/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.3.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:20:23,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:20:23,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:20:23,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:20:23,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:20:23,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:20:23,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:20:23,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:20:23,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:20:23,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:20:23,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:20:23,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:20:23,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:20:23,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:20:23,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:20:23,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:20:23,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:20:23,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:20:23,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:20:23,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:20:23,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:20:23,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:20:23,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:20:23,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:20:23,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:20:23,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:20:23,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:20:23,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:20:23,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:20:23,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:20:23,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:20:23,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:20:23,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:20:23,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:20:23,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:20:23,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:20:23,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:20:23,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:20:23,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:20:23,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:20:23,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:20:23,150 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 13:20:23,197 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:20:23,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:20:23,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:20:23,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:20:23,199 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:20:23,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:20:23,200 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:20:23,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:20:23,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:20:23,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:20:23,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:20:23,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:20:23,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:20:23,201 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:20:23,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:20:23,201 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:20:23,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:20:23,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:20:23,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:20:23,202 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:20:23,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:20:23,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:20:23,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:20:23,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:20:23,203 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:20:23,203 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:20:23,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:20:23,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:20:23,203 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:20:23,204 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 13:20:23,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:20:23,548 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:20:23,552 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:20:23,553 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:20:23,554 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:20:23,555 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.3.ufo.BOUNDED-10.pals.c [2020-10-13 13:20:23,616 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed2336caf/3fded23e1b0a4ae9abec5756668665e6/FLAGbd8f866d7 [2020-10-13 13:20:24,153 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:20:24,154 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.3.ufo.BOUNDED-10.pals.c [2020-10-13 13:20:24,177 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed2336caf/3fded23e1b0a4ae9abec5756668665e6/FLAGbd8f866d7 [2020-10-13 13:20:24,449 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed2336caf/3fded23e1b0a4ae9abec5756668665e6 [2020-10-13 13:20:24,459 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:20:24,461 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:20:24,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:20:24,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:20:24,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:20:24,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:20:24" (1/1) ... [2020-10-13 13:20:24,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30847a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:24, skipping insertion in model container [2020-10-13 13:20:24,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:20:24" (1/1) ... [2020-10-13 13:20:24,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:20:24,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:20:25,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:20:25,201 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:20:25,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:20:25,416 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:20:25,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:25 WrapperNode [2020-10-13 13:20:25,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:20:25,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:20:25,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:20:25,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:20:25,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:25" (1/1) ... [2020-10-13 13:20:25,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:25" (1/1) ... [2020-10-13 13:20:25,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:25" (1/1) ... [2020-10-13 13:20:25,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:25" (1/1) ... [2020-10-13 13:20:25,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:25" (1/1) ... [2020-10-13 13:20:25,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:25" (1/1) ... [2020-10-13 13:20:25,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:25" (1/1) ... [2020-10-13 13:20:25,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:20:25,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:20:25,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:20:25,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:20:25,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:20:25,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:20:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:20:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 13:20:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-13 13:20:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-13 13:20:25,704 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-13 13:20:25,704 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-13 13:20:25,705 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-13 13:20:25,705 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 13:20:25,705 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-13 13:20:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:20:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-13 13:20:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:20:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 13:20:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 13:20:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 13:20:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 13:20:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 13:20:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 13:20:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 13:20:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 13:20:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 13:20:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 13:20:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 13:20:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-13 13:20:25,713 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 13:20:25,713 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 13:20:25,714 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:20:25,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:20:25,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:20:28,176 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:20:28,176 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 13:20:28,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:20:28 BoogieIcfgContainer [2020-10-13 13:20:28,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:20:28,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:20:28,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:20:28,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:20:28,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:20:24" (1/3) ... [2020-10-13 13:20:28,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac361c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:20:28, skipping insertion in model container [2020-10-13 13:20:28,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:25" (2/3) ... [2020-10-13 13:20:28,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac361c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:20:28, skipping insertion in model container [2020-10-13 13:20:28,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:20:28" (3/3) ... [2020-10-13 13:20:28,198 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.3.ufo.BOUNDED-10.pals.c [2020-10-13 13:20:28,209 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:20:28,218 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:20:28,233 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:20:28,263 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:20:28,263 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:20:28,263 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:20:28,264 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:20:28,264 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:20:28,264 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:20:28,264 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:20:28,264 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:20:28,296 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states. [2020-10-13 13:20:28,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-13 13:20:28,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:20:28,326 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:20:28,327 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:20:28,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:20:28,334 INFO L82 PathProgramCache]: Analyzing trace with hash 632860470, now seen corresponding path program 1 times [2020-10-13 13:20:28,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:20:28,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2021578676] [2020-10-13 13:20:28,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:20:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:29,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:30,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:30,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-13 13:20:30,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:30,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1169 [2020-10-13 13:20:30,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:30,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:30,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-13 13:20:30,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:30,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:20:31,185 WARN L193 SmtUtils]: Spent 869.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-13 13:20:31,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:20:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:31,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:31,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:31,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:20:31,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:31,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 13:20:31,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:31,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:31,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:20:31,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:31,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:31,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:20:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:31,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:31,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:31,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 13:20:31,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:31,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-13 13:20:31,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:31,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:31,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:20:31,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:31,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:20:31,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:20:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:31,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:31,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:31,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:20:31,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:31,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:20:31,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:31,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:31,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:20:31,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:31,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:31,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:20:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:31,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:31,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:31,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:31,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:31,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:20:31,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:20:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:31,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:20:31,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-13 13:20:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:31,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:31,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:31,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:31,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:31,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:20:31,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:31,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:31,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:20:31,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:31,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:20:31,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-13 13:20:31,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:31,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:31,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:31,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:31,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:31,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:20:31,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:31,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:31,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:20:31,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:31,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:20:31,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-13 13:20:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:31,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:31,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:31,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:31,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:31,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:20:31,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:31,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:31,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:20:31,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:31,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:31,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-13 13:20:31,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:31,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:31,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:31,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:31,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:31,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-13 13:20:31,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:31,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:31,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:20:31,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:31,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:31,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-13 13:20:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:31,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:31,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:31,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:31,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:31,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:20:31,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:31,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:31,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:20:31,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:31,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:20:32,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:20:32,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2021578676] [2020-10-13 13:20:32,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:20:32,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 13:20:32,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401660544] [2020-10-13 13:20:32,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 13:20:32,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:20:32,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 13:20:32,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-13 13:20:32,109 INFO L87 Difference]: Start difference. First operand 738 states. Second operand 8 states. [2020-10-13 13:20:35,025 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:35,688 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:36,314 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:36,995 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:37,681 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:38,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:20:38,572 INFO L93 Difference]: Finished difference Result 971 states and 1715 transitions. [2020-10-13 13:20:38,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 13:20:38,577 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 182 [2020-10-13 13:20:38,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:20:38,601 INFO L225 Difference]: With dead ends: 971 [2020-10-13 13:20:38,602 INFO L226 Difference]: Without dead ends: 783 [2020-10-13 13:20:38,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:20:38,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2020-10-13 13:20:38,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 733. [2020-10-13 13:20:38,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2020-10-13 13:20:38,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1327 transitions. [2020-10-13 13:20:38,786 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1327 transitions. Word has length 182 [2020-10-13 13:20:38,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:20:38,787 INFO L479 AbstractCegarLoop]: Abstraction has 733 states and 1327 transitions. [2020-10-13 13:20:38,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 13:20:38,787 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1327 transitions. [2020-10-13 13:20:38,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-13 13:20:38,795 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:20:38,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:20:38,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:20:38,796 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:20:38,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:20:38,796 INFO L82 PathProgramCache]: Analyzing trace with hash 279772088, now seen corresponding path program 1 times [2020-10-13 13:20:38,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:20:38,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315501245] [2020-10-13 13:20:38,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:20:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:39,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:41,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:41,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-13 13:20:41,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:41,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2496 [2020-10-13 13:20:41,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:41,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:20:41,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-13 13:20:41,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:20:41,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:20:42,424 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-13 13:20:42,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:20:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:42,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:42,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:42,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:20:42,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:42,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 13:20:42,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:42,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:42,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:20:42,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:42,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:42,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:20:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:42,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:43,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:43,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 13:20:43,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:43,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 621 [2020-10-13 13:20:43,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:43,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:20:43,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:20:43,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-13 13:20:43,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:43,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:20:43,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:43,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:43,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:43,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:20:43,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:43,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:20:43,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:43,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:20:43,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:20:43,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:20:43,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:43,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:20:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:43,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:43,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:43,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:43,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:43,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:20:43,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:43,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:43,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:20:43,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:43,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:43,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-13 13:20:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:43,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:43,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:43,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:43,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:43,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:20:43,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:43,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:43,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:20:43,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:43,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:20:43,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-13 13:20:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:43,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:43,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:43,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:43,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:43,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:20:43,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:43,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:43,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:20:43,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:43,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:20:43,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-13 13:20:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:43,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:43,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:43,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:43,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:43,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:20:43,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:43,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:43,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:20:43,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:43,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:20:43,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-13 13:20:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:43,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:43,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:43,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:43,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:43,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:20:43,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:43,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:43,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:20:43,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:43,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:43,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-13 13:20:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:43,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:43,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:43,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:43,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:43,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:20:43,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:43,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:43,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:20:43,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:43,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:20:43,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:20:43,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1315501245] [2020-10-13 13:20:43,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:20:43,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-13 13:20:43,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263640243] [2020-10-13 13:20:43,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:20:43,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:20:43,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:20:43,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:20:43,933 INFO L87 Difference]: Start difference. First operand 733 states and 1327 transitions. Second operand 14 states. [2020-10-13 13:20:52,564 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-13 13:20:53,442 WARN L193 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 362 [2020-10-13 13:20:54,415 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-13 13:20:55,211 WARN L193 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2020-10-13 13:20:56,439 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:57,198 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:57,938 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:58,808 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:59,616 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:21:01,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:21:01,006 INFO L93 Difference]: Finished difference Result 975 states and 1721 transitions. [2020-10-13 13:21:01,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 13:21:01,007 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 182 [2020-10-13 13:21:01,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:21:01,015 INFO L225 Difference]: With dead ends: 975 [2020-10-13 13:21:01,015 INFO L226 Difference]: Without dead ends: 794 [2020-10-13 13:21:01,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:21:01,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2020-10-13 13:21:01,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 733. [2020-10-13 13:21:01,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2020-10-13 13:21:01,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1267 transitions. [2020-10-13 13:21:01,191 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1267 transitions. Word has length 182 [2020-10-13 13:21:01,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:21:01,191 INFO L479 AbstractCegarLoop]: Abstraction has 733 states and 1267 transitions. [2020-10-13 13:21:01,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:21:01,192 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1267 transitions. [2020-10-13 13:21:01,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-13 13:21:01,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:21:01,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:21:01,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:21:01,197 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:21:01,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:21:01,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1918456809, now seen corresponding path program 1 times [2020-10-13 13:21:01,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:21:01,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594643651] [2020-10-13 13:21:01,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:21:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:01,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:01,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:02,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:03,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:06,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:06,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-13 13:21:06,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:21:06,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5083 [2020-10-13 13:21:06,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:06,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:21:06,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-13 13:21:06,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:21:06,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:21:07,313 WARN L193 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-13 13:21:07,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:21:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:07,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:07,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:07,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:21:07,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:07,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:21:07,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:07,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:07,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:21:07,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:07,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:07,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:21:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:07,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:07,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:07,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 13:21:07,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:07,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 365 [2020-10-13 13:21:07,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:07,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:21:07,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:21:07,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-13 13:21:07,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:21:07,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-13 13:21:07,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:07,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:07,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:07,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:21:07,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:07,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:21:07,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:07,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:21:07,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:21:07,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:21:07,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:07,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 13:21:07,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:07,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:07,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:07,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:21:07,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:07,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:21:07,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:07,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:21:07,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:21:07,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:21:07,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:08,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-13 13:21:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:08,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:08,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:08,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:21:08,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:08,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:21:08,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:08,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:08,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:21:08,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:08,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:08,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-13 13:21:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:08,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:08,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:08,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:21:08,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:08,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:21:08,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:08,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:08,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:21:08,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:08,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:08,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-13 13:21:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:08,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:08,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:08,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:21:08,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:08,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:21:08,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:08,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:08,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:21:08,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:08,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:08,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-13 13:21:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:08,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:08,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:08,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:21:08,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:08,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:21:08,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:08,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:08,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:21:08,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:08,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:08,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-13 13:21:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:08,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:08,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:08,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:21:08,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:08,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:21:08,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:08,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:08,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:21:08,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:08,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:21:08,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:21:08,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1594643651] [2020-10-13 13:21:08,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:21:08,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:21:08,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227301561] [2020-10-13 13:21:08,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:21:08,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:21:08,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:21:08,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:21:08,326 INFO L87 Difference]: Start difference. First operand 733 states and 1267 transitions. Second operand 11 states. [2020-10-13 13:21:09,177 WARN L193 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-13 13:21:15,216 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:21:15,588 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:21:16,093 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:21:16,336 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:21:17,039 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:21:17,344 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:21:18,203 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:21:18,498 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:21:19,313 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:21:19,614 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:21:21,540 WARN L193 SmtUtils]: Spent 924.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-13 13:21:22,142 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-13 13:21:22,426 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-13 13:21:22,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:21:22,510 INFO L93 Difference]: Finished difference Result 1182 states and 1999 transitions. [2020-10-13 13:21:22,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 13:21:22,511 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 241 [2020-10-13 13:21:22,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:21:22,519 INFO L225 Difference]: With dead ends: 1182 [2020-10-13 13:21:22,519 INFO L226 Difference]: Without dead ends: 1007 [2020-10-13 13:21:22,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:21:22,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2020-10-13 13:21:22,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 895. [2020-10-13 13:21:22,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 895 states. [2020-10-13 13:21:22,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1528 transitions. [2020-10-13 13:21:22,646 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1528 transitions. Word has length 241 [2020-10-13 13:21:22,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:21:22,647 INFO L479 AbstractCegarLoop]: Abstraction has 895 states and 1528 transitions. [2020-10-13 13:21:22,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:21:22,647 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1528 transitions. [2020-10-13 13:21:22,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-13 13:21:22,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:21:22,653 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:21:22,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:21:22,654 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:21:22,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:21:22,654 INFO L82 PathProgramCache]: Analyzing trace with hash 2039594722, now seen corresponding path program 1 times [2020-10-13 13:21:22,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:21:22,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [836365967] [2020-10-13 13:21:22,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:21:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:22,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:23,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:23,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:23,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:24,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:27,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:27,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-13 13:21:27,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:21:27,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-13 13:21:27,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:27,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:21:27,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 191 [2020-10-13 13:21:27,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 13:21:27,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:29,151 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 355 [2020-10-13 13:21:29,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:21:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:29,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:29,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:29,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:21:29,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:29,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:21:29,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:29,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:29,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:21:29,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:29,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:21:29,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:21:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:29,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:29,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:29,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 13:21:29,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:29,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 447 [2020-10-13 13:21:29,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:29,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:21:29,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:21:29,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-13 13:21:29,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:29,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-13 13:21:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:29,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:29,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:29,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:21:29,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:29,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:21:29,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:29,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:21:29,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:21:29,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:21:29,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:29,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 13:21:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:29,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:29,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:29,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:21:29,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:29,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:21:29,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:21:29,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:21:29,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:21:29,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:29,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-13 13:21:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:29,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:29,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:29,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:21:29,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:29,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:21:29,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:29,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:29,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:21:29,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:29,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:29,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-13 13:21:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:29,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:29,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:29,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:21:29,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:29,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:21:29,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:29,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:29,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:21:29,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:29,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:21:30,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-13 13:21:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:30,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:30,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:30,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:21:30,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:30,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:21:30,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:30,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:30,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:21:30,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:30,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:30,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 13:21:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:30,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:30,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:30,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:21:30,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:30,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:21:30,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:30,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:30,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:21:30,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:30,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:21:30,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-13 13:21:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:30,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:30,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:30,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:21:30,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:30,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:21:30,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:30,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:30,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:21:30,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:30,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:21:30,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:21:30,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [836365967] [2020-10-13 13:21:30,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:21:30,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:21:30,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574947620] [2020-10-13 13:21:30,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:21:30,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:21:30,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:21:30,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:21:30,287 INFO L87 Difference]: Start difference. First operand 895 states and 1528 transitions. Second operand 10 states. [2020-10-13 13:21:31,081 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-13 13:21:37,821 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:21:38,162 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:21:38,513 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:21:39,105 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:21:39,817 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:21:40,501 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:21:41,407 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-13 13:21:41,829 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-13 13:21:42,123 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-13 13:21:42,698 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-13 13:21:43,447 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-13 13:21:44,157 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-13 13:21:44,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:21:44,874 INFO L93 Difference]: Finished difference Result 1363 states and 2294 transitions. [2020-10-13 13:21:44,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:21:44,875 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 245 [2020-10-13 13:21:44,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:21:44,885 INFO L225 Difference]: With dead ends: 1363 [2020-10-13 13:21:44,885 INFO L226 Difference]: Without dead ends: 1186 [2020-10-13 13:21:44,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:21:44,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2020-10-13 13:21:45,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 1044. [2020-10-13 13:21:45,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2020-10-13 13:21:45,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1774 transitions. [2020-10-13 13:21:45,062 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1774 transitions. Word has length 245 [2020-10-13 13:21:45,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:21:45,062 INFO L479 AbstractCegarLoop]: Abstraction has 1044 states and 1774 transitions. [2020-10-13 13:21:45,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:21:45,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1774 transitions. [2020-10-13 13:21:45,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-13 13:21:45,067 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:21:45,067 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:21:45,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:21:45,068 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:21:45,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:21:45,069 INFO L82 PathProgramCache]: Analyzing trace with hash 952875653, now seen corresponding path program 1 times [2020-10-13 13:21:45,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:21:45,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [201986726] [2020-10-13 13:21:45,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:21:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:45,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:45,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:45,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:47,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:47,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:47,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:47,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:50,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:50,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-13 13:21:50,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:21:50,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-13 13:21:50,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:50,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:21:50,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-10-13 13:21:50,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 13:21:50,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:51,159 WARN L193 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-13 13:21:51,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:21:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:51,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:51,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:51,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:21:51,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:51,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:21:51,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:51,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:51,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:21:51,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:51,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:51,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:21:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:51,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:51,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:51,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 13:21:51,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:51,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-13 13:21:51,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:51,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:21:51,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:21:51,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-13 13:21:51,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:51,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-13 13:21:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:51,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:51,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:51,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:21:51,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:51,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:21:51,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:51,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:21:51,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:21:51,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:21:51,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:51,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 13:21:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:51,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:51,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:51,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:21:51,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:51,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:21:51,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:51,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:21:51,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:21:51,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:21:51,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:51,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-13 13:21:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:51,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:51,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:51,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:21:51,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:51,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:21:51,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:21:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:21:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:21:51,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:51,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-13 13:21:51,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:51,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:51,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:51,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:21:51,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:51,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:21:51,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:51,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:51,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:21:51,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:51,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:51,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-13 13:21:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:51,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:51,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:51,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:21:51,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:51,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:21:51,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:51,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:51,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:21:51,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:51,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:51,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 13:21:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:51,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:51,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:51,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:21:51,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:51,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:21:51,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:51,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:51,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:21:51,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:51,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:51,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-13 13:21:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:51,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:51,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:51,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:21:51,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:51,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:21:51,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:51,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:51,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:21:51,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:51,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:51,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:21:51,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [201986726] [2020-10-13 13:21:51,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:21:51,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:21:51,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100545123] [2020-10-13 13:21:51,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:21:51,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:21:51,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:21:51,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:21:51,948 INFO L87 Difference]: Start difference. First operand 1044 states and 1774 transitions. Second operand 11 states. [2020-10-13 13:21:52,735 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-13 13:21:58,866 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:21:59,310 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:21:59,666 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:22:00,207 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:22:00,439 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:01,215 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:22:01,489 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:02,317 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:22:02,611 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:04,001 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:05,199 WARN L193 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-13 13:22:05,461 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:22:05,780 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:22:05,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:22:05,988 INFO L93 Difference]: Finished difference Result 2272 states and 3764 transitions. [2020-10-13 13:22:05,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 13:22:05,989 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 245 [2020-10-13 13:22:05,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:22:05,999 INFO L225 Difference]: With dead ends: 2272 [2020-10-13 13:22:05,999 INFO L226 Difference]: Without dead ends: 1789 [2020-10-13 13:22:06,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:22:06,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1789 states. [2020-10-13 13:22:06,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1789 to 1498. [2020-10-13 13:22:06,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1498 states. [2020-10-13 13:22:06,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 2508 transitions. [2020-10-13 13:22:06,184 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 2508 transitions. Word has length 245 [2020-10-13 13:22:06,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:22:06,185 INFO L479 AbstractCegarLoop]: Abstraction has 1498 states and 2508 transitions. [2020-10-13 13:22:06,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:22:06,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 2508 transitions. [2020-10-13 13:22:06,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-13 13:22:06,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:22:06,190 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:22:06,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:22:06,190 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:22:06,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:22:06,191 INFO L82 PathProgramCache]: Analyzing trace with hash 405128929, now seen corresponding path program 1 times [2020-10-13 13:22:06,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:22:06,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231964612] [2020-10-13 13:22:06,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:22:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:06,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:06,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:06,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:06,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:07,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:07,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:11,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:11,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-10-13 13:22:11,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:22:11,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-13 13:22:11,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:11,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:22:11,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-10-13 13:22:11,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:22:11,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:12,115 WARN L193 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-13 13:22:12,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:22:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:12,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:12,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:12,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:22:12,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:12,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:22:12,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:12,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:22:12,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:12,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:22:12,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:12,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:22:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:12,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:12,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:12,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 13:22:12,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:12,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-13 13:22:12,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:12,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:12,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:12,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-13 13:22:12,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:12,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-13 13:22:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:12,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:12,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:12,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:22:12,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:12,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:22:12,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:12,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:12,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:12,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:22:12,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:12,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 13:22:12,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:12,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:12,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:12,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:22:12,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:12,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:22:12,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:12,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:12,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:12,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:22:12,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:12,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-13 13:22:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:12,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:12,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:12,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:22:12,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:12,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:22:12,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:12,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:12,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:12,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:22:12,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:12,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-13 13:22:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:12,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:12,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:12,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:22:12,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:12,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:22:12,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:12,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:22:12,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:22:12,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:22:12,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:12,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-13 13:22:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:12,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:12,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:12,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:22:12,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:12,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:22:12,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:12,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:22:12,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:22:12,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:22:12,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:12,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2020-10-13 13:22:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:12,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:12,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:12,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:22:12,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:12,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:22:12,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:12,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:22:12,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:22:12,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:22:12,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:12,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-13 13:22:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:12,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:12,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:12,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:22:12,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:12,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:22:12,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:12,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:22:12,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:22:12,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:22:12,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:12,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:22:12,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231964612] [2020-10-13 13:22:12,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:22:12,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:22:12,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532554886] [2020-10-13 13:22:12,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:22:12,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:22:12,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:22:12,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:22:12,815 INFO L87 Difference]: Start difference. First operand 1498 states and 2508 transitions. Second operand 11 states. [2020-10-13 13:22:13,681 WARN L193 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-13 13:22:20,131 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:22:20,622 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:22:21,272 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:21,645 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:22:22,199 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:22:22,444 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:23,263 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:22:23,543 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:24,935 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:25,593 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:26,686 WARN L193 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-13 13:22:26,957 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:22:27,243 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:22:27,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:22:27,517 INFO L93 Difference]: Finished difference Result 3896 states and 6372 transitions. [2020-10-13 13:22:27,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 13:22:27,520 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 249 [2020-10-13 13:22:27,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:22:27,541 INFO L225 Difference]: With dead ends: 3896 [2020-10-13 13:22:27,541 INFO L226 Difference]: Without dead ends: 2959 [2020-10-13 13:22:27,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:22:27,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2020-10-13 13:22:27,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 2379. [2020-10-13 13:22:27,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2379 states. [2020-10-13 13:22:27,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 3919 transitions. [2020-10-13 13:22:27,829 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 3919 transitions. Word has length 249 [2020-10-13 13:22:27,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:22:27,830 INFO L479 AbstractCegarLoop]: Abstraction has 2379 states and 3919 transitions. [2020-10-13 13:22:27,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:22:27,830 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 3919 transitions. [2020-10-13 13:22:27,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-10-13 13:22:27,836 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:22:27,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:22:27,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:22:27,836 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:22:27,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:22:27,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1018542077, now seen corresponding path program 1 times [2020-10-13 13:22:27,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:22:27,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [863239694] [2020-10-13 13:22:27,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:22:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:28,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:28,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:28,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:28,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:28,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:29,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:30,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:30,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:30,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:30,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:30,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:31,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:31,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:33,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:33,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-13 13:22:33,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 13:22:33,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-13 13:22:33,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:33,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:22:33,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 154 [2020-10-13 13:22:33,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-13 13:22:33,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:33,848 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-13 13:22:33,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:22:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:33,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:33,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:33,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:22:33,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:33,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:22:33,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:33,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:22:33,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:33,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:22:33,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:33,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:22:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:33,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:34,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:34,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 13:22:34,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:34,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-13 13:22:34,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:34,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:34,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:34,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-13 13:22:34,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:34,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-13 13:22:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:34,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:34,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:34,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:22:34,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:34,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:22:34,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:34,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:34,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:34,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:22:34,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:34,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 13:22:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:34,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:34,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:34,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:22:34,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:34,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:22:34,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:34,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:34,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:34,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:22:34,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:34,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-13 13:22:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:34,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:34,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:34,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:22:34,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:34,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:22:34,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:34,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:34,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:34,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:22:34,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:34,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-13 13:22:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:34,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:34,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:34,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:22:34,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:34,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:22:34,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:34,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:34,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:34,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:22:34,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:34,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-13 13:22:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:34,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:34,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:34,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:22:34,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:34,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:22:34,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:34,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:22:34,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:22:34,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:22:34,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:34,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-13 13:22:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:34,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:34,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:34,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:22:34,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:34,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:22:34,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:34,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:22:34,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:22:34,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:22:34,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:34,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-10-13 13:22:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:34,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:34,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:34,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:22:34,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:34,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:22:34,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:34,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:22:34,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:22:34,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:22:34,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:34,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:22:34,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [863239694] [2020-10-13 13:22:34,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:22:34,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:22:34,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363295135] [2020-10-13 13:22:34,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:22:34,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:22:34,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:22:34,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:22:34,526 INFO L87 Difference]: Start difference. First operand 2379 states and 3919 transitions. Second operand 11 states. [2020-10-13 13:22:35,367 WARN L193 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-13 13:22:42,003 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:22:42,462 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:22:43,110 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:22:43,790 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:44,180 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:22:44,764 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:22:45,015 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:46,489 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:47,126 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:47,611 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:48,680 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-13 13:22:48,945 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:22:49,228 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:22:49,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:22:49,542 INFO L93 Difference]: Finished difference Result 7063 states and 11417 transitions. [2020-10-13 13:22:49,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 13:22:49,543 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 253 [2020-10-13 13:22:49,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:22:49,568 INFO L225 Difference]: With dead ends: 7063 [2020-10-13 13:22:49,569 INFO L226 Difference]: Without dead ends: 5245 [2020-10-13 13:22:49,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:22:49,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5245 states. [2020-10-13 13:22:49,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5245 to 4087. [2020-10-13 13:22:49,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4087 states. [2020-10-13 13:22:50,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4087 states to 4087 states and 6627 transitions. [2020-10-13 13:22:50,000 INFO L78 Accepts]: Start accepts. Automaton has 4087 states and 6627 transitions. Word has length 253 [2020-10-13 13:22:50,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:22:50,001 INFO L479 AbstractCegarLoop]: Abstraction has 4087 states and 6627 transitions. [2020-10-13 13:22:50,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:22:50,001 INFO L276 IsEmpty]: Start isEmpty. Operand 4087 states and 6627 transitions. [2020-10-13 13:22:50,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-10-13 13:22:50,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:22:50,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:22:50,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:22:50,007 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:22:50,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:22:50,007 INFO L82 PathProgramCache]: Analyzing trace with hash -2069901863, now seen corresponding path program 1 times [2020-10-13 13:22:50,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:22:50,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1112802923] [2020-10-13 13:22:50,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:22:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:50,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:50,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:50,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:50,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:50,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:51,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:55,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:55,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-13 13:22:55,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:22:55,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-13 13:22:55,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:55,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:22:55,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-13 13:22:55,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-13 13:22:55,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:56,014 WARN L193 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-13 13:22:56,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:22:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:56,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:56,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:56,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:22:56,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:56,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:22:56,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:56,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:22:56,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:56,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:22:56,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:56,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:22:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:56,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:56,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:56,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 13:22:56,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:56,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-13 13:22:56,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:56,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:56,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:56,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-13 13:22:56,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:56,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-13 13:22:56,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:56,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:56,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:56,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:22:56,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:56,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:22:56,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:56,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:56,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:56,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:22:56,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:56,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 13:22:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:56,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:56,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:56,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:22:56,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:56,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:22:56,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:22:56,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:56,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-13 13:22:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:56,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:56,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:56,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:22:56,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:56,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:22:56,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:56,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:56,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:56,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:22:56,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:56,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-13 13:22:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:56,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:56,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:56,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:22:56,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:56,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:22:56,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:56,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:56,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:56,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:22:56,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:56,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-13 13:22:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:56,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:56,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:56,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:22:56,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:56,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:22:56,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:56,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:56,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:56,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:22:56,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:56,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-10-13 13:22:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:56,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:56,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:56,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:22:56,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:56,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:22:56,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:56,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:22:56,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:22:56,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:22:56,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:56,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-10-13 13:22:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:56,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:56,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:56,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:22:56,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:56,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:22:56,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:56,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:22:56,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:22:56,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:22:56,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:56,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:22:56,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1112802923] [2020-10-13 13:22:56,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:22:56,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:22:56,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345893714] [2020-10-13 13:22:56,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:22:56,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:22:56,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:22:56,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:22:56,662 INFO L87 Difference]: Start difference. First operand 4087 states and 6627 transitions. Second operand 11 states. [2020-10-13 13:22:57,474 WARN L193 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-13 13:23:04,289 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:23:04,731 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:23:05,376 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:23:05,952 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:23:06,524 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:23:06,892 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:23:07,865 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:23:08,548 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:23:09,044 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:23:09,549 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:23:10,608 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-13 13:23:10,875 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:23:11,158 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:23:11,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:23:11,524 INFO L93 Difference]: Finished difference Result 13235 states and 21165 transitions. [2020-10-13 13:23:11,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 13:23:11,525 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 257 [2020-10-13 13:23:11,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:23:11,567 INFO L225 Difference]: With dead ends: 13235 [2020-10-13 13:23:11,568 INFO L226 Difference]: Without dead ends: 9709 [2020-10-13 13:23:11,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:23:11,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9709 states. [2020-10-13 13:23:12,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9709 to 7395. [2020-10-13 13:23:12,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7395 states. [2020-10-13 13:23:12,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7395 states to 7395 states and 11815 transitions. [2020-10-13 13:23:12,139 INFO L78 Accepts]: Start accepts. Automaton has 7395 states and 11815 transitions. Word has length 257 [2020-10-13 13:23:12,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:23:12,140 INFO L479 AbstractCegarLoop]: Abstraction has 7395 states and 11815 transitions. [2020-10-13 13:23:12,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:23:12,140 INFO L276 IsEmpty]: Start isEmpty. Operand 7395 states and 11815 transitions. [2020-10-13 13:23:12,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-10-13 13:23:12,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:23:12,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:23:12,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:23:12,146 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:23:12,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:23:12,146 INFO L82 PathProgramCache]: Analyzing trace with hash -264427275, now seen corresponding path program 1 times [2020-10-13 13:23:12,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:23:12,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103879508] [2020-10-13 13:23:12,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:23:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:12,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:12,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:12,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:12,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:13,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:13,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:13,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:13,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:13,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:17,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:17,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-13 13:23:17,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:23:17,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-13 13:23:17,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:17,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-13 13:23:17,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-10-13 13:23:17,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-13 13:23:17,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:18,205 WARN L193 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-13 13:23:18,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:23:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:18,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:18,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:18,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:23:18,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:18,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:23:18,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:18,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:18,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:18,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:18,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:18,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:23:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:18,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:18,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:18,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 13:23:18,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:18,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-10-13 13:23:18,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:18,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:23:18,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:18,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-13 13:23:18,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:18,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-13 13:23:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:18,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:18,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:18,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:23:18,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:18,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:23:18,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:18,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:23:18,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:18,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:23:18,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:18,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 13:23:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:18,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:18,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:18,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:23:18,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:18,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:23:18,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:18,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:23:18,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:23:18,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:23:18,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:18,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-13 13:23:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:18,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:19,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:19,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:23:19,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:19,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:23:19,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:19,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:23:19,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:23:19,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:23:19,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:19,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-13 13:23:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:19,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:19,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:19,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:23:19,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:19,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:23:19,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:19,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:23:19,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:23:19,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:23:19,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:19,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-13 13:23:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:19,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:19,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:19,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:23:19,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:19,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:23:19,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:19,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:23:19,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:23:19,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:23:19,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:19,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-10-13 13:23:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:19,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:19,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:19,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:23:19,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:19,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:23:19,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:19,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:23:19,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:23:19,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:23:19,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:19,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2020-10-13 13:23:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:19,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:19,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:19,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:23:19,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:19,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:23:19,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:19,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:23:19,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:23:19,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:23:19,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:19,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:23:19,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103879508] [2020-10-13 13:23:19,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:23:19,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-13 13:23:19,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730931315] [2020-10-13 13:23:19,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-13 13:23:19,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:23:19,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-13 13:23:19,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:23:19,455 INFO L87 Difference]: Start difference. First operand 7395 states and 11815 transitions. Second operand 21 states. [2020-10-13 13:23:21,239 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 363 DAG size of output: 362 [2020-10-13 13:23:30,076 WARN L193 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-13 13:23:30,903 WARN L193 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-13 13:23:31,739 WARN L193 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-13 13:23:33,434 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 362 DAG size of output: 361 [2020-10-13 13:23:34,304 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 179 [2020-10-13 13:23:35,112 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 179 [2020-10-13 13:23:35,695 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:23:36,424 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 179 [2020-10-13 13:23:36,733 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:23:37,493 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:23:37,928 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:23:38,659 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 179 [2020-10-13 13:23:38,985 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-13 13:23:39,256 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:23:40,050 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:23:40,480 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:23:40,757 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:23:41,522 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 179 [2020-10-13 13:23:41,850 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-13 13:23:42,180 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-13 13:23:42,452 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:23:43,655 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 175 [2020-10-13 13:23:44,187 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:23:44,503 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:23:44,810 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:23:46,935 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 365 DAG size of output: 364 [2020-10-13 13:23:47,809 WARN L193 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2020-10-13 13:23:48,669 WARN L193 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-13 13:23:49,488 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-13 13:23:52,056 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 366 DAG size of output: 365 [2020-10-13 13:23:53,479 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 181 [2020-10-13 13:23:53,903 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-13 13:23:54,215 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-13 13:23:54,543 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-13 13:23:55,161 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 178 [2020-10-13 13:23:55,485 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-13 13:23:55,793 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-13 13:23:56,096 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:23:57,253 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:23:57,552 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-13 13:23:59,338 WARN L193 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-13 13:23:59,899 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 181 [2020-10-13 13:24:00,451 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 182 [2020-10-13 13:24:00,771 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-13 13:24:01,091 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-13 13:24:01,418 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-13 13:24:01,735 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:24:02,045 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-13 13:24:02,631 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 178 [2020-10-13 13:24:02,961 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-13 13:24:03,268 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-13 13:24:03,580 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:24:05,737 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-13 13:24:06,142 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-13 13:24:06,728 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 181 [2020-10-13 13:24:07,029 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-13 13:24:07,393 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-13 13:24:07,658 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:24:08,020 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-13 13:24:08,314 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:24:08,863 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 178 [2020-10-13 13:24:09,167 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-13 13:24:09,490 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-13 13:24:10,764 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 182 [2020-10-13 13:24:12,323 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-13 13:24:12,767 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-13 13:24:13,383 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 181 [2020-10-13 13:24:13,712 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-13 13:24:14,037 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:24:14,377 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 175