/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_o20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:48:35,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:48:35,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:48:35,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:48:35,142 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:48:35,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:48:35,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:48:35,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:48:35,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:48:35,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:48:35,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:48:35,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:48:35,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:48:35,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:48:35,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:48:35,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:48:35,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:48:35,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:48:35,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:48:35,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:48:35,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:48:35,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:48:35,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:48:35,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:48:35,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:48:35,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:48:35,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:48:35,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:48:35,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:48:35,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:48:35,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:48:35,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:48:35,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:48:35,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:48:35,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:48:35,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:48:35,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:48:35,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:48:35,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:48:35,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:48:35,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:48:35,182 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 23:48:35,210 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:48:35,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:48:35,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:48:35,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:48:35,212 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:48:35,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:48:35,212 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:48:35,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:48:35,213 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:48:35,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:48:35,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:48:35,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:48:35,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:48:35,214 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:48:35,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:48:35,214 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:48:35,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:48:35,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:48:35,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:48:35,215 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:48:35,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:48:35,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:48:35,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:48:35,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:48:35,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:48:35,216 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:48:35,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:48:35,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:48:35,217 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:48:35,217 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-09-24 23:48:35,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:48:35,741 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:48:35,746 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:48:35,749 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:48:35,751 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:48:35,752 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o20.c [2020-09-24 23:48:35,844 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a167c73d0/03c8e0f27fc64dd78f5573a05ddbee53/FLAG5a60a0b67 [2020-09-24 23:48:36,421 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:48:36,421 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_o20.c [2020-09-24 23:48:36,428 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a167c73d0/03c8e0f27fc64dd78f5573a05ddbee53/FLAG5a60a0b67 [2020-09-24 23:48:36,786 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a167c73d0/03c8e0f27fc64dd78f5573a05ddbee53 [2020-09-24 23:48:36,800 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:48:36,805 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:48:36,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:48:36,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:48:36,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:48:36,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:48:36" (1/1) ... [2020-09-24 23:48:36,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a6474c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:36, skipping insertion in model container [2020-09-24 23:48:36,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:48:36" (1/1) ... [2020-09-24 23:48:36,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:48:36,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:48:37,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:48:37,044 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:48:37,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:48:37,082 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:48:37,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:37 WrapperNode [2020-09-24 23:48:37,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:48:37,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:48:37,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:48:37,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:48:37,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:37" (1/1) ... [2020-09-24 23:48:37,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:37" (1/1) ... [2020-09-24 23:48:37,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:37" (1/1) ... [2020-09-24 23:48:37,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:37" (1/1) ... [2020-09-24 23:48:37,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:37" (1/1) ... [2020-09-24 23:48:37,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:37" (1/1) ... [2020-09-24 23:48:37,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:37" (1/1) ... [2020-09-24 23:48:37,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:48:37,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:48:37,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:48:37,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:48:37,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:37" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:48:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:48:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:48:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-24 23:48:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:48:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 23:48:37,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:48:37,295 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-24 23:48:37,295 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:48:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:48:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:48:37,473 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:48:37,474 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 23:48:37,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:48:37 BoogieIcfgContainer [2020-09-24 23:48:37,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:48:37,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:48:37,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:48:37,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:48:37,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:48:36" (1/3) ... [2020-09-24 23:48:37,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58890be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:48:37, skipping insertion in model container [2020-09-24 23:48:37,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:37" (2/3) ... [2020-09-24 23:48:37,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58890be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:48:37, skipping insertion in model container [2020-09-24 23:48:37,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:48:37" (3/3) ... [2020-09-24 23:48:37,494 INFO L109 eAbstractionObserver]: Analyzing ICFG id_o20.c [2020-09-24 23:48:37,506 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:48:37,518 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:48:37,540 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:48:37,570 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:48:37,570 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:48:37,570 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:48:37,571 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:48:37,571 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:48:37,571 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:48:37,571 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:48:37,571 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:48:37,591 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-09-24 23:48:37,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 23:48:37,598 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:37,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:37,599 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:37,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:37,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1651991454, now seen corresponding path program 1 times [2020-09-24 23:48:37,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:37,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2013606100] [2020-09-24 23:48:37,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:37,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:37,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:37,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 23:48:37,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:37,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 23:48:37,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:37,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:48:37,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 23:48:37,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:37,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:48:37,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:37,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:37,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:37,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:37,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:37,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:48:37,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:37,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:37,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:37,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:37,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:37,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:48:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:37,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:38,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:38,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:38,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:38,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 23:48:38,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:38,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:48:38,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:38,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:38,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:38,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:48:38,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2013606100] [2020-09-24 23:48:38,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:48:38,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:48:38,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727618392] [2020-09-24 23:48:38,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:48:38,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:38,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:48:38,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:48:38,089 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-09-24 23:48:38,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:38,217 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-24 23:48:38,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 23:48:38,221 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 23:48:38,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:38,240 INFO L225 Difference]: With dead ends: 37 [2020-09-24 23:48:38,241 INFO L226 Difference]: Without dead ends: 22 [2020-09-24 23:48:38,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:48:38,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-24 23:48:38,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-09-24 23:48:38,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-24 23:48:38,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-09-24 23:48:38,327 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2020-09-24 23:48:38,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:38,329 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-09-24 23:48:38,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:48:38,330 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-09-24 23:48:38,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-24 23:48:38,333 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:38,334 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:38,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:48:38,335 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:38,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:38,335 INFO L82 PathProgramCache]: Analyzing trace with hash 189324707, now seen corresponding path program 1 times [2020-09-24 23:48:38,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:38,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604642284] [2020-09-24 23:48:38,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:38,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:38,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:38,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:48:38,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:38,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-24 23:48:38,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:38,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:48:38,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 23:48:38,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 23:48:38,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:38,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:38,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:38,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:38,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:38,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:38,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:48:38,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:38,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:38,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:38,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:38,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 23:48:38,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:48:38,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:38,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:38,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:38,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:48:38,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:38,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-24 23:48:38,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:38,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:38,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:38,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:48:38,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:48:38,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:38,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:38,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:38,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:38,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:38,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:38,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 23:48:38,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:38,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:48:38,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:38,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:38,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:39,007 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 23:48:39,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604642284] [2020-09-24 23:48:39,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:39,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:48:39,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147051202] [2020-09-24 23:48:39,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:48:39,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:39,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:48:39,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:48:39,019 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 7 states. [2020-09-24 23:48:39,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:39,099 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-09-24 23:48:39,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 23:48:39,100 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-09-24 23:48:39,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:39,102 INFO L225 Difference]: With dead ends: 31 [2020-09-24 23:48:39,102 INFO L226 Difference]: Without dead ends: 26 [2020-09-24 23:48:39,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:48:39,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-24 23:48:39,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-24 23:48:39,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-24 23:48:39,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-24 23:48:39,111 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 23 [2020-09-24 23:48:39,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:39,112 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-24 23:48:39,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:48:39,112 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-24 23:48:39,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 23:48:39,113 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:39,114 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:39,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:48:39,114 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:39,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:39,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1416732684, now seen corresponding path program 2 times [2020-09-24 23:48:39,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:39,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [232782999] [2020-09-24 23:48:39,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:39,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:39,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:39,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 23:48:39,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:39,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-24 23:48:39,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:39,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:48:39,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-24 23:48:39,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:48:39,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:39,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:39,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:39,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:39,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:39,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:39,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:48:39,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:39,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:39,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:39,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:39,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:39,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:48:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:39,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:39,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:39,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:48:39,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:39,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 23:48:39,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:39,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:39,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:39,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:48:39,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:39,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:39,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:39,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:39,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:48:39,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:39,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 23:48:39,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:39,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:39,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:39,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:48:39,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:39,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:39,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:39,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:39,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:39,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:39,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:39,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:48:39,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:39,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:48:39,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:39,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:39,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:39,659 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 23:48:39,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [232782999] [2020-09-24 23:48:39,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:39,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 23:48:39,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857042618] [2020-09-24 23:48:39,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:48:39,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:39,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:48:39,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:48:39,662 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 9 states. [2020-09-24 23:48:39,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:39,759 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2020-09-24 23:48:39,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 23:48:39,760 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-09-24 23:48:39,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:39,761 INFO L225 Difference]: With dead ends: 35 [2020-09-24 23:48:39,761 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 23:48:39,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:48:39,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 23:48:39,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-24 23:48:39,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-24 23:48:39,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-24 23:48:39,769 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 30 [2020-09-24 23:48:39,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:39,769 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-24 23:48:39,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:48:39,770 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-24 23:48:39,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-24 23:48:39,772 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:39,772 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:39,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:48:39,772 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:39,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:39,773 INFO L82 PathProgramCache]: Analyzing trace with hash -209476043, now seen corresponding path program 3 times [2020-09-24 23:48:39,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:39,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [704932479] [2020-09-24 23:48:39,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:39,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:40,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:40,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 23:48:40,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:40,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-09-24 23:48:40,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:40,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:48:40,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 23:48:40,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:48:40,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:40,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:40,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:40,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:40,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:40,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:40,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:48:40,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:40,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:40,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:40,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:40,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:40,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:48:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:40,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:40,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:40,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:48:40,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:40,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-09-24 23:48:40,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:40,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:48:40,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:40,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:48:40,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:40,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:40,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:40,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:40,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:48:40,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:40,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 23:48:40,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:40,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:40,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:40,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:48:40,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:40,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:40,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:40,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:40,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:48:40,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:40,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 23:48:40,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:40,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:40,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:40,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:48:40,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:40,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:40,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:40,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:40,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:40,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:40,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 23:48:40,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:40,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:48:40,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:40,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:40,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:40,739 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 23:48:40,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [704932479] [2020-09-24 23:48:40,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:40,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 23:48:40,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613414792] [2020-09-24 23:48:40,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 23:48:40,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:40,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 23:48:40,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:48:40,744 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 11 states. [2020-09-24 23:48:40,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:40,907 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-24 23:48:40,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:48:40,907 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-09-24 23:48:40,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:40,909 INFO L225 Difference]: With dead ends: 39 [2020-09-24 23:48:40,909 INFO L226 Difference]: Without dead ends: 34 [2020-09-24 23:48:40,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-09-24 23:48:40,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-24 23:48:40,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-09-24 23:48:40,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-24 23:48:40,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-09-24 23:48:40,926 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 37 [2020-09-24 23:48:40,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:40,926 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-09-24 23:48:40,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 23:48:40,926 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-09-24 23:48:40,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-24 23:48:40,929 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:40,929 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:40,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:48:40,930 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:40,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:40,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1007399302, now seen corresponding path program 4 times [2020-09-24 23:48:40,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:40,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [701776026] [2020-09-24 23:48:40,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:40,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:41,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:41,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 23:48:41,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:41,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-09-24 23:48:41,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:41,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:48:41,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-24 23:48:41,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 23:48:41,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:41,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:41,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:41,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:41,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:41,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:41,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:48:41,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:41,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:41,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:41,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:41,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:41,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:48:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:41,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:41,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:41,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 23:48:41,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:41,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-24 23:48:41,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:41,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:48:41,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:41,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:48:41,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:41,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:41,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:41,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:41,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:48:41,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:41,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-24 23:48:41,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:41,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:48:41,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:41,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:48:41,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:41,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:41,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:41,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:41,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:48:41,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:41,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 23:48:41,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:41,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:41,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:41,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:48:41,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:41,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:41,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:42,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:42,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:48:42,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:42,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 23:48:42,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:42,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:42,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:42,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:48:42,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:42,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:42,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:42,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:42,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:42,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:42,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:42,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 23:48:42,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:42,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:48:42,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:42,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:42,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:42,167 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-24 23:48:42,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [701776026] [2020-09-24 23:48:42,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:42,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 23:48:42,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215400854] [2020-09-24 23:48:42,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 23:48:42,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:42,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 23:48:42,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-09-24 23:48:42,171 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 13 states. [2020-09-24 23:48:42,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:42,407 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-09-24 23:48:42,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 23:48:42,409 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-09-24 23:48:42,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:42,410 INFO L225 Difference]: With dead ends: 43 [2020-09-24 23:48:42,411 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 23:48:42,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-09-24 23:48:42,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 23:48:42,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-24 23:48:42,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-24 23:48:42,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-24 23:48:42,428 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 44 [2020-09-24 23:48:42,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:42,428 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-24 23:48:42,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 23:48:42,429 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-24 23:48:42,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 23:48:42,434 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:42,434 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:42,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 23:48:42,438 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:42,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:42,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1787659065, now seen corresponding path program 5 times [2020-09-24 23:48:42,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:42,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671748962] [2020-09-24 23:48:42,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:42,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:42,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:42,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 23:48:42,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:42,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 389 [2020-09-24 23:48:42,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:42,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:48:42,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-24 23:48:42,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 23:48:42,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:48:42,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:42,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:42,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:42,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:42,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:42,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:48:42,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:42,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:42,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:42,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:42,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:42,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:48:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:42,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:43,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:43,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:48:43,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:43,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-09-24 23:48:43,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:48:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:48:43,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:43,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:43,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:43,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:43,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 23:48:43,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:43,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-24 23:48:43,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:43,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:48:43,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:43,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:48:43,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:43,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:43,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:43,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:43,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:48:43,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:43,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-09-24 23:48:43,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:43,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:48:43,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:43,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:48:43,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:43,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:43,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:43,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:43,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:48:43,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:43,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-24 23:48:43,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:43,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:43,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:43,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:48:43,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:43,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:43,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:43,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:43,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:48:43,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:43,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 23:48:43,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:43,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:43,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:43,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:48:43,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:43,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:43,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:43,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:43,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:43,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:43,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:43,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:48:43,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:43,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:48:43,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:43,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:43,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:43,999 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-24 23:48:44,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671748962] [2020-09-24 23:48:44,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:44,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 23:48:44,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205992094] [2020-09-24 23:48:44,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 23:48:44,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:44,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 23:48:44,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-09-24 23:48:44,003 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 15 states. [2020-09-24 23:48:44,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:44,272 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-24 23:48:44,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 23:48:44,273 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 51 [2020-09-24 23:48:44,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:44,275 INFO L225 Difference]: With dead ends: 47 [2020-09-24 23:48:44,275 INFO L226 Difference]: Without dead ends: 42 [2020-09-24 23:48:44,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2020-09-24 23:48:44,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-24 23:48:44,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-24 23:48:44,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 23:48:44,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-09-24 23:48:44,283 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 51 [2020-09-24 23:48:44,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:44,283 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-09-24 23:48:44,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 23:48:44,283 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-09-24 23:48:44,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-24 23:48:44,285 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:44,285 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:44,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 23:48:44,285 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:44,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:44,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1360883432, now seen corresponding path program 6 times [2020-09-24 23:48:44,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:44,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [890591945] [2020-09-24 23:48:44,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:44,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:44,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:44,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 23:48:44,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:44,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 513 [2020-09-24 23:48:44,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:44,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:48:44,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-24 23:48:44,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:48:44,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:44,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:44,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:44,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:44,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:44,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:44,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:48:44,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:44,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:44,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:44,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:44,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:44,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:48:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:44,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:45,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:45,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:48:45,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:45,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 428 [2020-09-24 23:48:45,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:45,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:48:45,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:45,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:48:45,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:45,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:45,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:45,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:45,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:45,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:48:45,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:45,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-09-24 23:48:45,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:45,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:48:45,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:45,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:48:45,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:48:45,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:45,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:45,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:45,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 23:48:45,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:45,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-09-24 23:48:45,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:45,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:48:45,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:45,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:48:45,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:46,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:46,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:46,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:46,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:48:46,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:46,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-24 23:48:46,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:46,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:48:46,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:46,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:48:46,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:46,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:46,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:46,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:46,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:48:46,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:46,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-24 23:48:46,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:46,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:46,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:46,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:48:46,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:46,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:46,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:46,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:46,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:48:46,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:46,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 23:48:46,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:46,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:46,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:46,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:48:46,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:46,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:46,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:46,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:46,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:46,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:46,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 23:48:46,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:46,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:48:46,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:46,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:46,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:46,479 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-09-24 23:48:46,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [890591945] [2020-09-24 23:48:46,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:46,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 23:48:46,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691209124] [2020-09-24 23:48:46,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 23:48:46,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:46,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 23:48:46,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-09-24 23:48:46,483 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 17 states. [2020-09-24 23:48:46,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:46,765 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-24 23:48:46,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 23:48:46,766 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 58 [2020-09-24 23:48:46,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:46,768 INFO L225 Difference]: With dead ends: 51 [2020-09-24 23:48:46,768 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 23:48:46,771 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2020-09-24 23:48:46,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 23:48:46,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-24 23:48:46,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-24 23:48:46,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-09-24 23:48:46,779 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 58 [2020-09-24 23:48:46,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:46,779 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-09-24 23:48:46,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 23:48:46,779 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-09-24 23:48:46,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-24 23:48:46,781 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:46,781 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:46,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 23:48:46,781 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:46,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:46,782 INFO L82 PathProgramCache]: Analyzing trace with hash -807968423, now seen corresponding path program 7 times [2020-09-24 23:48:46,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:46,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [70717697] [2020-09-24 23:48:46,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:46,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:47,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:47,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-24 23:48:47,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:47,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 597 [2020-09-24 23:48:47,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:47,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 23:48:47,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-24 23:48:47,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 23:48:47,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:47,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:47,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:47,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:47,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:47,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:47,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:48:47,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:47,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:47,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:47,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:47,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:47,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:48:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:47,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:47,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:47,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 23:48:47,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:47,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 501 [2020-09-24 23:48:47,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:47,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:48:47,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:47,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 23:48:47,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:47,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:48,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:48,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:48,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:48:48,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:48,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-09-24 23:48:48,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:48,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:48:48,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:48,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:48:48,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:48,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:48,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:48,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:48,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:48:48,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:48,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-24 23:48:48,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:48,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:48:48,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:48,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:48:48,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:48,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:48,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:48,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:48,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 23:48:48,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:48,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-09-24 23:48:48,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:48,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:48:48,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:48,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:48:48,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:48,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:48,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:49,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:49,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:48:49,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:49,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 23:48:49,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:49,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:48:49,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:49,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:48:49,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:49,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:49,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:49,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:49,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:48:49,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:49,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 23:48:49,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:49,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:49,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:49,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:48:49,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:49,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:49,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:49,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:49,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:48:49,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:49,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 23:48:49,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:49,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:49,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:49,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:48:49,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:49,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:49,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:49,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:49,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:49,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:49,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:48:49,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:49,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:48:49,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:49,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:49,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:49,442 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-09-24 23:48:49,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [70717697] [2020-09-24 23:48:49,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:49,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 23:48:49,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540870883] [2020-09-24 23:48:49,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 23:48:49,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:49,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 23:48:49,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:48:49,446 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 19 states. [2020-09-24 23:48:49,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:49,779 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-09-24 23:48:49,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-24 23:48:49,779 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 65 [2020-09-24 23:48:49,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:49,780 INFO L225 Difference]: With dead ends: 55 [2020-09-24 23:48:49,781 INFO L226 Difference]: Without dead ends: 50 [2020-09-24 23:48:49,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2020-09-24 23:48:49,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-24 23:48:49,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-24 23:48:49,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-24 23:48:49,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-24 23:48:49,789 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 65 [2020-09-24 23:48:49,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:49,789 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-24 23:48:49,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 23:48:49,790 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-24 23:48:49,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-24 23:48:49,791 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:49,791 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:49,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 23:48:49,792 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:49,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:49,792 INFO L82 PathProgramCache]: Analyzing trace with hash -705364310, now seen corresponding path program 8 times [2020-09-24 23:48:49,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:49,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526652] [2020-09-24 23:48:49,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:49,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:50,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:50,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-24 23:48:50,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:50,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 704 [2020-09-24 23:48:50,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:50,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 23:48:50,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-24 23:48:50,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 23:48:50,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:50,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:50,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:50,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:50,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:50,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:50,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:48:50,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:50,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:50,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:50,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:50,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:50,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:48:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:50,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:51,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:51,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 23:48:51,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:51,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 621 [2020-09-24 23:48:51,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:51,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 23:48:51,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:51,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:48:51,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:51,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:51,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:51,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:51,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 23:48:51,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:51,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 486 [2020-09-24 23:48:51,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:51,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:48:51,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:51,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 23:48:51,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:51,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:51,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:52,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:52,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:48:52,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:52,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-09-24 23:48:52,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:52,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:48:52,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:52,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:48:52,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:52,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:52,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:52,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:52,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:48:52,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:52,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-24 23:48:52,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:52,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:48:52,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:52,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:48:52,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:52,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:52,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:52,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:52,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:52,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 23:48:52,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:52,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-24 23:48:52,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:52,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:48:52,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:52,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:48:52,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:52,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:52,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:52,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:52,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:48:52,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:52,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 23:48:52,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:52,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:48:52,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:52,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:48:52,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:52,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:52,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:52,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:52,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:48:52,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:52,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 23:48:52,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:52,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:52,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:52,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:48:52,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:52,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:52,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:53,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:53,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:48:53,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:53,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 23:48:53,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:53,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:53,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:53,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:48:53,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:53,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:53,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:53,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:53,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:53,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:53,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:48:53,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:53,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:48:53,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:53,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:53,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:53,157 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-24 23:48:53,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1526652] [2020-09-24 23:48:53,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:53,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-24 23:48:53,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221697972] [2020-09-24 23:48:53,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-24 23:48:53,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:53,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-24 23:48:53,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-09-24 23:48:53,160 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 21 states. [2020-09-24 23:48:53,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:53,570 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-24 23:48:53,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-24 23:48:53,571 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-09-24 23:48:53,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:53,572 INFO L225 Difference]: With dead ends: 59 [2020-09-24 23:48:53,573 INFO L226 Difference]: Without dead ends: 54 [2020-09-24 23:48:53,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2020-09-24 23:48:53,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-24 23:48:53,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-24 23:48:53,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-24 23:48:53,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-09-24 23:48:53,580 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 72 [2020-09-24 23:48:53,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:53,580 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-09-24 23:48:53,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-24 23:48:53,581 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-09-24 23:48:53,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-24 23:48:53,582 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:53,582 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:53,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 23:48:53,582 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:53,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:53,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1418439701, now seen corresponding path program 9 times [2020-09-24 23:48:53,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:53,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2115806086] [2020-09-24 23:48:53,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:53,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:54,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:54,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-24 23:48:54,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:54,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 924 [2020-09-24 23:48:54,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:54,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 23:48:54,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-24 23:48:54,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:48:54,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:54,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:54,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:54,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:54,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:54,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:54,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:48:54,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:54,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:54,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:54,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:54,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:54,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:48:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:54,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:55,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:55,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 23:48:55,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:55,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 789 [2020-09-24 23:48:55,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:55,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 23:48:55,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:55,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 23:48:55,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:55,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:55,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:56,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:56,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 23:48:56,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:56,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 600 [2020-09-24 23:48:56,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:56,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 23:48:56,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:56,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:48:56,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:56,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:56,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:56,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:56,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 23:48:56,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:56,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-09-24 23:48:56,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:56,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:48:56,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:56,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 23:48:56,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:56,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:56,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:56,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:56,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:48:56,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:56,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-09-24 23:48:56,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:56,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:48:56,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:56,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:48:56,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:56,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:56,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:56,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:57,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:57,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:48:57,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:57,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-09-24 23:48:57,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:57,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:48:57,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:57,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:48:57,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:57,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:57,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:57,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:57,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 23:48:57,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:57,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-24 23:48:57,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:57,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:48:57,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:57,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:48:57,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:57,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:57,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:57,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:57,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:48:57,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:57,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 23:48:57,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:57,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:48:57,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:57,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:48:57,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:57,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:57,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:57,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:57,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:48:57,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:57,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 23:48:57,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:57,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:48:57,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:57,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:57,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:57,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:57,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:48:57,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:57,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 23:48:57,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:57,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:57,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:57,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:48:57,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:57,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:57,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:57,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:57,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:57,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:57,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:48:57,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:57,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:48:57,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:57,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:57,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:57,956 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-09-24 23:48:57,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2115806086] [2020-09-24 23:48:57,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:57,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-24 23:48:57,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731786236] [2020-09-24 23:48:57,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-24 23:48:57,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:57,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-24 23:48:57,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-09-24 23:48:57,960 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 23 states. [2020-09-24 23:48:58,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:58,542 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2020-09-24 23:48:58,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-24 23:48:58,542 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 79 [2020-09-24 23:48:58,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:58,543 INFO L225 Difference]: With dead ends: 63 [2020-09-24 23:48:58,544 INFO L226 Difference]: Without dead ends: 58 [2020-09-24 23:48:58,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=83, Invalid=973, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 23:48:58,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-24 23:48:58,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-24 23:48:58,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-24 23:48:58,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-24 23:48:58,551 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 79 [2020-09-24 23:48:58,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:58,551 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-24 23:48:58,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-24 23:48:58,551 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-24 23:48:58,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 23:48:58,552 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:58,553 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:58,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 23:48:58,553 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:58,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:58,554 INFO L82 PathProgramCache]: Analyzing trace with hash -182126020, now seen corresponding path program 10 times [2020-09-24 23:48:58,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:58,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145343136] [2020-09-24 23:48:58,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:58,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:59,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:59,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-24 23:48:59,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:59,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 907 [2020-09-24 23:48:59,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:59,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 23:48:59,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-24 23:48:59,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 23:48:59,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:59,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:59,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:59,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:59,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:59,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:59,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:48:59,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:59,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:59,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:59,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:59,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 23:48:59,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:48:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:59,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:00,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:00,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 23:49:00,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:00,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 755 [2020-09-24 23:49:00,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:00,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 23:49:00,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:00,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 23:49:00,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:00,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:00,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:01,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:01,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 23:49:01,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:01,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 680 [2020-09-24 23:49:01,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 23:49:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 23:49:01,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:01,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:01,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:01,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:01,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 23:49:01,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:01,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 491 [2020-09-24 23:49:01,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:01,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 23:49:01,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:01,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:49:01,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:01,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:01,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:02,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:02,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 23:49:02,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:02,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 398 [2020-09-24 23:49:02,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:02,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:49:02,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:02,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 23:49:02,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:02,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:02,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:02,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:02,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:49:02,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:02,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-09-24 23:49:02,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:02,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:49:02,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:02,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:49:02,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:02,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:02,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:02,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:02,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:49:02,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:02,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-09-24 23:49:02,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:02,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:49:02,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:02,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:49:02,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:02,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:02,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:02,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:02,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 23:49:02,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:02,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-09-24 23:49:02,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:02,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:49:02,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:02,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:49:02,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:02,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:02,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:03,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:03,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:49:03,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:03,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 23:49:03,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:03,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:49:03,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:03,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:49:03,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:03,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:03,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:03,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:03,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:49:03,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:03,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 23:49:03,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:03,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:03,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:03,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:49:03,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:03,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:03,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:03,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:03,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:49:03,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:03,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 23:49:03,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:03,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:03,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:03,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:49:03,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:03,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:03,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:03,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:03,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:49:03,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:03,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:49:03,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:03,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:49:03,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:03,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:49:03,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:03,409 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-09-24 23:49:03,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2145343136] [2020-09-24 23:49:03,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:03,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-24 23:49:03,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957578133] [2020-09-24 23:49:03,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-24 23:49:03,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:03,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-24 23:49:03,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-09-24 23:49:03,412 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 25 states. [2020-09-24 23:49:04,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:04,125 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-09-24 23:49:04,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-24 23:49:04,126 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2020-09-24 23:49:04,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:04,128 INFO L225 Difference]: With dead ends: 67 [2020-09-24 23:49:04,128 INFO L226 Difference]: Without dead ends: 62 [2020-09-24 23:49:04,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=91, Invalid=1169, Unknown=0, NotChecked=0, Total=1260 [2020-09-24 23:49:04,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-24 23:49:04,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-09-24 23:49:04,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-24 23:49:04,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-09-24 23:49:04,135 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 86 [2020-09-24 23:49:04,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:04,136 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-09-24 23:49:04,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-24 23:49:04,136 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-09-24 23:49:04,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-24 23:49:04,137 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:04,137 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:04,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 23:49:04,137 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:04,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:04,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1527469181, now seen corresponding path program 11 times [2020-09-24 23:49:04,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:04,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1731174757] [2020-09-24 23:49:04,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:04,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:05,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:05,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-24 23:49:05,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:05,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1136 [2020-09-24 23:49:05,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:05,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 23:49:05,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-24 23:49:05,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 23:49:05,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:05,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:05,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:05,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:05,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:05,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:05,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:49:05,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:05,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:05,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:05,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:05,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:05,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:05,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:06,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:06,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 23:49:06,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:06,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 891 [2020-09-24 23:49:06,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:06,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 23:49:06,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:06,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 23:49:06,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:06,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:06,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:07,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:07,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 23:49:07,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:07,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 783 [2020-09-24 23:49:07,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:07,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 23:49:07,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:07,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 23:49:07,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:07,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:07,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:07,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:07,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 23:49:07,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:07,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 586 [2020-09-24 23:49:07,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:07,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 23:49:07,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:07,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 23:49:07,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:07,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:07,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:08,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:08,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 23:49:08,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:08,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 458 [2020-09-24 23:49:08,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:08,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 23:49:08,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:08,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:49:08,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:08,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:08,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:08,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:08,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 23:49:08,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:08,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 375 [2020-09-24 23:49:08,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:49:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 23:49:08,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:08,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:08,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:09,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:09,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:49:09,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:09,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-24 23:49:09,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:09,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:49:09,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:09,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:49:09,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:09,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:09,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:09,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:09,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:09,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:49:09,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:09,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-09-24 23:49:09,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:09,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:49:09,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:09,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:49:09,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:09,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:09,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:09,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:09,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 23:49:09,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:09,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 23:49:09,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:09,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:49:09,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:09,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:49:09,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:09,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:09,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:09,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:09,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:09,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:49:09,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:09,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 23:49:09,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:09,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:49:09,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:09,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:49:09,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:09,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:09,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:09,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:09,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:49:09,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:09,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 23:49:09,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:09,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:09,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:09,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:49:09,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:09,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:09,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:09,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:09,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:09,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:49:09,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:09,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 23:49:09,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:09,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:09,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:09,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:49:09,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:09,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:09,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:09,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:09,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:49:09,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:09,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:49:09,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:09,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:49:09,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:09,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:49:09,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:10,054 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-09-24 23:49:10,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1731174757] [2020-09-24 23:49:10,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:10,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-24 23:49:10,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992685969] [2020-09-24 23:49:10,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-24 23:49:10,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:10,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-24 23:49:10,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-09-24 23:49:10,056 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 27 states. [2020-09-24 23:49:10,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:10,911 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-09-24 23:49:10,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-24 23:49:10,911 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 93 [2020-09-24 23:49:10,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:10,913 INFO L225 Difference]: With dead ends: 71 [2020-09-24 23:49:10,913 INFO L226 Difference]: Without dead ends: 66 [2020-09-24 23:49:10,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=1383, Unknown=0, NotChecked=0, Total=1482 [2020-09-24 23:49:10,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-24 23:49:10,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-24 23:49:10,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-24 23:49:10,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-09-24 23:49:10,921 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 93 [2020-09-24 23:49:10,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:10,921 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-09-24 23:49:10,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-24 23:49:10,921 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-09-24 23:49:10,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-09-24 23:49:10,922 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:10,922 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:10,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 23:49:10,923 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:10,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:10,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1034648626, now seen corresponding path program 12 times [2020-09-24 23:49:10,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:10,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1706163306] [2020-09-24 23:49:10,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:10,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:12,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:12,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 23:49:12,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:12,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1258 [2020-09-24 23:49:12,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:12,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-24 23:49:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:49:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 23:49:12,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:12,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:12,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:12,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:12,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:12,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:12,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:12,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:12,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:12,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:12,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:12,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:12,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:12,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:13,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:13,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 23:49:13,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:13,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1076 [2020-09-24 23:49:13,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:13,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 23:49:13,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:13,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 23:49:13,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:13,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:13,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:14,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:14,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 23:49:14,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:14,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 23:49:14,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:14,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 23:49:14,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:14,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 23:49:14,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:14,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:14,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:15,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:15,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 23:49:15,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:15,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 761 [2020-09-24 23:49:15,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:15,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 23:49:15,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:15,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 23:49:15,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:15,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:15,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:15,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:15,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 23:49:15,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:15,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 601 [2020-09-24 23:49:15,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:15,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 23:49:15,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:15,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 23:49:15,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:15,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:15,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:16,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:16,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 23:49:16,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:16,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 474 [2020-09-24 23:49:16,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:16,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 23:49:16,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:16,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:49:16,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:16,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:16,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:16,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:16,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 23:49:16,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:16,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 498 [2020-09-24 23:49:16,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:16,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:49:16,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:16,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 23:49:16,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:17,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:17,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:17,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:17,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:49:17,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:17,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-09-24 23:49:17,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:17,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:49:17,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:17,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:49:17,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:17,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:17,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:17,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:17,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:49:17,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:17,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-24 23:49:17,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:17,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:49:17,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:17,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:49:17,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:17,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:17,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:17,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:17,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:17,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 23:49:17,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:17,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-24 23:49:17,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:17,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:49:17,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:17,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:49:17,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:17,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:17,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:17,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:17,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:49:17,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:17,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 23:49:17,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:17,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:49:17,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:17,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:49:17,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:18,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:18,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:18,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:18,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:49:18,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:18,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 23:49:18,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:18,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:18,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:18,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:49:18,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:18,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:18,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:18,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:18,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:49:18,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:18,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 23:49:18,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:18,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:18,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:18,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:49:18,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:18,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:18,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:18,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:18,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:49:18,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:18,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:49:18,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:18,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:49:18,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:18,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:49:18,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:18,448 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-09-24 23:49:18,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1706163306] [2020-09-24 23:49:18,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:18,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-09-24 23:49:18,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937157971] [2020-09-24 23:49:18,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-09-24 23:49:18,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:18,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-09-24 23:49:18,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-09-24 23:49:18,452 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 29 states. [2020-09-24 23:49:19,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:19,482 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2020-09-24 23:49:19,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-24 23:49:19,483 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 100 [2020-09-24 23:49:19,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:19,485 INFO L225 Difference]: With dead ends: 75 [2020-09-24 23:49:19,485 INFO L226 Difference]: Without dead ends: 70 [2020-09-24 23:49:19,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=107, Invalid=1615, Unknown=0, NotChecked=0, Total=1722 [2020-09-24 23:49:19,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-24 23:49:19,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-24 23:49:19,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-24 23:49:19,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-24 23:49:19,508 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 100 [2020-09-24 23:49:19,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:19,509 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-24 23:49:19,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-09-24 23:49:19,509 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-24 23:49:19,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-24 23:49:19,513 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:19,513 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:19,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 23:49:19,514 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:19,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:19,514 INFO L82 PathProgramCache]: Analyzing trace with hash 996041487, now seen corresponding path program 13 times [2020-09-24 23:49:19,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:19,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [732742812] [2020-09-24 23:49:19,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:19,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:21,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:21,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-24 23:49:21,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:21,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1520 [2020-09-24 23:49:21,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:21,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 23:49:21,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 23:49:21,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 23:49:21,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:21,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:21,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:21,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:21,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:21,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:21,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:21,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:21,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:21,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:21,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:21,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:21,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:21,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:22,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:22,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-24 23:49:22,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:22,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1326 [2020-09-24 23:49:22,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:22,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 23:49:22,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:22,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 23:49:22,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:22,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:22,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:23,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:23,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 23:49:23,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:23,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1086 [2020-09-24 23:49:23,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:23,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 23:49:23,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:23,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 23:49:23,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:23,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:23,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:23,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:24,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:24,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 23:49:24,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:24,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1013 [2020-09-24 23:49:24,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:24,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 23:49:24,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 23:49:24,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:24,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:24,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:25,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:25,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 23:49:25,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:25,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 739 [2020-09-24 23:49:25,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:25,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 23:49:25,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:25,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 23:49:25,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:25,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:25,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:26,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:26,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 23:49:26,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:26,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 575 [2020-09-24 23:49:26,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:26,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 23:49:26,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:26,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 23:49:26,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:26,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:26,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:26,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:26,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 23:49:26,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:26,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-09-24 23:49:26,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:26,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 23:49:26,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:26,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:49:26,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:26,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:26,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:27,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:27,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 23:49:27,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:27,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-09-24 23:49:27,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:27,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:49:27,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:27,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 23:49:27,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:27,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:27,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:27,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:27,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:49:27,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:27,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-24 23:49:27,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:27,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:49:27,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:27,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:49:27,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:27,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:27,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:27,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:27,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:49:27,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:27,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-09-24 23:49:27,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:27,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:49:27,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:27,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:49:27,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:27,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:27,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:27,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:27,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 23:49:27,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:27,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 23:49:27,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:27,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:49:27,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:27,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:49:27,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:27,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:28,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:28,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:28,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:49:28,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:28,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 23:49:28,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:28,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:49:28,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:28,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:49:28,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:28,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:28,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:28,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:28,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:28,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:49:28,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:28,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 23:49:28,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:28,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:28,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:28,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:49:28,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:28,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:28,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:28,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:28,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:49:28,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:28,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 23:49:28,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:28,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:28,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:28,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:49:28,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:28,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:28,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:28,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:28,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:49:28,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:28,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:49:28,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:28,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:49:28,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:28,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:49:28,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:28,530 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-09-24 23:49:28,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [732742812] [2020-09-24 23:49:28,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:28,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-09-24 23:49:28,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859734575] [2020-09-24 23:49:28,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-09-24 23:49:28,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:28,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-09-24 23:49:28,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-09-24 23:49:28,533 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 31 states. [2020-09-24 23:49:29,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:29,612 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-24 23:49:29,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-09-24 23:49:29,613 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 107 [2020-09-24 23:49:29,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:29,614 INFO L225 Difference]: With dead ends: 79 [2020-09-24 23:49:29,614 INFO L226 Difference]: Without dead ends: 74 [2020-09-24 23:49:29,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=115, Invalid=1865, Unknown=0, NotChecked=0, Total=1980 [2020-09-24 23:49:29,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-24 23:49:29,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-24 23:49:29,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-24 23:49:29,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2020-09-24 23:49:29,622 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 107 [2020-09-24 23:49:29,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:29,623 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2020-09-24 23:49:29,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-09-24 23:49:29,623 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2020-09-24 23:49:29,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-24 23:49:29,624 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:29,625 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:29,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 23:49:29,625 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:29,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:29,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1701157728, now seen corresponding path program 14 times [2020-09-24 23:49:29,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:29,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521129954] [2020-09-24 23:49:29,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:29,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:29,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:31,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:31,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 23:49:31,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:31,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1785 [2020-09-24 23:49:31,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:31,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-24 23:49:31,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-09-24 23:49:31,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 23:49:31,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:31,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:31,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:31,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:31,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:31,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:31,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:31,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:31,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:31,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:31,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:31,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:31,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:31,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:33,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:33,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-24 23:49:33,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:33,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1560 [2020-09-24 23:49:33,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:33,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 23:49:33,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:33,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-24 23:49:33,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:33,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:33,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking...