08:54,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 00:08:54,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 00:08:54,773 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 00:08:54,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 00:08:54,773 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 00:08:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 00:08:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 00:08:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 00:08:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 00:08:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 00:08:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 00:08:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 00:08:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 00:08:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 00:08:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 00:08:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 00:08:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 00:08:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 00:08:55,089 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 00:08:55,089 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-14 00:08:55,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:08:55 BoogieIcfgContainer [2020-10-14 00:08:55,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 00:08:55,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 00:08:55,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 00:08:55,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 00:08:55,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:08:54" (1/3) ... [2020-10-14 00:08:55,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f18a00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:08:55, skipping insertion in model container [2020-10-14 00:08:55,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:54" (2/3) ... [2020-10-14 00:08:55,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f18a00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:08:55, skipping insertion in model container [2020-10-14 00:08:55,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:08:55" (3/3) ... [2020-10-14 00:08:55,102 INFO L109 eAbstractionObserver]: Analyzing ICFG rewnifrev.c [2020-10-14 00:08:55,112 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 00:08:55,117 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 00:08:55,129 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 00:08:55,150 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 00:08:55,150 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 00:08:55,151 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 00:08:55,151 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 00:08:55,151 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 00:08:55,151 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 00:08:55,151 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 00:08:55,151 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 00:08:55,170 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-10-14 00:08:55,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 00:08:55,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:08:55,176 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:08:55,177 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:08:55,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:08:55,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1564765221, now seen corresponding path program 1 times [2020-10-14 00:08:55,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:08:55,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1500562277] [2020-10-14 00:08:55,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:08:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:55,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:55,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:55,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 00:08:55,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:55,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-14 00:08:55,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:55,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:55,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:08:55,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:08:55,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 00:08:55,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-14 00:08:55,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:08:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:55,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:55,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:55,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:08:55,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:55,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 00:08:55,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:55,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:55,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:08:55,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:55,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:08:55,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:55,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:08:55,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1500562277] [2020-10-14 00:08:55,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 00:08:55,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 00:08:55,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094249488] [2020-10-14 00:08:55,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 00:08:55,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:08:55,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 00:08:55,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 00:08:55,621 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 4 states. [2020-10-14 00:08:55,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:08:55,754 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2020-10-14 00:08:55,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 00:08:55,756 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-14 00:08:55,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:08:55,765 INFO L225 Difference]: With dead ends: 51 [2020-10-14 00:08:55,766 INFO L226 Difference]: Without dead ends: 26 [2020-10-14 00:08:55,769 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 00:08:55,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-14 00:08:55,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2020-10-14 00:08:55,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-14 00:08:55,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2020-10-14 00:08:55,806 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 14 [2020-10-14 00:08:55,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:08:55,807 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2020-10-14 00:08:55,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 00:08:55,807 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2020-10-14 00:08:55,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-14 00:08:55,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:08:55,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:08:55,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 00:08:55,809 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:08:55,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:08:55,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1138009376, now seen corresponding path program 1 times [2020-10-14 00:08:55,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:08:55,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [223346135] [2020-10-14 00:08:55,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:08:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:55,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:55,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:56,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:56,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:56,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 00:08:56,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:08:56,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 395 [2020-10-14 00:08:56,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:56,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:56,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 00:08:56,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:08:56,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:08:56,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 00:08:56,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:08:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:56,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:56,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:56,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:08:56,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:56,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:08:56,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:56,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:56,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:08:56,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:56,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:08:56,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:56,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:08:56,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [223346135] [2020-10-14 00:08:56,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:08:56,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:08:56,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205037118] [2020-10-14 00:08:56,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:08:56,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:08:56,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:08:56,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:08:56,337 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 5 states. [2020-10-14 00:08:56,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:08:56,430 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2020-10-14 00:08:56,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:08:56,430 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-14 00:08:56,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:08:56,434 INFO L225 Difference]: With dead ends: 42 [2020-10-14 00:08:56,434 INFO L226 Difference]: Without dead ends: 31 [2020-10-14 00:08:56,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:08:56,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-14 00:08:56,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2020-10-14 00:08:56,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-14 00:08:56,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2020-10-14 00:08:56,448 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 18 [2020-10-14 00:08:56,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:08:56,448 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2020-10-14 00:08:56,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:08:56,448 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2020-10-14 00:08:56,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-14 00:08:56,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:08:56,449 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:08:56,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 00:08:56,450 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:08:56,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:08:56,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1844234969, now seen corresponding path program 1 times [2020-10-14 00:08:56,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:08:56,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660051007] [2020-10-14 00:08:56,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:08:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:56,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:56,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:56,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:56,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:56,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:56,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:56,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:56,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:57,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:57,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 00:08:57,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 00:08:57,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1440 [2020-10-14 00:08:57,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:57,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:57,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 00:08:57,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:08:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 00:08:57,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:58,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:08:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:58,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:58,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:08:58,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:08:58,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:08:58,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:08:58,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:08:58,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:08:58,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:08:58,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:08:58,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:08:58,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:08:58,099 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:08:58,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660051007] [2020-10-14 00:08:58,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:08:58,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 00:08:58,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338119257] [2020-10-14 00:08:58,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 00:08:58,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:08:58,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 00:08:58,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:08:58,104 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 12 states. [2020-10-14 00:08:58,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:08:58,504 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2020-10-14 00:08:58,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 00:08:58,505 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-14 00:08:58,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:08:58,506 INFO L225 Difference]: With dead ends: 37 [2020-10-14 00:08:58,507 INFO L226 Difference]: Without dead ends: 35 [2020-10-14 00:08:58,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2020-10-14 00:08:58,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-14 00:08:58,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2020-10-14 00:08:58,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-14 00:08:58,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2020-10-14 00:08:58,516 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 22 [2020-10-14 00:08:58,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:08:58,516 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2020-10-14 00:08:58,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 00:08:58,517 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2020-10-14 00:08:58,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-14 00:08:58,518 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:08:58,518 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:08:58,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 00:08:58,519 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:08:58,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:08:58,519 INFO L82 PathProgramCache]: Analyzing trace with hash 2097899152, now seen corresponding path program 1 times [2020-10-14 00:08:58,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:08:58,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [665550503] [2020-10-14 00:08:58,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:08:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:08:58,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:58,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:58,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:58,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:58,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:08:59,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:00,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:00,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 00:09:00,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 00:09:00,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1677 [2020-10-14 00:09:00,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:00,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:00,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 00:09:00,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:09:00,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 00:09:00,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:00,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:00,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:00,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:00,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:00,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:00,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:00,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:00,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:00,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:00,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:00,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:00,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:00,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 00:09:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:00,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:00,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:00,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:00,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:00,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 00:09:00,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:00,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:00,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:00,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:00,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:00,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:00,567 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:09:00,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [665550503] [2020-10-14 00:09:00,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:00,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 00:09:00,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518054250] [2020-10-14 00:09:00,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 00:09:00,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:00,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 00:09:00,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-14 00:09:00,570 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 13 states. [2020-10-14 00:09:01,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:01,302 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2020-10-14 00:09:01,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 00:09:01,303 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2020-10-14 00:09:01,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:01,304 INFO L225 Difference]: With dead ends: 48 [2020-10-14 00:09:01,304 INFO L226 Difference]: Without dead ends: 46 [2020-10-14 00:09:01,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=115, Invalid=485, Unknown=0, NotChecked=0, Total=600 [2020-10-14 00:09:01,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-14 00:09:01,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2020-10-14 00:09:01,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-14 00:09:01,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2020-10-14 00:09:01,314 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 30 [2020-10-14 00:09:01,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:01,314 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2020-10-14 00:09:01,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 00:09:01,315 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2020-10-14 00:09:01,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-14 00:09:01,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:01,316 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:01,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 00:09:01,317 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:01,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:01,318 INFO L82 PathProgramCache]: Analyzing trace with hash -95790265, now seen corresponding path program 2 times [2020-10-14 00:09:01,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:01,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1999274523] [2020-10-14 00:09:01,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:01,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:01,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:01,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:01,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 00:09:01,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:09:01,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-14 00:09:01,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:01,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:01,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 00:09:01,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:09:01,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 00:09:01,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:01,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:01,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:01,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:01,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:01,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:01,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:01,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:01,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:01,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:01,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:01,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:01,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:01,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 00:09:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:01,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:01,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:01,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:01,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:01,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:01,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:01,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:01,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:01,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:01,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:01,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:01,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 00:09:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:01,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:01,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:01,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:01,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:01,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:01,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:01,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:01,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:01,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:01,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:01,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:01,722 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 00:09:01,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1999274523] [2020-10-14 00:09:01,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:01,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 00:09:01,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106189460] [2020-10-14 00:09:01,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 00:09:01,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:01,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 00:09:01,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 00:09:01,725 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 8 states. [2020-10-14 00:09:01,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:01,996 INFO L93 Difference]: Finished difference Result 88 states and 94 transitions. [2020-10-14 00:09:01,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 00:09:01,997 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2020-10-14 00:09:01,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:02,000 INFO L225 Difference]: With dead ends: 88 [2020-10-14 00:09:02,000 INFO L226 Difference]: Without dead ends: 53 [2020-10-14 00:09:02,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-14 00:09:02,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-14 00:09:02,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 45. [2020-10-14 00:09:02,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-14 00:09:02,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2020-10-14 00:09:02,009 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 38 [2020-10-14 00:09:02,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:02,010 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2020-10-14 00:09:02,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 00:09:02,010 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2020-10-14 00:09:02,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-14 00:09:02,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:02,011 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:02,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 00:09:02,012 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:02,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:02,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1561203522, now seen corresponding path program 3 times [2020-10-14 00:09:02,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:02,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [545144455] [2020-10-14 00:09:02,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:02,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:02,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:02,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:02,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 00:09:02,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:09:02,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 673 [2020-10-14 00:09:02,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:02,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:02,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 00:09:02,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 00:09:02,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 00:09:02,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:02,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:02,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:02,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:02,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:02,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:02,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:02,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:02,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:02,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:02,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:02,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:02,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:02,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 00:09:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:02,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:02,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:02,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:02,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:02,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:02,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:02,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:02,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:02,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:02,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:02,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:02,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 00:09:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:02,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:02,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:02,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:02,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:02,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:02,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:02,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:02,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:02,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:02,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:02,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:03,004 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 11 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 00:09:03,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [545144455] [2020-10-14 00:09:03,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:03,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 00:09:03,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364636199] [2020-10-14 00:09:03,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 00:09:03,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:03,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 00:09:03,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-14 00:09:03,007 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand 14 states. [2020-10-14 00:09:03,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:03,969 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2020-10-14 00:09:03,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 00:09:03,970 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 42 [2020-10-14 00:09:03,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:03,971 INFO L225 Difference]: With dead ends: 60 [2020-10-14 00:09:03,972 INFO L226 Difference]: Without dead ends: 58 [2020-10-14 00:09:03,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=157, Invalid=773, Unknown=0, NotChecked=0, Total=930 [2020-10-14 00:09:03,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-14 00:09:03,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 53. [2020-10-14 00:09:03,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-14 00:09:03,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2020-10-14 00:09:03,984 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 42 [2020-10-14 00:09:03,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:03,985 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2020-10-14 00:09:03,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 00:09:03,986 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2020-10-14 00:09:03,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-14 00:09:03,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:03,987 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:03,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 00:09:03,988 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:03,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:03,988 INFO L82 PathProgramCache]: Analyzing trace with hash -898222599, now seen corresponding path program 4 times [2020-10-14 00:09:03,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:03,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839456911] [2020-10-14 00:09:03,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:04,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:04,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:04,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:04,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-14 00:09:04,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:09:04,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 556 [2020-10-14 00:09:04,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:04,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:04,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 00:09:04,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:09:04,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 00:09:04,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:04,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:04,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:04,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:04,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:04,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:04,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:09:04,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:04,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:04,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:04,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:04,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:04,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 00:09:04,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 00:09:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:04,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:04,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:04,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:04,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:04,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:04,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:04,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:04,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:04,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:04,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:04,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:04,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 00:09:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:04,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:04,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:04,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:04,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:04,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:04,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:04,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:04,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:04,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:04,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:04,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:04,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 00:09:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:04,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:04,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:04,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:04,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:04,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:04,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:04,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:04,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:04,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:04,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:04,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 00:09:04,680 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 24 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 00:09:04,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839456911] [2020-10-14 00:09:04,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:04,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 00:09:04,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256811043] [2020-10-14 00:09:04,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 00:09:04,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:04,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 00:09:04,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 00:09:04,683 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 8 states. [2020-10-14 00:09:04,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:04,907 INFO L93 Difference]: Finished difference Result 102 states and 107 transitions. [2020-10-14 00:09:04,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 00:09:04,908 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2020-10-14 00:09:04,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:04,909 INFO L225 Difference]: With dead ends: 102 [2020-10-14 00:09:04,909 INFO L226 Difference]: Without dead ends: 59 [2020-10-14 00:09:04,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-14 00:09:04,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-14 00:09:04,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 57. [2020-10-14 00:09:04,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-14 00:09:04,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2020-10-14 00:09:04,919 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 50 [2020-10-14 00:09:04,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:04,919 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2020-10-14 00:09:04,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 00:09:04,919 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2020-10-14 00:09:04,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-14 00:09:04,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:04,921 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:04,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 00:09:04,921 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:04,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:04,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1529426572, now seen corresponding path program 5 times [2020-10-14 00:09:04,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:04,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962569719] [2020-10-14 00:09:04,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:04,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:05,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:05,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:05,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 00:09:05,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:09:05,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1046 [2020-10-14 00:09:05,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:05,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:05,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 00:09:05,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 00:09:05,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 00:09:05,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:06,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:06,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:06,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:06,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:06,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:06,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:06,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:06,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:06,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:06,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:06,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:06,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:06,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 00:09:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:06,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:06,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:06,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:06,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:06,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:06,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:06,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:06,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:06,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:06,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:06,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:06,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 00:09:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:06,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:06,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:06,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:06,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:06,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:06,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:06,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:06,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:06,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:06,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:06,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:06,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 00:09:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:06,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:06,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:06,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:06,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:06,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:06,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:06,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:06,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:06,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:06,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:06,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 00:09:06,417 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 16 proven. 36 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 00:09:06,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [962569719] [2020-10-14 00:09:06,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:06,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 00:09:06,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547947776] [2020-10-14 00:09:06,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 00:09:06,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:06,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 00:09:06,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-10-14 00:09:06,422 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand 15 states. [2020-10-14 00:09:07,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:07,522 INFO L93 Difference]: Finished difference Result 72 states and 75 transitions. [2020-10-14 00:09:07,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 00:09:07,523 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 54 [2020-10-14 00:09:07,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:07,524 INFO L225 Difference]: With dead ends: 72 [2020-10-14 00:09:07,524 INFO L226 Difference]: Without dead ends: 70 [2020-10-14 00:09:07,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 11 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=210, Invalid=1050, Unknown=0, NotChecked=0, Total=1260 [2020-10-14 00:09:07,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-14 00:09:07,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2020-10-14 00:09:07,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-14 00:09:07,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 67 transitions. [2020-10-14 00:09:07,541 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 67 transitions. Word has length 54 [2020-10-14 00:09:07,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:07,543 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 67 transitions. [2020-10-14 00:09:07,543 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 00:09:07,543 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 67 transitions. [2020-10-14 00:09:07,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-14 00:09:07,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:07,546 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:07,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 00:09:07,546 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:07,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:07,546 INFO L82 PathProgramCache]: Analyzing trace with hash 2017631787, now seen corresponding path program 6 times [2020-10-14 00:09:07,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:07,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1447578182] [2020-10-14 00:09:07,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:07,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:07,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:08,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:08,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-14 00:09:08,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:09:08,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 880 [2020-10-14 00:09:08,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:08,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:08,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 00:09:08,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:09:08,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 00:09:08,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:08,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:08,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:08,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:08,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:08,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:08,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:08,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:08,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:08,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:08,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:08,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:08,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:08,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 00:09:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:08,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:08,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:08,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:08,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:08,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:08,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:08,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:08,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:08,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:08,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:08,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:08,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 00:09:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:08,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:08,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:08,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:08,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:08,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:08,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:08,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:08,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:08,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:08,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:08,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:08,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 00:09:08,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:08,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:08,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:08,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:08,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:08,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:08,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:08,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:08,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:08,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 00:09:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:08,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:08,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:08,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:08,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:08,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:08,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:08,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:08,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:08,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:08,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:08,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:08,563 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 40 proven. 28 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 00:09:08,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1447578182] [2020-10-14 00:09:08,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:08,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 00:09:08,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713769961] [2020-10-14 00:09:08,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 00:09:08,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:08,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 00:09:08,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-14 00:09:08,571 INFO L87 Difference]: Start difference. First operand 65 states and 67 transitions. Second operand 9 states. [2020-10-14 00:09:08,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:08,824 INFO L93 Difference]: Finished difference Result 122 states and 127 transitions. [2020-10-14 00:09:08,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 00:09:08,824 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-10-14 00:09:08,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:08,826 INFO L225 Difference]: With dead ends: 122 [2020-10-14 00:09:08,828 INFO L226 Difference]: Without dead ends: 71 [2020-10-14 00:09:08,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-14 00:09:08,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-14 00:09:08,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2020-10-14 00:09:08,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-14 00:09:08,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 71 transitions. [2020-10-14 00:09:08,845 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 71 transitions. Word has length 62 [2020-10-14 00:09:08,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:08,846 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 71 transitions. [2020-10-14 00:09:08,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 00:09:08,846 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2020-10-14 00:09:08,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-14 00:09:08,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:08,847 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:08,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 00:09:08,848 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:08,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:08,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1536371418, now seen corresponding path program 7 times [2020-10-14 00:09:08,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:08,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445264411] [2020-10-14 00:09:08,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:08,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:09,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:10,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:10,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 00:09:10,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:09:10,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1632 [2020-10-14 00:09:10,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:10,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:10,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 00:09:10,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 00:09:10,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 00:09:10,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:10,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:10,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:10,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:10,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:10,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:10,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:10,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:10,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:10,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:10,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:10,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:10,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:10,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 00:09:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:10,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:10,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:10,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:10,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:10,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:10,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:10,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:10,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:10,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:10,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:10,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:10,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 00:09:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:10,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:10,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:10,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:10,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:10,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:10,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:10,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:10,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:10,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:10,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:10,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:10,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 00:09:10,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:10,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:10,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:10,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:10,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:10,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:10,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:10,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:10,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:10,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:10,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:10,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:10,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 00:09:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:10,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:10,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:10,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:10,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:10,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 00:09:10,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:10,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:10,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:10,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:10,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:10,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:10,918 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 21 proven. 64 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 00:09:10,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1445264411] [2020-10-14 00:09:10,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:10,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 00:09:10,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968194512] [2020-10-14 00:09:10,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 00:09:10,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:10,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 00:09:10,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-10-14 00:09:10,921 INFO L87 Difference]: Start difference. First operand 69 states and 71 transitions. Second operand 16 states. [2020-10-14 00:09:12,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:12,400 INFO L93 Difference]: Finished difference Result 84 states and 87 transitions. [2020-10-14 00:09:12,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-14 00:09:12,401 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 66 [2020-10-14 00:09:12,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:12,403 INFO L225 Difference]: With dead ends: 84 [2020-10-14 00:09:12,403 INFO L226 Difference]: Without dead ends: 82 [2020-10-14 00:09:12,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 15 SyntacticMatches, 8 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=265, Invalid=1295, Unknown=0, NotChecked=0, Total=1560 [2020-10-14 00:09:12,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-14 00:09:12,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 77. [2020-10-14 00:09:12,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-14 00:09:12,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 79 transitions. [2020-10-14 00:09:12,421 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 79 transitions. Word has length 66 [2020-10-14 00:09:12,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:12,421 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 79 transitions. [2020-10-14 00:09:12,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 00:09:12,422 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 79 transitions. [2020-10-14 00:09:12,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-14 00:09:12,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:12,424 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:12,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 00:09:12,426 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:12,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:12,426 INFO L82 PathProgramCache]: Analyzing trace with hash 2021053405, now seen corresponding path program 8 times [2020-10-14 00:09:12,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:12,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623456299] [2020-10-14 00:09:12,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:12,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:12,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:13,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:13,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 00:09:13,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:09:13,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 712 [2020-10-14 00:09:13,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:13,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:13,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 00:09:13,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:09:13,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 00:09:13,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:13,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:13,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:13,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:13,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:13,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:13,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:13,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:13,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:13,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:13,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:13,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:13,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:13,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 00:09:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:13,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:13,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:13,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:13,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:13,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:13,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:13,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:13,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:13,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:13,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:13,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:13,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 00:09:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:13,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:13,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:13,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:13,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:13,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:13,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:13,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:13,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:13,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:13,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:13,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:13,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 00:09:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:13,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:13,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:13,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:13,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:13,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:13,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:13,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:13,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:13,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:13,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:13,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:13,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 00:09:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:13,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:13,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:13,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:13,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:13,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:13,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:13,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:13,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:13,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:13,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:13,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:13,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 00:09:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:13,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:13,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:13,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:13,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:13,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:13,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:13,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:13,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:13,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:13,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:13,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:13,304 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 43 proven. 62 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-14 00:09:13,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623456299] [2020-10-14 00:09:13,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:13,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 00:09:13,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130277637] [2020-10-14 00:09:13,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 00:09:13,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:13,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 00:09:13,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 00:09:13,307 INFO L87 Difference]: Start difference. First operand 77 states and 79 transitions. Second operand 11 states. [2020-10-14 00:09:13,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:13,647 INFO L93 Difference]: Finished difference Result 142 states and 147 transitions. [2020-10-14 00:09:13,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 00:09:13,648 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 74 [2020-10-14 00:09:13,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:13,649 INFO L225 Difference]: With dead ends: 142 [2020-10-14 00:09:13,649 INFO L226 Difference]: Without dead ends: 83 [2020-10-14 00:09:13,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2020-10-14 00:09:13,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-14 00:09:13,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2020-10-14 00:09:13,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-14 00:09:13,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 83 transitions. [2020-10-14 00:09:13,665 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 83 transitions. Word has length 74 [2020-10-14 00:09:13,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:13,665 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 83 transitions. [2020-10-14 00:09:13,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 00:09:13,665 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 83 transitions. [2020-10-14 00:09:13,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-14 00:09:13,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:13,669 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:13,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 00:09:13,669 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:13,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:13,670 INFO L82 PathProgramCache]: Analyzing trace with hash 863464024, now seen corresponding path program 9 times [2020-10-14 00:09:13,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:13,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139198114] [2020-10-14 00:09:13,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:13,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:13,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:13,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:15,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:15,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 00:09:15,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:09:15,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2228 [2020-10-14 00:09:15,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:15,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:15,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 00:09:15,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 00:09:15,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 00:09:15,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:16,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:16,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:16,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:16,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:16,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:16,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:16,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:16,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:16,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:16,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:16,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:16,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:16,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 00:09:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:16,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:16,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:16,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:16,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:16,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:16,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:16,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:16,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:16,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:16,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:16,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:16,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 00:09:16,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:16,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:16,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:16,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:16,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:16,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:16,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:16,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:16,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:16,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:16,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:16,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:16,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 00:09:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:16,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:16,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:16,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:16,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:16,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:16,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:16,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:16,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:16,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:16,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:16,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:16,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 00:09:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:16,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:16,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:16,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:16,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:16,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:16,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:16,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:16,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:16,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:16,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:16,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:16,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 00:09:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:16,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:16,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:16,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:16,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:16,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:16,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:16,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:16,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:16,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:16,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:16,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:16,391 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 26 proven. 100 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-14 00:09:16,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139198114] [2020-10-14 00:09:16,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:16,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 00:09:16,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107480131] [2020-10-14 00:09:16,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 00:09:16,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:16,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 00:09:16,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2020-10-14 00:09:16,395 INFO L87 Difference]: Start difference. First operand 81 states and 83 transitions. Second operand 17 states. [2020-10-14 00:09:18,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:18,294 INFO L93 Difference]: Finished difference Result 96 states and 99 transitions. [2020-10-14 00:09:18,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-14 00:09:18,295 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 78 [2020-10-14 00:09:18,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:18,296 INFO L225 Difference]: With dead ends: 96 [2020-10-14 00:09:18,296 INFO L226 Difference]: Without dead ends: 94 [2020-10-14 00:09:18,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 18 SyntacticMatches, 11 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=340, Invalid=1730, Unknown=0, NotChecked=0, Total=2070 [2020-10-14 00:09:18,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-14 00:09:18,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 89. [2020-10-14 00:09:18,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-14 00:09:18,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 91 transitions. [2020-10-14 00:09:18,306 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 91 transitions. Word has length 78 [2020-10-14 00:09:18,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:18,307 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 91 transitions. [2020-10-14 00:09:18,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 00:09:18,307 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 91 transitions. [2020-10-14 00:09:18,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-14 00:09:18,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:18,308 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:18,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 00:09:18,308 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:18,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:18,309 INFO L82 PathProgramCache]: Analyzing trace with hash 662312719, now seen corresponding path program 10 times [2020-10-14 00:09:18,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:18,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1809474247] [2020-10-14 00:09:18,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:18,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:18,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:19,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:19,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 00:09:19,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:09:19,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 813 [2020-10-14 00:09:19,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:19,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:19,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 00:09:19,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:09:19,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 00:09:19,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:19,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:19,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:19,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:19,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:19,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:19,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:19,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:19,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:19,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:19,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:19,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:19,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:19,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 00:09:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:19,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:19,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:19,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:19,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:19,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:19,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:19,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:19,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:19,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:19,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:19,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:19,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 00:09:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:19,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:19,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:19,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:19,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:19,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:19,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:19,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:19,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:19,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:19,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:19,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:19,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 00:09:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:19,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:19,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:19,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:19,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:19,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:19,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:19,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:19,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:19,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:19,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:19,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:19,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 00:09:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:19,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:19,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:19,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:19,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:19,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:19,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:19,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:19,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:19,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:19,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:19,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:19,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 00:09:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:19,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:19,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:19,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:19,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:19,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:19,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:19,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:19,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:19,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:19,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:19,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:19,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 00:09:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:19,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:19,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:19,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:19,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:19,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 00:09:19,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:19,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:19,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:19,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:19,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:19,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:19,309 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 84 proven. 66 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 00:09:19,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1809474247] [2020-10-14 00:09:19,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:19,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 00:09:19,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751982564] [2020-10-14 00:09:19,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 00:09:19,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:19,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 00:09:19,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:09:19,313 INFO L87 Difference]: Start difference. First operand 89 states and 91 transitions. Second operand 12 states. [2020-10-14 00:09:19,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:19,758 INFO L93 Difference]: Finished difference Result 168 states and 174 transitions. [2020-10-14 00:09:19,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 00:09:19,759 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 86 [2020-10-14 00:09:19,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:19,761 INFO L225 Difference]: With dead ends: 168 [2020-10-14 00:09:19,761 INFO L226 Difference]: Without dead ends: 101 [2020-10-14 00:09:19,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2020-10-14 00:09:19,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-10-14 00:09:19,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 93. [2020-10-14 00:09:19,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-14 00:09:19,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 95 transitions. [2020-10-14 00:09:19,781 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 95 transitions. Word has length 86 [2020-10-14 00:09:19,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:19,782 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 95 transitions. [2020-10-14 00:09:19,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 00:09:19,782 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 95 transitions. [2020-10-14 00:09:19,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-14 00:09:19,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:19,783 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:19,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 00:09:19,784 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:19,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:19,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1052914422, now seen corresponding path program 11 times [2020-10-14 00:09:19,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:19,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2125071851] [2020-10-14 00:09:19,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:19,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:19,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:20,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:22,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:22,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 00:09:22,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:09:22,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2344 [2020-10-14 00:09:22,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:22,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:22,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 00:09:22,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 00:09:22,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-14 00:09:22,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:22,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:22,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:22,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:22,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:22,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:22,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:22,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:22,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:22,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:22,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:22,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:22,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:22,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 00:09:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:22,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:22,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:22,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:22,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:22,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:22,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:22,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:22,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:22,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:22,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:22,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:22,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 00:09:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:22,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:22,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:22,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:22,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:22,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:22,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:22,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:22,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:22,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:22,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:22,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:22,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 00:09:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:22,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:22,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:22,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:22,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:22,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:22,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:22,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:22,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:22,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:22,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:22,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:22,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 00:09:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:22,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:22,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:22,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:22,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:22,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:22,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:22,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:22,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:22,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:22,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:22,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:22,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 00:09:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:22,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:22,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:22,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:22,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:22,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:22,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:22,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:22,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:22,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:22,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:22,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:22,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 00:09:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:22,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:22,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:22,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:22,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:22,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:22,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:22,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:22,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:22,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:22,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:22,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:22,797 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 31 proven. 144 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 00:09:22,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2125071851] [2020-10-14 00:09:22,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:22,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 00:09:22,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946187718] [2020-10-14 00:09:22,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 00:09:22,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:22,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 00:09:22,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2020-10-14 00:09:22,799 INFO L87 Difference]: Start difference. First operand 93 states and 95 transitions. Second operand 18 states. [2020-10-14 00:09:25,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:25,019 INFO L93 Difference]: Finished difference Result 108 states and 111 transitions. [2020-10-14 00:09:25,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-14 00:09:25,019 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 90 [2020-10-14 00:09:25,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:25,021 INFO L225 Difference]: With dead ends: 108 [2020-10-14 00:09:25,021 INFO L226 Difference]: Without dead ends: 106 [2020-10-14 00:09:25,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 21 SyntacticMatches, 14 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=414, Invalid=2036, Unknown=0, NotChecked=0, Total=2450 [2020-10-14 00:09:25,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-14 00:09:25,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 101. [2020-10-14 00:09:25,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-14 00:09:25,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 103 transitions. [2020-10-14 00:09:25,034 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 103 transitions. Word has length 90 [2020-10-14 00:09:25,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:25,034 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 103 transitions. [2020-10-14 00:09:25,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 00:09:25,034 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 103 transitions. [2020-10-14 00:09:25,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-14 00:09:25,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:25,035 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:25,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 00:09:25,036 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:25,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:25,036 INFO L82 PathProgramCache]: Analyzing trace with hash -648828991, now seen corresponding path program 12 times [2020-10-14 00:09:25,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:25,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1290211081] [2020-10-14 00:09:25,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:25,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:25,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:26,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:26,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 00:09:26,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:09:26,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1123 [2020-10-14 00:09:26,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:26,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:26,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 00:09:26,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:09:26,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 00:09:26,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:26,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:26,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:26,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:26,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:26,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:26,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:26,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:26,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:26,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:26,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:26,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:26,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:26,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 00:09:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:26,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:26,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:26,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:26,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:26,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:26,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:26,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:26,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:26,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:26,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:26,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:26,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 00:09:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:26,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:26,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:26,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:26,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:26,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:26,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:26,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:26,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:26,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:26,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:26,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:26,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 00:09:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:26,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:26,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:26,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:26,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:26,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:26,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:26,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:26,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:26,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:26,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:26,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:26,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 00:09:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:26,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:26,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:26,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:26,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:26,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:26,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:26,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:26,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:26,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:26,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:26,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:26,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 00:09:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:26,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:26,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:26,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:26,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:26,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:26,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:26,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:26,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:26,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:26,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:26,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:26,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 00:09:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:26,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:26,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:26,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:26,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:26,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:26,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:26,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:26,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:26,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:26,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:26,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:26,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 00:09:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:26,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:26,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:26,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:26,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:26,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:26,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:26,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:26,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:26,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:26,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:26,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:26,371 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 112 proven. 91 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-14 00:09:26,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1290211081] [2020-10-14 00:09:26,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:26,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 00:09:26,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087550212] [2020-10-14 00:09:26,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 00:09:26,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:26,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 00:09:26,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:09:26,375 INFO L87 Difference]: Start difference. First operand 101 states and 103 transitions. Second operand 12 states. [2020-10-14 00:09:26,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:26,845 INFO L93 Difference]: Finished difference Result 182 states and 187 transitions. [2020-10-14 00:09:26,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 00:09:26,846 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 98 [2020-10-14 00:09:26,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:26,847 INFO L225 Difference]: With dead ends: 182 [2020-10-14 00:09:26,847 INFO L226 Difference]: Without dead ends: 107 [2020-10-14 00:09:26,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2020-10-14 00:09:26,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-14 00:09:26,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2020-10-14 00:09:26,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-14 00:09:26,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 107 transitions. [2020-10-14 00:09:26,859 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 107 transitions. Word has length 98 [2020-10-14 00:09:26,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:26,859 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 107 transitions. [2020-10-14 00:09:26,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 00:09:26,859 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 107 transitions. [2020-10-14 00:09:26,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-14 00:09:26,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:26,861 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:26,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 00:09:26,861 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:26,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:26,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1688681788, now seen corresponding path program 13 times [2020-10-14 00:09:26,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:26,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166887148] [2020-10-14 00:09:26,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:26,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:27,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:29,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:29,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 00:09:29,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:09:29,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2503 [2020-10-14 00:09:29,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:29,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:29,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-14 00:09:29,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 00:09:29,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 00:09:29,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:30,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:30,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:30,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:30,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:30,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:30,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:30,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:30,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:30,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:30,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:30,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:30,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:30,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 00:09:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:30,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:30,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:30,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:30,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:30,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:30,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:30,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:30,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:30,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:30,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:30,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:30,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 00:09:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:30,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:30,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:30,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:30,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:30,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:30,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:30,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:30,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:30,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:30,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:30,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:30,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 00:09:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:30,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:30,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:30,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:30,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:30,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:30,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:30,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:30,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:30,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:30,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:30,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:30,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 00:09:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:30,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:30,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:30,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:30,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:30,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:30,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:30,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:30,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:30,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:30,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:30,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:30,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 00:09:30,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:30,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:30,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:30,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:30,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:30,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:30,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:30,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:30,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:30,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:30,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:30,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:30,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 00:09:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:30,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:30,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:30,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:30,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:30,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:30,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:30,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:30,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:30,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:30,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:30,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:30,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 00:09:30,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:30,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:30,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:30,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:30,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:30,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:30,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:30,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:30,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:30,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:30,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:30,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:30,338 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 36 proven. 196 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-14 00:09:30,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [166887148] [2020-10-14 00:09:30,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:30,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 00:09:30,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340375863] [2020-10-14 00:09:30,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 00:09:30,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:30,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 00:09:30,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2020-10-14 00:09:30,340 INFO L87 Difference]: Start difference. First operand 105 states and 107 transitions. Second operand 19 states. [2020-10-14 00:09:33,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:33,510 INFO L93 Difference]: Finished difference Result 120 states and 123 transitions. [2020-10-14 00:09:33,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-14 00:09:33,510 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 102 [2020-10-14 00:09:33,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:33,512 INFO L225 Difference]: With dead ends: 120 [2020-10-14 00:09:33,512 INFO L226 Difference]: Without dead ends: 118 [2020-10-14 00:09:33,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 25 SyntacticMatches, 18 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 487 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=552, Invalid=2528, Unknown=0, NotChecked=0, Total=3080 [2020-10-14 00:09:33,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-14 00:09:33,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 113. [2020-10-14 00:09:33,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-14 00:09:33,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 115 transitions. [2020-10-14 00:09:33,525 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 115 transitions. Word has length 102 [2020-10-14 00:09:33,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:33,526 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 115 transitions. [2020-10-14 00:09:33,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 00:09:33,526 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 115 transitions. [2020-10-14 00:09:33,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 00:09:33,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:33,527 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:33,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 00:09:33,528 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:33,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:33,528 INFO L82 PathProgramCache]: Analyzing trace with hash -374684173, now seen corresponding path program 14 times [2020-10-14 00:09:33,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:33,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2125144606] [2020-10-14 00:09:33,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:33,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:33,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:34,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:34,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 00:09:34,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:09:34,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1288 [2020-10-14 00:09:34,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:34,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:34,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 00:09:34,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:09:34,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 00:09:34,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:34,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:34,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:34,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:34,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:34,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:34,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:34,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:34,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:34,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:34,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:34,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:34,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:34,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 00:09:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:34,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:34,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:34,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:34,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:34,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:34,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:34,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:34,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:34,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:34,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:34,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:34,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 00:09:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:34,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:34,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:34,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:34,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:34,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:34,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:34,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:34,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:34,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:34,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:34,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:34,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 00:09:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:34,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:34,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:34,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:34,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:34,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:34,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:34,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:34,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:34,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:34,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:34,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:34,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 00:09:34,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:34,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:34,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:34,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:34,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:34,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:34,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:35,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:35,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:35,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:35,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:35,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:35,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 00:09:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:35,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:35,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:35,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:35,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:35,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:35,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:35,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:35,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:35,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:35,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:35,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:35,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 00:09:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:35,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:35,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:35,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:35,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:35,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:35,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:35,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:35,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:35,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:35,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:35,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:35,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 00:09:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:35,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:35,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:35,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:35,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:35,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:35,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:35,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:35,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:35,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:35,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:35,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:35,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 00:09:35,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:35,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:35,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:35,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:35,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:35,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:35,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:35,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:35,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:35,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:35,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:35,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:35,058 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 144 proven. 120 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-14 00:09:35,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2125144606] [2020-10-14 00:09:35,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:35,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 00:09:35,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561440901] [2020-10-14 00:09:35,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 00:09:35,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:35,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 00:09:35,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2020-10-14 00:09:35,061 INFO L87 Difference]: Start difference. First operand 113 states and 115 transitions. Second operand 14 states. [2020-10-14 00:09:35,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:35,652 INFO L93 Difference]: Finished difference Result 208 states and 214 transitions. [2020-10-14 00:09:35,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-14 00:09:35,653 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 110 [2020-10-14 00:09:35,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:35,655 INFO L225 Difference]: With dead ends: 208 [2020-10-14 00:09:35,655 INFO L226 Difference]: Without dead ends: 125 [2020-10-14 00:09:35,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2020-10-14 00:09:35,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-14 00:09:35,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 117. [2020-10-14 00:09:35,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-14 00:09:35,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 119 transitions. [2020-10-14 00:09:35,667 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 119 transitions. Word has length 110 [2020-10-14 00:09:35,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:35,668 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 119 transitions. [2020-10-14 00:09:35,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 00:09:35,668 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 119 transitions. [2020-10-14 00:09:35,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-14 00:09:35,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:35,669 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:35,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 00:09:35,670 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:35,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:35,670 INFO L82 PathProgramCache]: Analyzing trace with hash -331678994, now seen corresponding path program 15 times [2020-10-14 00:09:35,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:35,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923147716] [2020-10-14 00:09:35,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:35,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:36,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:38,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:38,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 00:09:38,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:09:38,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2925 [2020-10-14 00:09:38,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:38,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:38,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-14 00:09:38,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 00:09:38,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 00:09:38,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:39,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:39,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:39,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:39,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:39,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:39,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:39,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:39,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:39,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:39,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:39,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:39,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:39,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 00:09:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:39,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:39,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:39,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:39,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:39,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:39,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:39,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:39,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:39,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:39,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:39,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:39,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 00:09:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:39,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:39,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:39,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:39,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:39,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:39,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:39,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:39,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:39,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:39,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:39,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 00:09:39,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 00:09:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:39,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:39,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:39,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:39,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:39,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:39,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:39,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:39,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:39,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:39,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:39,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:39,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 00:09:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:39,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:39,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:39,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:39,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:39,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:39,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:39,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:39,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:39,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:39,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:39,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:39,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 00:09:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:39,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:39,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:39,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:39,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:39,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:39,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:39,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:39,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:39,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:39,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:39,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:39,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 00:09:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:39,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:39,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:39,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:39,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:39,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:39,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:39,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:39,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:39,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:39,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:39,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:39,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 00:09:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:39,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:39,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:39,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:39,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:39,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:39,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:39,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:39,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:39,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:39,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:39,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:39,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 00:09:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:39,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:39,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:39,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:39,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:39,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:09:39,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:39,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:39,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:39,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:39,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:39,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:39,836 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 41 proven. 256 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-14 00:09:39,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923147716] [2020-10-14 00:09:39,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:39,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-14 00:09:39,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574347089] [2020-10-14 00:09:39,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 00:09:39,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:39,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 00:09:39,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2020-10-14 00:09:39,847 INFO L87 Difference]: Start difference. First operand 117 states and 119 transitions. Second operand 20 states. [2020-10-14 00:09:43,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:43,574 INFO L93 Difference]: Finished difference Result 132 states and 135 transitions. [2020-10-14 00:09:43,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-14 00:09:43,575 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 114 [2020-10-14 00:09:43,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:43,577 INFO L225 Difference]: With dead ends: 132 [2020-10-14 00:09:43,577 INFO L226 Difference]: Without dead ends: 130 [2020-10-14 00:09:43,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 28 SyntacticMatches, 21 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=660, Invalid=3122, Unknown=0, NotChecked=0, Total=3782 [2020-10-14 00:09:43,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-14 00:09:43,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 125. [2020-10-14 00:09:43,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-14 00:09:43,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 127 transitions. [2020-10-14 00:09:43,590 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 127 transitions. Word has length 114 [2020-10-14 00:09:43,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:43,591 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 127 transitions. [2020-10-14 00:09:43,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 00:09:43,591 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 127 transitions. [2020-10-14 00:09:43,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-14 00:09:43,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:43,592 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:43,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 00:09:43,592 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:43,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:43,592 INFO L82 PathProgramCache]: Analyzing trace with hash -876170843, now seen corresponding path program 16 times [2020-10-14 00:09:43,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:43,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869035924] [2020-10-14 00:09:43,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:43,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:43,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:43,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:45,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:45,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-14 00:09:45,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:09:45,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1494 [2020-10-14 00:09:45,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:45,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:45,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 00:09:45,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:09:45,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 00:09:45,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:45,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:45,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:45,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:45,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:45,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:45,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:45,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:45,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:45,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:45,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:45,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:45,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:45,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 00:09:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:45,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:45,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:45,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:45,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:45,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:45,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:45,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:45,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:45,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:45,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:45,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:45,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 00:09:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:45,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:45,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:45,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:45,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:45,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:45,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:45,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:45,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:45,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:45,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:45,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:45,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 00:09:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:45,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:45,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:45,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:45,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:45,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:45,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:45,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:45,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:45,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:45,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:45,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:45,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 00:09:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:45,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:45,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:45,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:45,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:45,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:45,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:45,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:45,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:45,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:45,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:45,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:45,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 00:09:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:45,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:45,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:45,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:45,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:45,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:45,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:45,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:45,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:45,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:45,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:45,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:45,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 00:09:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:45,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:45,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:45,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:45,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:45,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:45,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:45,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:45,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:45,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:45,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:45,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:45,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 00:09:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:45,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:45,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:45,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:45,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:45,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:45,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:45,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:45,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:45,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:45,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:45,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:45,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 00:09:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:45,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:45,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:45,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:45,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:45,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:45,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:45,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:45,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:45,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:45,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:45,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:45,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 00:09:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:45,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:45,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:45,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:45,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:45,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:45,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:45,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:45,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:45,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:45,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:45,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:45,288 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 180 proven. 153 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-14 00:09:45,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869035924] [2020-10-14 00:09:45,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:45,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 00:09:45,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878511147] [2020-10-14 00:09:45,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 00:09:45,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:45,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 00:09:45,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2020-10-14 00:09:45,290 INFO L87 Difference]: Start difference. First operand 125 states and 127 transitions. Second operand 14 states. [2020-10-14 00:09:45,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:45,902 INFO L93 Difference]: Finished difference Result 222 states and 227 transitions. [2020-10-14 00:09:45,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-14 00:09:45,905 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 122 [2020-10-14 00:09:45,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:45,906 INFO L225 Difference]: With dead ends: 222 [2020-10-14 00:09:45,907 INFO L226 Difference]: Without dead ends: 131 [2020-10-14 00:09:45,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2020-10-14 00:09:45,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-14 00:09:45,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2020-10-14 00:09:45,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-14 00:09:45,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 131 transitions. [2020-10-14 00:09:45,918 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 131 transitions. Word has length 122 [2020-10-14 00:09:45,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:45,919 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 131 transitions. [2020-10-14 00:09:45,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 00:09:45,919 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 131 transitions. [2020-10-14 00:09:45,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-14 00:09:45,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:45,920 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:45,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 00:09:45,921 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:45,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:45,921 INFO L82 PathProgramCache]: Analyzing trace with hash -299874784, now seen corresponding path program 17 times [2020-10-14 00:09:45,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:45,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [512799214] [2020-10-14 00:09:45,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:45,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:47,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:49,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:49,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-14 00:09:49,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:09:49,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3904 [2020-10-14 00:09:49,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:49,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:49,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-14 00:09:49,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 00:09:49,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 00:09:49,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:50,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:50,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:50,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:50,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:50,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:50,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:50,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:50,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:50,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:50,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:50,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:50,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:50,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 00:09:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:50,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:50,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:50,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:50,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:50,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:50,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:50,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:50,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:50,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:50,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:50,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:50,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 00:09:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:50,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:50,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:50,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:50,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:50,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:50,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:50,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:50,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:50,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:50,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:50,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:50,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 00:09:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:50,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:50,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:50,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:50,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:50,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:50,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:50,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:50,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:50,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:50,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:50,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:50,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 00:09:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:50,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:50,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:50,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:50,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:50,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:50,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:50,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:50,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:50,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:50,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:50,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 00:09:50,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 00:09:50,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:50,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:50,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:50,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:50,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:50,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:50,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:50,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:50,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:50,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:50,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:50,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:50,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 00:09:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:50,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:50,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:50,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:50,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:50,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:50,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:50,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:50,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:50,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:50,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:50,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:50,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 00:09:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:51,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:51,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:51,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:51,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:51,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:51,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:51,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:51,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:51,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:51,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:51,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:51,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 00:09:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:51,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:51,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:51,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:51,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:51,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:09:51,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:51,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:51,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:51,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:51,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:51,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:09:51,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-14 00:09:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:51,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:51,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:51,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:51,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:51,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:09:51,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:51,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:51,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:51,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:51,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:51,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:51,117 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 53 proven. 317 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-14 00:09:51,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [512799214] [2020-10-14 00:09:51,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:51,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 00:09:51,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353361673] [2020-10-14 00:09:51,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 00:09:51,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:51,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 00:09:51,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2020-10-14 00:09:51,121 INFO L87 Difference]: Start difference. First operand 129 states and 131 transitions. Second operand 23 states. [2020-10-14 00:09:54,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:54,217 INFO L93 Difference]: Finished difference Result 142 states and 145 transitions. [2020-10-14 00:09:54,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-14 00:09:54,219 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 126 [2020-10-14 00:09:54,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:54,220 INFO L225 Difference]: With dead ends: 142 [2020-10-14 00:09:54,221 INFO L226 Difference]: Without dead ends: 140 [2020-10-14 00:09:54,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 30 SyntacticMatches, 21 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 732 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=640, Invalid=3142, Unknown=0, NotChecked=0, Total=3782 [2020-10-14 00:09:54,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-14 00:09:54,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2020-10-14 00:09:54,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-14 00:09:54,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 139 transitions. [2020-10-14 00:09:54,234 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 139 transitions. Word has length 126 [2020-10-14 00:09:54,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:54,234 INFO L479 AbstractCegarLoop]: Abstraction has 137 states and 139 transitions. [2020-10-14 00:09:54,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 00:09:54,235 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 139 transitions. [2020-10-14 00:09:54,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-14 00:09:54,236 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:54,236 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:54,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 00:09:54,236 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:54,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:54,237 INFO L82 PathProgramCache]: Analyzing trace with hash 445557463, now seen corresponding path program 18 times [2020-10-14 00:09:54,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:54,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972931753] [2020-10-14 00:09:54,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:54,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:54,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:56,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:56,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-14 00:09:56,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:09:56,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1812 [2020-10-14 00:09:56,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:56,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:56,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 00:09:56,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:09:56,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-14 00:09:56,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:56,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:09:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:56,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:56,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:56,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:09:56,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:56,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:56,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:56,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:56,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:09:56,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:56,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:09:56,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:56,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 00:09:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:56,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:56,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:56,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:56,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:56,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:56,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:56,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:56,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:56,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:56,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:56,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:56,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 00:09:56,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:56,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:56,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:56,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:56,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:56,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:56,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:56,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:56,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:56,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:56,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:56,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:56,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 00:09:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:56,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:56,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:56,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:56,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:56,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:56,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:56,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:56,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:56,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:56,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:56,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:56,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 00:09:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:56,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:56,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:56,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:56,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:56,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:56,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:56,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:56,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:56,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:56,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:56,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:56,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 00:09:56,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:56,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:56,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:56,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:56,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:56,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:56,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:56,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:56,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:56,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:56,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:56,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:56,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 00:09:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:56,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:56,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:56,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:56,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:56,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:09:56,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:56,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:56,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:56,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:56,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:56,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:56,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 00:09:56,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:56,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:56,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:56,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:56,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:56,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:56,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:56,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:56,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:56,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:56,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:56,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:56,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 00:09:56,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:56,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:56,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:56,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:56,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:56,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:56,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:56,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:56,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:56,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:56,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:56,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:56,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-14 00:09:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:56,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:56,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:56,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:56,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:56,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:56,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:56,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:56,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:56,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:56,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:56,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:56,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-14 00:09:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:56,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:56,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:09:56,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:09:56,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:09:56,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:09:56,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:09:56,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:09:56,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:09:56,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:09:56,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:09:56,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:09:56,274 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 220 proven. 190 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-14 00:09:56,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972931753] [2020-10-14 00:09:56,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:09:56,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 00:09:56,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974858735] [2020-10-14 00:09:56,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 00:09:56,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:09:56,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 00:09:56,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2020-10-14 00:09:56,276 INFO L87 Difference]: Start difference. First operand 137 states and 139 transitions. Second operand 15 states. [2020-10-14 00:09:57,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:09:57,071 INFO L93 Difference]: Finished difference Result 242 states and 247 transitions. [2020-10-14 00:09:57,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-14 00:09:57,072 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 134 [2020-10-14 00:09:57,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:09:57,075 INFO L225 Difference]: With dead ends: 242 [2020-10-14 00:09:57,075 INFO L226 Difference]: Without dead ends: 143 [2020-10-14 00:09:57,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=240, Invalid=462, Unknown=0, NotChecked=0, Total=702 [2020-10-14 00:09:57,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-10-14 00:09:57,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 141. [2020-10-14 00:09:57,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-10-14 00:09:57,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 143 transitions. [2020-10-14 00:09:57,087 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 143 transitions. Word has length 134 [2020-10-14 00:09:57,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:09:57,087 INFO L479 AbstractCegarLoop]: Abstraction has 141 states and 143 transitions. [2020-10-14 00:09:57,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 00:09:57,087 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 143 transitions. [2020-10-14 00:09:57,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-14 00:09:57,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:09:57,089 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:09:57,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 00:09:57,089 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:09:57,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:09:57,089 INFO L82 PathProgramCache]: Analyzing trace with hash -669098286, now seen corresponding path program 19 times [2020-10-14 00:09:57,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:09:57,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923178131] [2020-10-14 00:09:57,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:09:57,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:09:57,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:09:57,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:01,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:01,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 00:10:01,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:10:01,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4834 [2020-10-14 00:10:01,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:01,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:01,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-14 00:10:01,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 00:10:01,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-14 00:10:01,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:03,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:10:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:03,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:03,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:03,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:10:03,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:03,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:03,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:03,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:03,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:10:03,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:03,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:10:03,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:03,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 00:10:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:03,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:03,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:03,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:03,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:03,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:03,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:03,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:03,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:03,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:03,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:03,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:03,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 00:10:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:03,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:03,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:03,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:03,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:03,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:03,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:03,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:03,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:03,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:03,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:03,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:03,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 00:10:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:03,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:03,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:03,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:03,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:03,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:03,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:03,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:03,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:03,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:03,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:03,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:03,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 00:10:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:03,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:03,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:03,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:03,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:03,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:03,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:03,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:03,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:03,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:03,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:03,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:03,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 00:10:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:03,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:03,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:03,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:03,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:03,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:10:03,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:03,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:03,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:03,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:03,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:03,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:03,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 00:10:03,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:03,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:03,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:03,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:03,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:03,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:03,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:03,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:03,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:03,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:03,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 00:10:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:03,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:03,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:03,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:03,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:03,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:03,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:03,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:03,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:03,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:03,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:03,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:03,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 00:10:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:03,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:03,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:03,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:03,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:03,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:10:03,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:03,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:03,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:03,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:03,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:03,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:03,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 00:10:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:03,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:03,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:03,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:03,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:03,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:03,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:03,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:03,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:03,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:03,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 00:10:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:03,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:03,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:03,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:03,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:03,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:10:03,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:03,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:03,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:03,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:03,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:03,192 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 51 proven. 400 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-14 00:10:03,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923178131] [2020-10-14 00:10:03,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:10:03,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-14 00:10:03,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804020913] [2020-10-14 00:10:03,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 00:10:03,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:10:03,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 00:10:03,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2020-10-14 00:10:03,194 INFO L87 Difference]: Start difference. First operand 141 states and 143 transitions. Second operand 22 states. [2020-10-14 00:10:06,652 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2020-10-14 00:10:08,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:10:08,439 INFO L93 Difference]: Finished difference Result 156 states and 159 transitions. [2020-10-14 00:10:08,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-10-14 00:10:08,441 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 138 [2020-10-14 00:10:08,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:10:08,442 INFO L225 Difference]: With dead ends: 156 [2020-10-14 00:10:08,443 INFO L226 Difference]: Without dead ends: 154 [2020-10-14 00:10:08,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 34 SyntacticMatches, 27 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 868 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=893, Invalid=4219, Unknown=0, NotChecked=0, Total=5112 [2020-10-14 00:10:08,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-14 00:10:08,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 149. [2020-10-14 00:10:08,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-14 00:10:08,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 151 transitions. [2020-10-14 00:10:08,457 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 151 transitions. Word has length 138 [2020-10-14 00:10:08,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:10:08,457 INFO L479 AbstractCegarLoop]: Abstraction has 149 states and 151 transitions. [2020-10-14 00:10:08,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 00:10:08,458 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 151 transitions. [2020-10-14 00:10:08,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-14 00:10:08,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:10:08,459 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:10:08,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 00:10:08,460 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:10:08,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:10:08,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1467354743, now seen corresponding path program 20 times [2020-10-14 00:10:08,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:10:08,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852919721] [2020-10-14 00:10:08,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:10:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:08,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:08,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:10,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:10,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 00:10:10,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:10:10,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2049 [2020-10-14 00:10:10,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:10,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:10,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 00:10:10,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:10:10,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 00:10:10,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:10,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:10:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:10,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:10,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:10,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:10:10,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:10,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:10,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:10,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:10,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:10:10,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:10,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:10:10,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:10,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 00:10:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:10,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:10,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:10,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:10,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:10,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:10,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:10,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:10,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:10,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:10,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:10,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:10,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 00:10:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:10,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:10,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:10,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:10,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:10,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:10,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:10,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:10,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:10,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:10,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:10,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:10,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 00:10:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:10,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:10,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:10,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:10,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:10,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:10,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:10,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:10,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:10,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:10,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:10,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:10,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 00:10:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:10,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:10,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:10,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:10,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:10,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:10,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:10,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:10,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:10,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:10,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:10,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:10,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 00:10:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:10,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:10,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:10,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:10,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:10,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:10,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:10,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:10,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:10,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:10,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:10,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:10,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 00:10:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:10,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:10,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:10,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:10,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:10,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:10,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:10,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:10,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:10,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:10,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:10,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:10,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 00:10:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:10,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:10,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:10,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:10,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:10,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:10,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:10,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:10,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:10,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:10,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:10,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:10,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 00:10:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:10,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:10,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:10,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:10,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:10,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:10,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:10,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:10,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:10,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:10,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:10,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:10,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 00:10:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:10,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:10,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:10,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:10,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:10,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:10,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:10,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:10,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:10,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:10,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:10,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:10,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 00:10:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:10,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:10,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:10,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:10,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:10,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:10,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:10,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:10,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:10,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:10,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:10,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:10,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 00:10:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:10,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:10,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:10,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:10,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:10,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:10,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:10,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:10,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:10,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:10,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:10,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:10,798 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 264 proven. 231 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 00:10:10,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1852919721] [2020-10-14 00:10:10,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:10:10,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 00:10:10,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943892441] [2020-10-14 00:10:10,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 00:10:10,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:10:10,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 00:10:10,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=163, Unknown=0, NotChecked=0, Total=272 [2020-10-14 00:10:10,800 INFO L87 Difference]: Start difference. First operand 149 states and 151 transitions. Second operand 17 states. [2020-10-14 00:10:11,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:10:11,772 INFO L93 Difference]: Finished difference Result 268 states and 274 transitions. [2020-10-14 00:10:11,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-14 00:10:11,773 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 146 [2020-10-14 00:10:11,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:10:11,775 INFO L225 Difference]: With dead ends: 268 [2020-10-14 00:10:11,775 INFO L226 Difference]: Without dead ends: 161 [2020-10-14 00:10:11,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=609, Unknown=0, NotChecked=0, Total=930 [2020-10-14 00:10:11,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-10-14 00:10:11,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 153. [2020-10-14 00:10:11,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-10-14 00:10:11,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 155 transitions. [2020-10-14 00:10:11,790 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 155 transitions. Word has length 146 [2020-10-14 00:10:11,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:10:11,790 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 155 transitions. [2020-10-14 00:10:11,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 00:10:11,790 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 155 transitions. [2020-10-14 00:10:11,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-14 00:10:11,791 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:10:11,792 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:10:11,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 00:10:11,792 INFO L427 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:10:11,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:10:11,792 INFO L82 PathProgramCache]: Analyzing trace with hash -6519548, now seen corresponding path program 21 times [2020-10-14 00:10:11,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:10:11,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1729704559] [2020-10-14 00:10:11,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:10:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:11,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:13,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:14,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:14,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 00:10:14,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:10:14,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2485 [2020-10-14 00:10:14,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:14,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:14,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-14 00:10:14,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 00:10:14,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-14 00:10:14,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:15,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:10:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:15,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:15,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:15,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:10:15,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:15,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:15,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:15,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:15,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:10:15,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:15,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:10:15,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:15,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 00:10:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:15,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:15,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:15,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:15,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:15,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:15,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:15,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:15,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:15,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:15,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:15,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:15,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 00:10:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:15,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:15,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:15,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:15,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:15,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:15,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:15,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:15,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:15,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:15,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:15,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:15,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 00:10:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:15,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:15,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:15,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:15,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:15,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:15,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:15,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:15,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:15,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:15,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:15,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:15,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 00:10:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:15,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:15,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:15,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:15,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:15,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:15,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:15,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:15,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:15,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:15,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:15,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:15,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 00:10:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:15,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:15,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:15,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:15,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:15,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:15,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:15,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:15,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:15,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:15,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:15,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:15,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 00:10:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:15,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:15,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:15,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:15,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:15,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:15,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:15,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:15,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:15,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 00:10:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:15,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:15,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:15,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:15,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:15,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:15,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:15,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:15,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:15,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:15,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:15,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:15,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-14 00:10:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:15,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:15,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:15,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:15,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:15,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:15,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:15,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:15,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:15,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:15,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:15,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:15,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-14 00:10:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:15,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:15,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:15,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:15,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:15,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:15,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:15,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:15,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:15,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:15,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:15,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:15,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 00:10:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:15,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:15,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:15,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:15,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:15,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:15,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:15,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:15,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:15,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-14 00:10:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:15,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:15,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:15,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:15,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:15,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:15,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:15,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:15,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:15,704 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 56 proven. 484 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-14 00:10:15,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1729704559] [2020-10-14 00:10:15,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:10:15,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 00:10:15,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102921657] [2020-10-14 00:10:15,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 00:10:15,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:10:15,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 00:10:15,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-10-14 00:10:15,706 INFO L87 Difference]: Start difference. First operand 153 states and 155 transitions. Second operand 23 states. [2020-10-14 00:10:19,210 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2020-10-14 00:10:19,392 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2020-10-14 00:10:19,622 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2020-10-14 00:10:19,876 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2020-10-14 00:10:20,066 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2020-10-14 00:10:22,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:10:22,051 INFO L93 Difference]: Finished difference Result 168 states and 171 transitions. [2020-10-14 00:10:22,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-10-14 00:10:22,052 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 150 [2020-10-14 00:10:22,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:10:22,054 INFO L225 Difference]: With dead ends: 168 [2020-10-14 00:10:22,054 INFO L226 Difference]: Without dead ends: 166 [2020-10-14 00:10:22,057 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 37 SyntacticMatches, 30 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 951 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1018, Invalid=4682, Unknown=0, NotChecked=0, Total=5700 [2020-10-14 00:10:22,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-14 00:10:22,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 161. [2020-10-14 00:10:22,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-10-14 00:10:22,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 163 transitions. [2020-10-14 00:10:22,072 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 163 transitions. Word has length 150 [2020-10-14 00:10:22,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:10:22,073 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 163 transitions. [2020-10-14 00:10:22,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 00:10:22,073 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 163 transitions. [2020-10-14 00:10:22,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-14 00:10:22,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:10:22,074 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:10:22,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 00:10:22,075 INFO L427 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:10:22,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:10:22,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1881160261, now seen corresponding path program 22 times [2020-10-14 00:10:22,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:10:22,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [370660910] [2020-10-14 00:10:22,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:10:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:22,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:22,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:25,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:25,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-14 00:10:25,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:10:25,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3154 [2020-10-14 00:10:25,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:25,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:25,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 00:10:25,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:10:25,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-14 00:10:25,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:25,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:10:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:25,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:25,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:25,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:10:25,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:25,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:25,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:25,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:25,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:10:25,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:25,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:10:25,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:25,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 00:10:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:25,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:25,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:25,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:25,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:25,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:25,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:25,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:25,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:25,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:25,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:25,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:25,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 00:10:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:25,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:25,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:25,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:25,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:25,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:25,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:25,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:25,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:25,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:25,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:25,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:25,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 00:10:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:25,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:25,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:25,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:25,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:25,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:25,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:25,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:25,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:25,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:25,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:25,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:10:25,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 00:10:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:25,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:25,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:25,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:25,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:25,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:25,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:25,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:25,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:25,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:25,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:25,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:25,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 00:10:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:25,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:25,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:25,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:25,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:25,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:25,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:25,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:25,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:25,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:25,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:25,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:25,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 00:10:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:25,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:25,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:25,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:25,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:25,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:25,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:25,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:25,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:25,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:25,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:25,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:25,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 00:10:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:25,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:25,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:25,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:25,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:25,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:25,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:25,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:25,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:25,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:25,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:25,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:10:25,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-14 00:10:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:25,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:25,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:25,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:25,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:25,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:25,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:25,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:25,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:25,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:25,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:25,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:25,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-14 00:10:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:25,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:25,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:25,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:25,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:25,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:10:25,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:25,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:25,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:25,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:25,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:25,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:25,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 00:10:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:25,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:25,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:25,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:25,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:25,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:25,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:25,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:25,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:25,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:25,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:25,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:10:25,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-14 00:10:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:25,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:25,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:25,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:25,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:25,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:25,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:25,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:25,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:25,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:25,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:25,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:25,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 00:10:25,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:25,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:25,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:25,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:25,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:25,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:25,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:25,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:25,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:25,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:25,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:25,580 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 312 proven. 276 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-14 00:10:25,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [370660910] [2020-10-14 00:10:25,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:10:25,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 00:10:25,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912934039] [2020-10-14 00:10:25,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 00:10:25,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:10:25,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 00:10:25,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=163, Unknown=0, NotChecked=0, Total=272 [2020-10-14 00:10:25,584 INFO L87 Difference]: Start difference. First operand 161 states and 163 transitions. Second operand 17 states. [2020-10-14 00:10:26,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:10:26,411 INFO L93 Difference]: Finished difference Result 282 states and 287 transitions. [2020-10-14 00:10:26,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-14 00:10:26,412 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 158 [2020-10-14 00:10:26,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:10:26,415 INFO L225 Difference]: With dead ends: 282 [2020-10-14 00:10:26,415 INFO L226 Difference]: Without dead ends: 167 [2020-10-14 00:10:26,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=321, Invalid=609, Unknown=0, NotChecked=0, Total=930 [2020-10-14 00:10:26,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-10-14 00:10:26,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 165. [2020-10-14 00:10:26,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-10-14 00:10:26,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 167 transitions. [2020-10-14 00:10:26,432 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 167 transitions. Word has length 158 [2020-10-14 00:10:26,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:10:26,432 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 167 transitions. [2020-10-14 00:10:26,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 00:10:26,432 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 167 transitions. [2020-10-14 00:10:26,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-14 00:10:26,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:10:26,434 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:10:26,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 00:10:26,434 INFO L427 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:10:26,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:10:26,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1314785098, now seen corresponding path program 23 times [2020-10-14 00:10:26,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:10:26,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067812890] [2020-10-14 00:10:26,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:10:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:26,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:27,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:31,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:31,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-14 00:10:31,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:10:31,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4886 [2020-10-14 00:10:31,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:31,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:31,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-14 00:10:31,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 00:10:31,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-14 00:10:31,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:32,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:10:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:32,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:32,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:32,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:10:32,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:32,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:32,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:32,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:32,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:10:32,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:32,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:10:32,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:32,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 00:10:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:32,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:32,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:32,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:32,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:32,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:32,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:32,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:32,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:32,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:32,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:32,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:32,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 00:10:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:32,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:32,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:32,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:32,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:32,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:32,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:32,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:32,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:32,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:32,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:32,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:32,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 00:10:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:32,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:32,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:32,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:32,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:32,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:32,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:32,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:32,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:32,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:32,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:32,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:32,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 00:10:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:32,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:32,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:32,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:32,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:32,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:32,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:32,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:32,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:32,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:32,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:32,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:32,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 00:10:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:32,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:32,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:32,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:32,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:32,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:32,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:32,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:32,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:32,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:32,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:32,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:32,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 00:10:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:32,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:32,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:32,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:32,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:32,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:32,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:32,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:32,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:32,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:32,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:32,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:32,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 00:10:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:32,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:32,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:32,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:32,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:32,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:32,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:32,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:32,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:32,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:32,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:32,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:32,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 00:10:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:32,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:32,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:32,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:32,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:32,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:32,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:32,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:32,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:32,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:32,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:32,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:32,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 00:10:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:32,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:32,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:32,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:32,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:32,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:32,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:32,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:32,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:32,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:32,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:32,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:32,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 00:10:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:32,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:32,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:32,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:32,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:32,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:32,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:32,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:32,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:32,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:32,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:32,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:32,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 00:10:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:32,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:32,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:32,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:32,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:32,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:32,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:32,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:32,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:32,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:32,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:32,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:32,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-14 00:10:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:32,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:32,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:32,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:32,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:32,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:32,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:32,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:32,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:32,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:32,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:32,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:32,980 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 61 proven. 576 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-14 00:10:32,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067812890] [2020-10-14 00:10:32,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:10:32,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-14 00:10:32,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246291156] [2020-10-14 00:10:32,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-14 00:10:32,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:10:32,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-14 00:10:32,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=504, Unknown=0, NotChecked=0, Total=552 [2020-10-14 00:10:32,982 INFO L87 Difference]: Start difference. First operand 165 states and 167 transitions. Second operand 24 states. [2020-10-14 00:10:36,624 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-10-14 00:10:36,952 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2020-10-14 00:10:37,170 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2020-10-14 00:10:37,439 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2020-10-14 00:10:37,656 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2020-10-14 00:10:37,918 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2020-10-14 00:10:38,209 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-14 00:10:40,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:10:40,668 INFO L93 Difference]: Finished difference Result 180 states and 183 transitions. [2020-10-14 00:10:40,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-10-14 00:10:40,669 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 162 [2020-10-14 00:10:40,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:10:40,671 INFO L225 Difference]: With dead ends: 180 [2020-10-14 00:10:40,671 INFO L226 Difference]: Without dead ends: 178 [2020-10-14 00:10:40,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 39 SyntacticMatches, 32 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1113 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=1077, Invalid=5243, Unknown=0, NotChecked=0, Total=6320 [2020-10-14 00:10:40,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-14 00:10:40,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 173. [2020-10-14 00:10:40,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-10-14 00:10:40,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 175 transitions. [2020-10-14 00:10:40,689 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 175 transitions. Word has length 162 [2020-10-14 00:10:40,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:10:40,690 INFO L479 AbstractCegarLoop]: Abstraction has 173 states and 175 transitions. [2020-10-14 00:10:40,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-14 00:10:40,690 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 175 transitions. [2020-10-14 00:10:40,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-14 00:10:40,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:10:40,691 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:10:40,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 00:10:40,692 INFO L427 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:10:40,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:10:40,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1113024365, now seen corresponding path program 24 times [2020-10-14 00:10:40,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:10:40,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [808948584] [2020-10-14 00:10:40,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:10:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:40,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:41,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:44,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:44,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-10-14 00:10:44,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:10:44,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4108 [2020-10-14 00:10:44,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:44,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:44,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 00:10:44,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:10:44,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 186 [2020-10-14 00:10:44,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:45,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:10:45,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:45,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:45,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:45,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:10:45,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:45,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:45,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:45,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:45,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:10:45,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:45,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:10:45,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:45,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 00:10:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:45,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:45,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:45,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:45,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:45,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:45,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:45,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:45,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:45,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:45,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:45,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:45,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 00:10:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:45,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:45,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:45,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:45,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:45,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:45,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:45,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:45,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:45,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:45,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:45,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:45,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 00:10:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:45,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:45,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:45,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:45,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:45,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:45,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:45,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:45,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:45,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:45,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:45,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:45,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 00:10:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:45,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:45,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:45,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:45,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:45,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:45,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:45,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:45,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:45,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:45,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:45,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:45,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 00:10:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:45,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:45,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:45,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:45,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:45,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:45,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:45,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:45,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:45,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:45,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:45,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:45,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 00:10:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:45,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:45,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:45,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:45,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:45,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:45,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:45,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:45,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:45,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:45,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:45,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:45,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 00:10:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:45,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:45,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:45,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:45,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:45,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:45,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:45,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:45,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:45,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 00:10:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:45,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:45,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:45,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:45,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:45,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:45,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:45,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:45,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:45,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:45,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:45,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:45,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 00:10:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:45,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:45,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:45,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:45,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:45,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:45,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:45,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:45,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:45,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:45,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:45,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:45,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 00:10:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:45,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:45,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:45,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:45,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:45,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:45,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:45,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:45,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:45,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:45,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:45,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:45,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 00:10:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:45,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:45,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:45,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:45,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:45,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:45,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:45,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:45,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:45,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:45,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:45,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:45,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-14 00:10:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:45,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:45,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:45,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:45,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:45,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:45,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:45,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:45,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:45,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:45,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:45,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:45,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-14 00:10:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:45,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:45,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:45,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:45,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:45,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:45,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:45,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:45,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:45,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:45,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:45,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:45,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1001 backedges. 364 proven. 325 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-14 00:10:45,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [808948584] [2020-10-14 00:10:45,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:10:45,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 00:10:45,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843941] [2020-10-14 00:10:45,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 00:10:45,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:10:45,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 00:10:45,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=202, Unknown=0, NotChecked=0, Total=342 [2020-10-14 00:10:45,192 INFO L87 Difference]: Start difference. First operand 173 states and 175 transitions. Second operand 19 states. [2020-10-14 00:10:46,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:10:46,508 INFO L93 Difference]: Finished difference Result 308 states and 314 transitions. [2020-10-14 00:10:46,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-14 00:10:46,509 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 170 [2020-10-14 00:10:46,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:10:46,512 INFO L225 Difference]: With dead ends: 308 [2020-10-14 00:10:46,512 INFO L226 Difference]: Without dead ends: 185 [2020-10-14 00:10:46,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=414, Invalid=776, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 00:10:46,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-10-14 00:10:46,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 177. [2020-10-14 00:10:46,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-10-14 00:10:46,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 179 transitions. [2020-10-14 00:10:46,528 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 179 transitions. Word has length 170 [2020-10-14 00:10:46,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:10:46,529 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 179 transitions. [2020-10-14 00:10:46,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 00:10:46,529 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 179 transitions. [2020-10-14 00:10:46,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-14 00:10:46,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:10:46,530 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:10:46,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 00:10:46,531 INFO L427 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:10:46,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:10:46,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1121319400, now seen corresponding path program 25 times [2020-10-14 00:10:46,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:10:46,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1574964027] [2020-10-14 00:10:46,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:10:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:46,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:48,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:51,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:51,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-10-14 00:10:51,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:10:51,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 00:10:51,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:51,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:51,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-14 00:10:51,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 00:10:51,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 192 [2020-10-14 00:10:51,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:10:53,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:10:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:53,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:53,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:53,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:10:53,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:53,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:53,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:53,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:53,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:10:53,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:53,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:10:53,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:53,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 00:10:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:53,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:53,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:53,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:53,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:53,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:53,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:53,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:53,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:53,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:53,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:53,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:53,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 00:10:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:53,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:53,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:53,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:53,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:53,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:53,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:53,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:53,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:53,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:53,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:53,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:53,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 00:10:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:53,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:53,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:53,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:53,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:53,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:53,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:53,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:53,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:53,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:53,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:53,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:53,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 00:10:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:53,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:53,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:53,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:53,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:53,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:53,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:53,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:53,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:53,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:53,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:53,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:53,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 00:10:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:53,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:53,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:53,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:53,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:53,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:53,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:53,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:53,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:53,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:53,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:53,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 00:10:53,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 00:10:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:53,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:53,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:53,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:53,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:53,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:53,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:53,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:53,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:53,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:53,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:53,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:53,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-14 00:10:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:53,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:53,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:53,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:53,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:53,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:53,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:53,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:53,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:53,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:53,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:53,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:53,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-14 00:10:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:53,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:53,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:53,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:53,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:53,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:10:53,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:53,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:53,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:53,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:53,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:53,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:53,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 00:10:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:53,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:53,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:53,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:53,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:53,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:53,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:53,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:53,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:53,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:53,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:53,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:53,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-14 00:10:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:53,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:53,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:53,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:53,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:53,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:53,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:53,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:53,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:53,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:53,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:53,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:53,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 00:10:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:53,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:53,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:53,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:53,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:53,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:53,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:53,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:53,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:53,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:53,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:53,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:53,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-14 00:10:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:53,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:53,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:53,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:53,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:53,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:53,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:53,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:53,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:53,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:53,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:53,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:53,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-14 00:10:53,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:10:53,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:10:53,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:10:53,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:10:53,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:10:53,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:10:53,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:10:53,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:10:53,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:10:53,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:10:53,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:10:53,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:10:53,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 70 proven. 672 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-14 00:10:53,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1574964027] [2020-10-14 00:10:53,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:10:53,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 00:10:53,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249152837] [2020-10-14 00:10:53,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 00:10:53,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:10:53,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 00:10:53,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=639, Unknown=0, NotChecked=0, Total=702 [2020-10-14 00:10:53,673 INFO L87 Difference]: Start difference. First operand 177 states and 179 transitions. Second operand 27 states. [2020-10-14 00:10:57,839 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-14 00:10:58,078 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-14 00:10:58,304 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-14 00:10:58,801 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-14 00:11:01,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:11:01,806 INFO L93 Difference]: Finished difference Result 192 states and 195 transitions. [2020-10-14 00:11:01,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-10-14 00:11:01,808 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 174 [2020-10-14 00:11:01,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:11:01,810 INFO L225 Difference]: With dead ends: 192 [2020-10-14 00:11:01,810 INFO L226 Difference]: Without dead ends: 190 [2020-10-14 00:11:01,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 42 SyntacticMatches, 33 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1378 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=1212, Invalid=5928, Unknown=0, NotChecked=0, Total=7140 [2020-10-14 00:11:01,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-10-14 00:11:01,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 185. [2020-10-14 00:11:01,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-14 00:11:01,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 187 transitions. [2020-10-14 00:11:01,828 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 187 transitions. Word has length 174 [2020-10-14 00:11:01,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:11:01,829 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 187 transitions. [2020-10-14 00:11:01,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 00:11:01,829 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 187 transitions. [2020-10-14 00:11:01,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-14 00:11:01,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:11:01,831 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:11:01,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 00:11:01,831 INFO L427 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:11:01,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:11:01,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1722280289, now seen corresponding path program 26 times [2020-10-14 00:11:01,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:11:01,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [522576487] [2020-10-14 00:11:01,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:11:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:01,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:02,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:06,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:06,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-14 00:11:06,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:11:06,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 00:11:06,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:06,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:06,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 00:11:06,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:11:06,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 200 [2020-10-14 00:11:06,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:07,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:11:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:07,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:07,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:07,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:11:07,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:07,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:07,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:07,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:07,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:11:07,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:07,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:11:07,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:07,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 00:11:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:07,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:07,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:07,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:07,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:07,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:07,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:07,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:07,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:07,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:07,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:07,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:07,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 00:11:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:07,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:07,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:07,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:07,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:07,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:07,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:07,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:07,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:07,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:07,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:07,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:07,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 00:11:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:07,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:07,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:07,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:07,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:07,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:07,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:07,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:07,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:07,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:07,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:07,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:07,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 00:11:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:07,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:07,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:07,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:07,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:07,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:07,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:07,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:07,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:07,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:07,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:07,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:07,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 00:11:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:07,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:07,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:07,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:07,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:07,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:07,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:07,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:07,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:07,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:07,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:07,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:07,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 00:11:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:07,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:07,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:07,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:07,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:07,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:07,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:07,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:07,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:07,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:07,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:07,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:11:07,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-14 00:11:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:07,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:07,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:07,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:07,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:07,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:07,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:07,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:07,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:07,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:07,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:07,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:07,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-14 00:11:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:07,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:07,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:07,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:07,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:07,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:07,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:07,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:07,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:07,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:07,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:07,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:07,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 00:11:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:07,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:07,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:07,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:07,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:07,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:07,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:07,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:07,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:07,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:07,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:07,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:07,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-14 00:11:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:07,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:07,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:07,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:07,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:07,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:07,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:07,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:07,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:07,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:07,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:07,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:07,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 00:11:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:07,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:07,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:07,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:07,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:07,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:07,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:07,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:07,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:07,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:07,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:07,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:07,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-14 00:11:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:07,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:07,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:07,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:07,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:07,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:07,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:07,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:07,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:07,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:07,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:07,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:07,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-14 00:11:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:07,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:07,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:07,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:07,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:07,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:07,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:07,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:07,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:07,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:07,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:07,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:07,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-14 00:11:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:07,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:07,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:07,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:07,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:07,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:07,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:07,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:07,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:07,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:07,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:07,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:07,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1162 backedges. 420 proven. 378 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-10-14 00:11:07,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [522576487] [2020-10-14 00:11:07,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:11:07,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 00:11:07,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600488815] [2020-10-14 00:11:07,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 00:11:07,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:11:07,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 00:11:07,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=202, Unknown=0, NotChecked=0, Total=342 [2020-10-14 00:11:07,269 INFO L87 Difference]: Start difference. First operand 185 states and 187 transitions. Second operand 19 states. [2020-10-14 00:11:08,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:11:08,467 INFO L93 Difference]: Finished difference Result 322 states and 327 transitions. [2020-10-14 00:11:08,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-14 00:11:08,469 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 182 [2020-10-14 00:11:08,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:11:08,471 INFO L225 Difference]: With dead ends: 322 [2020-10-14 00:11:08,472 INFO L226 Difference]: Without dead ends: 191 [2020-10-14 00:11:08,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=414, Invalid=776, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 00:11:08,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-10-14 00:11:08,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 189. [2020-10-14 00:11:08,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-14 00:11:08,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 191 transitions. [2020-10-14 00:11:08,491 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 191 transitions. Word has length 182 [2020-10-14 00:11:08,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:11:08,492 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 191 transitions. [2020-10-14 00:11:08,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 00:11:08,492 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 191 transitions. [2020-10-14 00:11:08,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-14 00:11:08,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:11:08,494 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:11:08,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-14 00:11:08,494 INFO L427 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:11:08,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:11:08,494 INFO L82 PathProgramCache]: Analyzing trace with hash 528468122, now seen corresponding path program 27 times [2020-10-14 00:11:08,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:11:08,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963580166] [2020-10-14 00:11:08,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:11:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:08,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:11,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:13,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:13,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-14 00:11:13,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:11:13,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 00:11:13,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:13,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:13,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-14 00:11:13,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 00:11:13,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 206 [2020-10-14 00:11:13,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:15,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:11:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:15,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:15,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:15,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:11:15,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:15,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:15,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:15,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:15,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:11:15,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:15,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:11:15,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:15,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 00:11:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:15,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:15,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:15,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:15,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:15,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:15,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:15,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:15,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:15,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:15,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:15,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:15,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 00:11:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:15,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:15,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:15,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:15,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:15,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:11:15,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:15,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:15,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:15,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 00:11:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:15,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:15,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:15,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:15,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:15,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:15,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:15,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:15,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:15,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:15,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:15,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:15,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 00:11:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:15,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:15,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:15,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:15,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:15,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:15,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:15,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:15,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:15,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:15,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:15,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:15,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 00:11:15,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:15,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:15,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:15,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:15,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:15,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:11:15,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:15,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:15,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:15,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:15,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:15,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:15,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 00:11:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:15,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:15,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:15,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:15,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:15,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:15,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:15,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:15,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:15,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:15,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:15,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:15,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 00:11:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:15,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:15,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:15,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:15,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:15,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:15,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:15,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:15,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:15,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:15,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:15,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:15,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 00:11:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:15,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:15,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:15,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:15,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:15,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:15,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:15,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:15,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:15,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:15,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:15,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:15,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 00:11:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:15,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:15,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:15,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:15,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:15,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:15,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:15,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:15,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:15,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 00:11:15,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:15,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:15,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:15,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:15,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:15,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:11:15,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:15,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:15,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:15,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:15,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:15,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:15,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-14 00:11:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:15,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:15,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:15,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:15,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:15,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:15,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:15,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:15,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:15,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:15,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:15,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:15,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-14 00:11:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:15,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:15,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:15,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:15,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:15,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:11:15,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:15,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:15,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:15,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:15,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:15,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:15,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-14 00:11:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:15,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:15,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:15,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:15,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:15,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:15,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:15,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:15,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:15,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:15,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:15,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:15,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-14 00:11:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:15,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:15,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:15,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:15,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:15,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:11:15,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:15,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:15,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:15,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:15,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:15,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:16,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 71 proven. 784 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-10-14 00:11:16,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963580166] [2020-10-14 00:11:16,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:11:16,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-14 00:11:16,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981446749] [2020-10-14 00:11:16,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-14 00:11:16,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:11:16,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-14 00:11:16,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=598, Unknown=0, NotChecked=0, Total=650 [2020-10-14 00:11:16,067 INFO L87 Difference]: Start difference. First operand 189 states and 191 transitions. Second operand 26 states. [2020-10-14 00:11:21,468 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-14 00:11:22,144 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-14 00:11:22,447 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 91 [2020-10-14 00:11:22,735 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 95 [2020-10-14 00:11:23,074 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2020-10-14 00:11:23,369 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 98 [2020-10-14 00:11:23,708 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 97 [2020-10-14 00:11:24,081 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 101 [2020-10-14 00:11:28,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:11:28,443 INFO L93 Difference]: Finished difference Result 204 states and 207 transitions. [2020-10-14 00:11:28,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-10-14 00:11:28,445 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 186 [2020-10-14 00:11:28,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:11:28,446 INFO L225 Difference]: With dead ends: 204 [2020-10-14 00:11:28,446 INFO L226 Difference]: Without dead ends: 202 [2020-10-14 00:11:28,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 45 SyntacticMatches, 38 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1493 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=1375, Invalid=6815, Unknown=0, NotChecked=0, Total=8190 [2020-10-14 00:11:28,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-14 00:11:28,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 197. [2020-10-14 00:11:28,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-10-14 00:11:28,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 199 transitions. [2020-10-14 00:11:28,466 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 199 transitions. Word has length 186 [2020-10-14 00:11:28,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:11:28,467 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 199 transitions. [2020-10-14 00:11:28,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-14 00:11:28,467 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 199 transitions. [2020-10-14 00:11:28,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-14 00:11:28,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:11:28,468 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:11:28,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-14 00:11:28,469 INFO L427 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:11:28,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:11:28,469 INFO L82 PathProgramCache]: Analyzing trace with hash -437709999, now seen corresponding path program 28 times [2020-10-14 00:11:28,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:11:28,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [961943220] [2020-10-14 00:11:28,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:11:28,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:28,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:29,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:33,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:33,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-14 00:11:33,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:11:33,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 00:11:33,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:33,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:33,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-14 00:11:33,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:11:33,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 214 [2020-10-14 00:11:33,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:33,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:11:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:33,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:33,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:33,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:11:33,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:33,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:33,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:33,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:33,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:11:33,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:33,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:11:33,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:33,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 00:11:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:33,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:33,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:33,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:33,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:33,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:33,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:33,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:33,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:33,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:33,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:33,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:33,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 00:11:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:33,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:33,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:33,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:33,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:33,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:33,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:33,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:33,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:33,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:33,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:33,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:33,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 00:11:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:33,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:33,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:33,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:33,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:33,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:33,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:33,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:33,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:33,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:33,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:33,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:33,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 00:11:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:33,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:33,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:33,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:33,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:33,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:33,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:33,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:33,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:33,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:33,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:33,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:33,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 00:11:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:33,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:33,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:33,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:33,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:33,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:33,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:33,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:33,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:33,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:33,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:33,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:33,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 00:11:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:33,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:33,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:33,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:33,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:33,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:33,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:33,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:33,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:33,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:33,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:33,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:33,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 00:11:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:33,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:33,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:33,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:33,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:33,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:33,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:33,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:33,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:33,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:33,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:33,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:33,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 00:11:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:33,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:33,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:33,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:33,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:33,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:33,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:33,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:33,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:33,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:33,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:33,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:33,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 00:11:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:33,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:33,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:33,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:33,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:33,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:33,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:33,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:33,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:33,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:33,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:33,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:33,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 00:11:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:33,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:33,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:33,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:33,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:33,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:33,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:33,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:33,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:33,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:33,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:33,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:34,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-14 00:11:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:34,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:34,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:34,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:34,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:34,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:34,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:34,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:34,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:34,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:34,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:34,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:34,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-14 00:11:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:34,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:34,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:34,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:34,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:34,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:34,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:34,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:34,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:34,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:34,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:34,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:34,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-14 00:11:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:34,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:34,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:34,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:34,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:34,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:34,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:34,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:34,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:34,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:34,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:34,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:34,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-14 00:11:34,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:34,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:34,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:34,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:34,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:34,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:34,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:34,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:34,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:34,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:34,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:34,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:34,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-14 00:11:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:34,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:34,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:34,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:34,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:34,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:34,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:34,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:34,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:34,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:34,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:34,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:34,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 480 proven. 435 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-10-14 00:11:34,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [961943220] [2020-10-14 00:11:34,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:11:34,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 00:11:34,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112213532] [2020-10-14 00:11:34,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 00:11:34,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:11:34,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 00:11:34,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=245, Unknown=0, NotChecked=0, Total=420 [2020-10-14 00:11:34,065 INFO L87 Difference]: Start difference. First operand 197 states and 199 transitions. Second operand 21 states. [2020-10-14 00:11:35,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:11:35,817 INFO L93 Difference]: Finished difference Result 348 states and 354 transitions. [2020-10-14 00:11:35,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-14 00:11:35,819 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 194 [2020-10-14 00:11:35,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:11:35,821 INFO L225 Difference]: With dead ends: 348 [2020-10-14 00:11:35,821 INFO L226 Difference]: Without dead ends: 209 [2020-10-14 00:11:35,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=519, Invalid=963, Unknown=0, NotChecked=0, Total=1482 [2020-10-14 00:11:35,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-10-14 00:11:35,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 201. [2020-10-14 00:11:35,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-10-14 00:11:35,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 203 transitions. [2020-10-14 00:11:35,841 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 203 transitions. Word has length 194 [2020-10-14 00:11:35,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:11:35,842 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 203 transitions. [2020-10-14 00:11:35,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 00:11:35,842 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 203 transitions. [2020-10-14 00:11:35,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-14 00:11:35,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:11:35,844 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:11:35,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-14 00:11:35,844 INFO L427 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:11:35,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:11:35,845 INFO L82 PathProgramCache]: Analyzing trace with hash -611932980, now seen corresponding path program 29 times [2020-10-14 00:11:35,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:11:35,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829735047] [2020-10-14 00:11:35,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:11:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:35,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:37,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:40,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:40,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-14 00:11:40,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:11:40,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 00:11:40,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:40,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:40,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-14 00:11:40,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 00:11:40,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 00:11:40,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:43,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:11:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:43,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:43,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:43,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:11:43,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:43,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:43,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:43,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:43,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:11:43,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:43,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:11:43,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:43,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 00:11:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:43,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:43,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:43,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:43,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:43,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:43,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:43,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:43,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:43,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:43,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:43,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:43,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 00:11:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:43,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:43,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:43,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:43,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:43,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:43,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:43,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:43,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:43,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:43,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:43,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:43,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 00:11:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:43,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:43,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:43,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:43,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:43,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:43,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:43,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:43,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:43,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:43,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:43,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:43,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 00:11:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:43,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:43,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:43,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:43,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:43,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:43,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:43,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:43,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:43,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:43,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:43,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:43,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 00:11:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:43,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:43,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:43,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:43,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:43,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:43,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:43,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:43,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:43,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:43,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:43,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:43,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-14 00:11:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:43,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:43,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:43,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:43,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:43,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:43,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:43,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:43,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:43,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:43,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:43,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:43,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-14 00:11:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:43,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:43,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:43,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:43,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:43,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:43,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:43,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:43,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:43,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:43,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:43,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:43,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 00:11:43,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:43,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:43,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:43,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:43,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:43,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:43,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:43,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:43,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:43,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:43,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:43,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:43,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-14 00:11:43,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:43,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:43,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:43,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:43,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:43,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:43,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:43,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:43,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:43,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:43,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:43,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:43,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 00:11:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:43,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:43,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:43,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:43,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:43,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:43,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:43,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:43,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:43,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:43,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:43,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:43,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-14 00:11:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:43,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:43,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:43,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:43,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:43,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:43,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:43,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:43,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:43,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:43,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:43,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:43,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-14 00:11:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:43,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:43,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:43,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:43,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:43,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:43,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:43,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:43,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:43,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:43,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:43,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:43,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-14 00:11:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:43,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:43,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:43,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:43,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:43,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:43,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:43,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:43,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:43,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:43,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:43,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:43,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-14 00:11:43,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:43,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:43,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:43,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:43,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:43,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:11:43,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:43,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:43,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:43,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:43,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:43,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:43,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-14 00:11:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:43,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:43,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:11:43,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:11:43,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:11:43,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:11:43,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:11:43,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:11:43,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:11:43,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:11:43,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:11:43,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:11:43,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 76 proven. 900 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-10-14 00:11:43,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829735047] [2020-10-14 00:11:43,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:11:43,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 00:11:43,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954809635] [2020-10-14 00:11:43,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 00:11:43,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:11:43,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 00:11:43,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2020-10-14 00:11:43,966 INFO L87 Difference]: Start difference. First operand 201 states and 203 transitions. Second operand 27 states. [2020-10-14 00:11:50,373 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-14 00:11:51,398 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-14 00:11:51,964 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-14 00:11:52,324 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-14 00:11:52,675 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-14 00:11:52,893 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-14 00:11:53,265 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 104 [2020-10-14 00:11:57,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:11:57,576 INFO L93 Difference]: Finished difference Result 216 states and 219 transitions. [2020-10-14 00:11:57,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2020-10-14 00:11:57,578 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 198 [2020-10-14 00:11:57,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:11:57,580 INFO L225 Difference]: With dead ends: 216 [2020-10-14 00:11:57,580 INFO L226 Difference]: Without dead ends: 214 [2020-10-14 00:11:57,582 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 47 SyntacticMatches, 41 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1705 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=1589, Invalid=7531, Unknown=0, NotChecked=0, Total=9120 [2020-10-14 00:11:57,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-14 00:11:57,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 209. [2020-10-14 00:11:57,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-14 00:11:57,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 211 transitions. [2020-10-14 00:11:57,608 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 211 transitions. Word has length 198 [2020-10-14 00:11:57,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:11:57,609 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 211 transitions. [2020-10-14 00:11:57,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 00:11:57,609 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 211 transitions. [2020-10-14 00:11:57,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-14 00:11:57,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:11:57,612 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:11:57,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-14 00:11:57,612 INFO L427 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:11:57,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:11:57,613 INFO L82 PathProgramCache]: Analyzing trace with hash 11640195, now seen corresponding path program 30 times [2020-10-14 00:11:57,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:11:57,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [653410248] [2020-10-14 00:11:57,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:11:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:11:57,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:11:58,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:02,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:02,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-10-14 00:12:02,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:12:02,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 00:12:02,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:02,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:02,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-14 00:12:02,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:12:02,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 228 [2020-10-14 00:12:02,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:03,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:12:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:03,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:03,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:03,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:12:03,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:03,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:03,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:03,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:03,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:12:03,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:03,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:12:03,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:03,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 00:12:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:03,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:03,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:03,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:03,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:03,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:03,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:03,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:03,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:03,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:03,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:03,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:03,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 00:12:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:03,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:03,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:03,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:03,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:03,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:03,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:03,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:03,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:03,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:03,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:03,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:03,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 00:12:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:03,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:03,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:03,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:03,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:03,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:03,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:03,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:03,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:03,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:03,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:03,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:03,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 00:12:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:03,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:03,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:03,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:03,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:03,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:03,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:03,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:03,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:03,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 00:12:03,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:03,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:03,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:03,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:03,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:03,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:03,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:03,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:03,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:03,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:03,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:03,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:03,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-14 00:12:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:03,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:03,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:03,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:03,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:03,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:03,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:03,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:03,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:03,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:03,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:03,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:03,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-14 00:12:03,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:03,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:03,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:03,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:03,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:03,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:03,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:03,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:03,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:03,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 00:12:03,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:03,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:03,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:03,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:03,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:03,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:03,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:03,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:03,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:03,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:03,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:03,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:03,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-14 00:12:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:03,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:03,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:03,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:03,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:03,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:03,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:03,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:03,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:03,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:03,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:03,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:03,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 00:12:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:03,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:03,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:03,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:03,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:03,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:03,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:03,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:03,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:03,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:03,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:03,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:03,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-14 00:12:03,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:03,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:03,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:03,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:03,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:03,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:03,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:03,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:03,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:03,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-14 00:12:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:03,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:03,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:03,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:03,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:03,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:03,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:03,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:03,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:03,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:03,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:03,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:03,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-14 00:12:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:03,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:03,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:03,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:03,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:03,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:03,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:03,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:03,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:03,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:03,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:03,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:03,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-14 00:12:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:03,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:03,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:03,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:03,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:03,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:03,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:03,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:03,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:03,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:03,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:03,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:03,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-14 00:12:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:03,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:03,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:03,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:03,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:03,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:03,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:03,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:03,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:03,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:03,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:03,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:03,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-14 00:12:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:03,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:03,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:03,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:03,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:03,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:03,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:03,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:03,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:03,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:03,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:03,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:03,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1520 backedges. 544 proven. 496 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-10-14 00:12:03,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [653410248] [2020-10-14 00:12:03,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:12:03,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-14 00:12:03,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564044407] [2020-10-14 00:12:03,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 00:12:03,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:12:03,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 00:12:03,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=268, Unknown=0, NotChecked=0, Total=462 [2020-10-14 00:12:03,261 INFO L87 Difference]: Start difference. First operand 209 states and 211 transitions. Second operand 22 states. [2020-10-14 00:12:05,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:12:05,230 INFO L93 Difference]: Finished difference Result 368 states and 374 transitions. [2020-10-14 00:12:05,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-14 00:12:05,232 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 206 [2020-10-14 00:12:05,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:12:05,234 INFO L225 Difference]: With dead ends: 368 [2020-10-14 00:12:05,235 INFO L226 Difference]: Without dead ends: 221 [2020-10-14 00:12:05,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=576, Invalid=1064, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 00:12:05,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-10-14 00:12:05,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 213. [2020-10-14 00:12:05,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-10-14 00:12:05,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 215 transitions. [2020-10-14 00:12:05,255 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 215 transitions. Word has length 206 [2020-10-14 00:12:05,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:12:05,255 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 215 transitions. [2020-10-14 00:12:05,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 00:12:05,255 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 215 transitions. [2020-10-14 00:12:05,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-14 00:12:05,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:12:05,257 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:12:05,257 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-14 00:12:05,257 INFO L427 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:12:05,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:12:05,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1114754686, now seen corresponding path program 31 times [2020-10-14 00:12:05,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:12:05,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600219301] [2020-10-14 00:12:05,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:12:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:05,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:07,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:10,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:10,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 00:12:10,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:12:10,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 00:12:10,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:10,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:10,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 70 [2020-10-14 00:12:10,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 00:12:10,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 00:12:10,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:13,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:12:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:13,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:13,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:13,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:12:13,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:13,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:13,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:13,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:13,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:12:13,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:13,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:12:13,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:13,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 00:12:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:13,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:13,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:13,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:13,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:13,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:13,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:13,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:13,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:13,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:13,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:13,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:13,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 00:12:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:13,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:13,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:13,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:13,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:13,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:13,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:13,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:13,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:13,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:13,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:13,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:13,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 00:12:13,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:13,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:13,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:13,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:13,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:13,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:13,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:13,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:13,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:13,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:13,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:13,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:13,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 00:12:13,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:13,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:13,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:13,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:13,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:13,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:12:13,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:13,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:13,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:13,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:13,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:13,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:13,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 00:12:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:13,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:13,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:13,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:13,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:13,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:13,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:13,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:13,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:13,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:13,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:13,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:13,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 00:12:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:13,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:13,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:13,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:13,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:13,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:13,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:13,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:13,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:13,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:13,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:13,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:13,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 00:12:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:13,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:13,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:13,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:13,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:13,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:13,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:13,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:13,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:13,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:13,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:13,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:13,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 00:12:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:13,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:13,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:13,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:13,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:13,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:12:13,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:13,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:13,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:13,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:13,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:13,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:13,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 00:12:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:13,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:13,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:13,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:13,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:13,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:12:13,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:13,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:13,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:13,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:13,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:13,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:13,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-14 00:12:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:13,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:13,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:13,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:13,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:13,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:12:13,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:13,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:13,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:13,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:13,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:13,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:13,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-14 00:12:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:13,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:13,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:13,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:13,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:13,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:12:13,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:13,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:13,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:13,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:13,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:13,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:13,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-14 00:12:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:13,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:13,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:13,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:13,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:13,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:13,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:13,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:13,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:13,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:13,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:13,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:13,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-14 00:12:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:13,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:13,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:13,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:13,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:13,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:13,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:13,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:13,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:13,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:13,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:13,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:13,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-14 00:12:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:13,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:13,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:13,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:13,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:13,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:12:13,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:13,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:13,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:13,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:13,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:13,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:13,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-14 00:12:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:13,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:13,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:13,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:13,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:13,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:12:13,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:13,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:13,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:13,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:13,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:13,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:13,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-14 00:12:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:13,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:13,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:13,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:13,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:13,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:12:13,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:13,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:13,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:13,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:13,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:13,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:13,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1585 backedges. 81 proven. 1024 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-10-14 00:12:13,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600219301] [2020-10-14 00:12:13,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:12:13,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-14 00:12:13,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958474976] [2020-10-14 00:12:13,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-14 00:12:13,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:12:13,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-14 00:12:13,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=700, Unknown=0, NotChecked=0, Total=756 [2020-10-14 00:12:13,889 INFO L87 Difference]: Start difference. First operand 213 states and 215 transitions. Second operand 28 states. [2020-10-14 00:12:20,568 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-14 00:12:20,837 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-14 00:12:21,288 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-14 00:12:21,575 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-14 00:12:22,047 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-14 00:12:22,349 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-14 00:12:22,586 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-14 00:12:23,078 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 100 [2020-10-14 00:12:23,500 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 103 [2020-10-14 00:12:23,902 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 106 [2020-10-14 00:12:24,328 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 105 [2020-10-14 00:12:24,681 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 109 [2020-10-14 00:12:25,167 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 108 [2020-10-14 00:12:25,663 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 112 [2020-10-14 00:12:25,915 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-14 00:12:31,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:12:31,544 INFO L93 Difference]: Finished difference Result 228 states and 231 transitions. [2020-10-14 00:12:31,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2020-10-14 00:12:31,546 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 210 [2020-10-14 00:12:31,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:12:31,549 INFO L225 Difference]: With dead ends: 228 [2020-10-14 00:12:31,549 INFO L226 Difference]: Without dead ends: 226 [2020-10-14 00:12:31,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 51 SyntacticMatches, 44 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1857 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=1704, Invalid=8396, Unknown=0, NotChecked=0, Total=10100 [2020-10-14 00:12:31,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-14 00:12:31,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 221. [2020-10-14 00:12:31,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-10-14 00:12:31,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 223 transitions. [2020-10-14 00:12:31,573 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 223 transitions. Word has length 210 [2020-10-14 00:12:31,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:12:31,573 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 223 transitions. [2020-10-14 00:12:31,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-14 00:12:31,573 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 223 transitions. [2020-10-14 00:12:31,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-14 00:12:31,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:12:31,575 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:12:31,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-14 00:12:31,575 INFO L427 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:12:31,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:12:31,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1509487925, now seen corresponding path program 32 times [2020-10-14 00:12:31,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:12:31,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486159174] [2020-10-14 00:12:31,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:12:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:31,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:32,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:36,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:36,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-10-14 00:12:36,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:12:36,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 00:12:36,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:36,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:36,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-14 00:12:36,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 00:12:36,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-14 00:12:36,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:37,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:12:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:37,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:37,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:37,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:12:37,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:37,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:37,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:37,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:12:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:12:37,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:37,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 00:12:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:37,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:37,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:37,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:37,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:37,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:37,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:37,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:37,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:37,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:37,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:37,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:37,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 00:12:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:37,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:37,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:37,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:37,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:37,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:37,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:37,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:37,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:37,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:37,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:37,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:37,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 00:12:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:37,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:37,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:37,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:37,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:37,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:37,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:37,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:37,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:37,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:37,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:37,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:37,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 00:12:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:37,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:37,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:37,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:37,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:37,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:37,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:37,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:37,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:37,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:37,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:37,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:37,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 00:12:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:37,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:37,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:37,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:37,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:37,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:37,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:37,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:37,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:37,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:37,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:37,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:37,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 00:12:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:37,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:37,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:37,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:37,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:37,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:37,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:37,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:37,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:37,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:37,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:37,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 00:12:37,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:37,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:37,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:37,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:37,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:37,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:37,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:37,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:37,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:37,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:37,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:37,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:37,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 00:12:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:37,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:37,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:37,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:37,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:37,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:37,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:37,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:37,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:37,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:37,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:37,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:37,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-14 00:12:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:37,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:37,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:37,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:37,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:37,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:37,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:37,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:37,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:37,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:37,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:37,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:37,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-14 00:12:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:37,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:37,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:37,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:37,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:37,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:37,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:37,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:37,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:37,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:37,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:37,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:37,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-14 00:12:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:37,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:37,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:37,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:37,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:37,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:37,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:37,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:37,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:37,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:37,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:37,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:37,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-14 00:12:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:37,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:37,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:37,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:37,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:37,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:37,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:37,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:37,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:37,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:37,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:37,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:37,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-14 00:12:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:37,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:37,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:37,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:37,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:37,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:37,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:37,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:37,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:37,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:37,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:37,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:37,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-14 00:12:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:37,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:37,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:37,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:37,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:37,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:37,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:37,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:37,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:37,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:37,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:37,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:37,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-14 00:12:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:37,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:37,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:37,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:37,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:37,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:37,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:37,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:37,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:37,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:37,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:37,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:37,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-14 00:12:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:37,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:37,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:37,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:37,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:37,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:37,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:37,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:37,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:37,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:37,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:37,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:37,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-14 00:12:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:37,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:37,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:37,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:12:37,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:12:37,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 00:12:37,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:37,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:12:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:12:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:12:37,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:12:37,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1717 backedges. 612 proven. 561 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-10-14 00:12:37,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1486159174] [2020-10-14 00:12:37,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:12:37,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-14 00:12:37,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697002119] [2020-10-14 00:12:37,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 00:12:37,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:12:37,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 00:12:37,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=268, Unknown=0, NotChecked=0, Total=462 [2020-10-14 00:12:37,300 INFO L87 Difference]: Start difference. First operand 221 states and 223 transitions. Second operand 22 states. [2020-10-14 00:12:40,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:12:40,174 INFO L93 Difference]: Finished difference Result 382 states and 387 transitions. [2020-10-14 00:12:40,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-14 00:12:40,176 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 218 [2020-10-14 00:12:40,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:12:40,178 INFO L225 Difference]: With dead ends: 382 [2020-10-14 00:12:40,178 INFO L226 Difference]: Without dead ends: 227 [2020-10-14 00:12:40,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=576, Invalid=1064, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 00:12:40,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-10-14 00:12:40,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 225. [2020-10-14 00:12:40,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-10-14 00:12:40,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 227 transitions. [2020-10-14 00:12:40,197 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 227 transitions. Word has length 218 [2020-10-14 00:12:40,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:12:40,197 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 227 transitions. [2020-10-14 00:12:40,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 00:12:40,198 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 227 transitions. [2020-10-14 00:12:40,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-14 00:12:40,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:12:40,199 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:12:40,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-14 00:12:40,199 INFO L427 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:12:40,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:12:40,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1734903216, now seen corresponding path program 33 times [2020-10-14 00:12:40,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:12:40,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [183341192] [2020-10-14 00:12:40,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:12:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:12:40,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:43,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:12:45,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:12:45,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-10-14 00:12:45,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:12:45,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 00:12:45,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:12:45,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:12:45,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 75 [2020-10-14 00:12:45,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 00:12:45,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 248 [2020-10-14 00:12:45,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0