/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_opt-floodmax.3.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:43:04,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:43:04,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:43:04,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:43:04,080 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:43:04,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:43:04,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:43:04,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:43:04,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:43:04,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:43:04,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:43:04,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:43:04,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:43:04,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:43:04,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:43:04,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:43:04,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:43:04,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:43:04,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:43:04,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:43:04,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:43:04,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:43:04,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:43:04,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:43:04,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:43:04,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:43:04,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:43:04,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:43:04,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:43:04,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:43:04,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:43:04,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:43:04,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:43:04,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:43:04,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:43:04,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:43:04,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:43:04,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:43:04,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:43:04,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:43:04,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:43:04,125 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 [2020-10-15 02:43:04,149 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:43:04,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:43:04,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:43:04,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:43:04,152 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:43:04,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:43:04,152 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:43:04,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:43:04,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:43:04,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:43:04,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:43:04,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:43:04,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:43:04,154 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:43:04,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:43:04,154 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:43:04,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:43:04,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:43:04,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:43:04,155 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:43:04,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:43:04,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:43:04,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:43:04,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:43:04,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:43:04,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:43:04,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:43:04,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:43:04,157 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:43:04,157 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:43:04,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:43:04,497 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:43:04,500 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:43:04,502 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:43:04,502 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:43:04,503 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c [2020-10-15 02:43:04,584 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9191d9b11/f99cecc5ebde4887bdd2cc4e211774b0/FLAGd9ac0cbae [2020-10-15 02:43:05,202 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:43:05,203 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c [2020-10-15 02:43:05,217 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9191d9b11/f99cecc5ebde4887bdd2cc4e211774b0/FLAGd9ac0cbae [2020-10-15 02:43:05,457 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9191d9b11/f99cecc5ebde4887bdd2cc4e211774b0 [2020-10-15 02:43:05,469 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:43:05,471 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:43:05,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:43:05,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:43:05,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:43:05,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:43:05" (1/1) ... [2020-10-15 02:43:05,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2810e635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:43:05, skipping insertion in model container [2020-10-15 02:43:05,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:43:05" (1/1) ... [2020-10-15 02:43:05,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:43:05,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:43:05,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:43:05,971 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:43:06,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:43:06,092 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:43:06,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:43:06 WrapperNode [2020-10-15 02:43:06,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:43:06,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:43:06,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:43:06,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:43:06,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:43:06" (1/1) ... [2020-10-15 02:43:06,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:43:06" (1/1) ... [2020-10-15 02:43:06,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:43:06" (1/1) ... [2020-10-15 02:43:06,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:43:06" (1/1) ... [2020-10-15 02:43:06,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:43:06" (1/1) ... [2020-10-15 02:43:06,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:43:06" (1/1) ... [2020-10-15 02:43:06,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:43:06" (1/1) ... [2020-10-15 02:43:06,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:43:06,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:43:06,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:43:06,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:43:06,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:43:06" (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 [2020-10-15 02:43:06,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:43:06,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:43:06,244 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:43:06,244 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:43:06,244 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:43:06,245 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:43:06,246 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:43:06,247 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:43:06,247 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:43:06,247 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:43:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:43:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:43:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:43:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:43:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:43:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:43:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:43:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:43:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:43:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:43:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:43:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:43:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:43:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:43:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:43:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:43:07,142 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:43:07,142 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:43:07,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:43:07 BoogieIcfgContainer [2020-10-15 02:43:07,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:43:07,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:43:07,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:43:07,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:43:07,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:43:05" (1/3) ... [2020-10-15 02:43:07,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1501e01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:43:07, skipping insertion in model container [2020-10-15 02:43:07,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:43:06" (2/3) ... [2020-10-15 02:43:07,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1501e01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:43:07, skipping insertion in model container [2020-10-15 02:43:07,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:43:07" (3/3) ... [2020-10-15 02:43:07,161 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c [2020-10-15 02:43:07,175 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:43:07,186 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:43:07,205 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:43:07,237 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:43:07,237 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:43:07,237 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:43:07,237 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:43:07,238 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:43:07,238 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:43:07,238 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:43:07,238 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:43:07,268 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states. [2020-10-15 02:43:07,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 02:43:07,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:43:07,285 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] [2020-10-15 02:43:07,286 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:43:07,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:43:07,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1825328611, now seen corresponding path program 1 times [2020-10-15 02:43:07,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:43:07,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [741346349] [2020-10-15 02:43:07,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:43:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:07,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:08,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:08,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 02:43:08,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:08,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-10-15 02:43:08,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:08,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:08,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:08,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-15 02:43:08,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:08,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:43:08,308 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:43:08,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:43:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:08,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:08,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:08,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:43:08,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:08,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:43:08,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:08,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:08,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:08,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:08,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:43:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:08,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:08,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:08,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:43:08,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:08,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:43:08,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:08,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:08,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:08,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:08,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:08,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:08,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-15 02:43:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:08,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:08,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:08,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:43:08,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:08,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:43:08,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:08,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:08,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:08,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:43:08,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:08,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:08,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:43:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:08,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:08,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:08,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:08,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:08,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:43:08,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:08,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:08,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:08,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:43:08,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:08,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:08,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-15 02:43:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:08,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:08,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:08,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:08,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:08,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:43:08,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:08,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:08,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:08,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:43:08,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:08,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:08,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-15 02:43:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:08,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:08,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:08,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:08,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:08,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:43:08,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:08,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:08,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:08,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:43:08,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:08,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:08,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:43:08,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:08,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:08,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:08,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:43:08,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:08,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:43:08,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:08,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:08,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:08,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:43:08,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:08,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 36 [2020-10-15 02:43:08,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:43:08,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [741346349] [2020-10-15 02:43:08,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:43:08,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 02:43:08,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252229432] [2020-10-15 02:43:08,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 02:43:08,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:43:08,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 02:43:08,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:43:08,647 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 6 states. [2020-10-15 02:43:09,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:43:09,848 INFO L93 Difference]: Finished difference Result 294 states and 465 transitions. [2020-10-15 02:43:09,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 02:43:09,854 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-10-15 02:43:09,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:43:09,877 INFO L225 Difference]: With dead ends: 294 [2020-10-15 02:43:09,877 INFO L226 Difference]: Without dead ends: 184 [2020-10-15 02:43:09,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:43:09,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-10-15 02:43:09,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 169. [2020-10-15 02:43:09,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-15 02:43:09,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 271 transitions. [2020-10-15 02:43:09,947 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 271 transitions. Word has length 65 [2020-10-15 02:43:09,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:43:09,948 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 271 transitions. [2020-10-15 02:43:09,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 02:43:09,948 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 271 transitions. [2020-10-15 02:43:09,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 02:43:09,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:43:09,952 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] [2020-10-15 02:43:09,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:43:09,953 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:43:09,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:43:09,953 INFO L82 PathProgramCache]: Analyzing trace with hash 795969313, now seen corresponding path program 1 times [2020-10-15 02:43:09,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:43:09,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359267236] [2020-10-15 02:43:09,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:43:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:10,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:10,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:10,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 02:43:10,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:10,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 581 [2020-10-15 02:43:10,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:10,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:10,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:43:10,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 02:43:10,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:43:10,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:43:10,810 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:43:10,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:43:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:10,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:10,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:10,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:43:10,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:10,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 02:43:10,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:10,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:10,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:10,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:10,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:10,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:10,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:43:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:10,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:10,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:10,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:43:10,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:10,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-15 02:43:10,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:10,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:10,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:43:10,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:10,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 02:43:10,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:10,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-15 02:43:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:11,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:11,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:11,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:43:11,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:11,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:43:11,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:11,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:11,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:43:11,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:43:11,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:43:11,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:11,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 02:43:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:11,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:11,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:11,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:11,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:11,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:43:11,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:11,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:11,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:11,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:43:11,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:11,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:11,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-15 02:43:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:11,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:11,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:11,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:11,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:11,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:43:11,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:11,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:11,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:11,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:43:11,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:11,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:11,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-15 02:43:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:11,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:11,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:11,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:11,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:11,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:43:11,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:11,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:11,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:43:11,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:11,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:11,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:43:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:11,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:11,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:11,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:43:11,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:11,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:43:11,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:11,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:11,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:11,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:43:11,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:11,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:11,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:43:11,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1359267236] [2020-10-15 02:43:11,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:43:11,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 02:43:11,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016932913] [2020-10-15 02:43:11,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 02:43:11,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:43:11,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 02:43:11,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-15 02:43:11,299 INFO L87 Difference]: Start difference. First operand 169 states and 271 transitions. Second operand 12 states. [2020-10-15 02:43:11,884 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:43:12,090 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-15 02:43:12,384 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:43:12,585 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:43:14,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:43:14,242 INFO L93 Difference]: Finished difference Result 296 states and 467 transitions. [2020-10-15 02:43:14,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 02:43:14,243 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 65 [2020-10-15 02:43:14,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:43:14,249 INFO L225 Difference]: With dead ends: 296 [2020-10-15 02:43:14,249 INFO L226 Difference]: Without dead ends: 193 [2020-10-15 02:43:14,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:43:14,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-10-15 02:43:14,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 169. [2020-10-15 02:43:14,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-15 02:43:14,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 241 transitions. [2020-10-15 02:43:14,278 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 241 transitions. Word has length 65 [2020-10-15 02:43:14,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:43:14,278 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 241 transitions. [2020-10-15 02:43:14,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 02:43:14,278 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 241 transitions. [2020-10-15 02:43:14,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-15 02:43:14,281 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:43:14,282 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] [2020-10-15 02:43:14,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:43:14,282 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:43:14,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:43:14,283 INFO L82 PathProgramCache]: Analyzing trace with hash 483350775, now seen corresponding path program 1 times [2020-10-15 02:43:14,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:43:14,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926504599] [2020-10-15 02:43:14,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:43:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:14,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:14,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:14,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:17,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:19,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:19,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-15 02:43:19,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:43:19,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:43:19,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:19,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:19,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:43:19,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-15 02:43:19,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-15 02:43:19,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:19,513 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:43:19,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:43:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:19,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:19,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:19,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:43:19,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:19,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:43:19,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:19,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:19,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:19,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:19,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:19,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 02:43:19,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:43:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:19,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:19,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:19,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:43:19,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:19,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 02:43:19,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:19,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:19,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:19,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:19,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:43:19,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:19,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:43:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:19,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:19,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:19,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:43:19,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:19,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:43:19,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:19,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:19,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:19,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:19,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:43:19,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:19,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:43:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:19,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:19,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:19,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:19,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:19,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:43:19,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:19,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:19,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:19,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:19,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:43:19,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:19,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:43:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:19,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:19,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:19,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:19,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:19,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:43:19,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:19,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:19,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:43:19,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:43:19,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:43:19,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:19,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:43:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:19,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:19,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:19,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:19,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:19,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:43:19,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:19,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:19,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:19,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:43:19,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:19,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:19,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-15 02:43:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:19,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:19,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:19,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:43:19,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:19,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:43:19,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:19,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:19,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:19,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:43:19,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:19,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:19,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:43:19,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926504599] [2020-10-15 02:43:19,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:43:19,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:43:19,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887671470] [2020-10-15 02:43:19,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:43:19,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:43:19,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:43:19,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:43:19,886 INFO L87 Difference]: Start difference. First operand 169 states and 241 transitions. Second operand 9 states. [2020-10-15 02:43:20,049 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:43:22,003 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:43:22,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:43:22,210 INFO L93 Difference]: Finished difference Result 390 states and 584 transitions. [2020-10-15 02:43:22,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:43:22,210 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-10-15 02:43:22,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:43:22,219 INFO L225 Difference]: With dead ends: 390 [2020-10-15 02:43:22,219 INFO L226 Difference]: Without dead ends: 293 [2020-10-15 02:43:22,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:43:22,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-15 02:43:22,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 258. [2020-10-15 02:43:22,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-10-15 02:43:22,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 379 transitions. [2020-10-15 02:43:22,280 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 379 transitions. Word has length 94 [2020-10-15 02:43:22,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:43:22,284 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 379 transitions. [2020-10-15 02:43:22,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:43:22,285 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 379 transitions. [2020-10-15 02:43:22,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-15 02:43:22,294 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:43:22,294 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] [2020-10-15 02:43:22,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:43:22,295 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:43:22,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:43:22,298 INFO L82 PathProgramCache]: Analyzing trace with hash -491984318, now seen corresponding path program 1 times [2020-10-15 02:43:22,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:43:22,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5202302] [2020-10-15 02:43:22,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:43:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:22,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:22,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:22,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:22,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:26,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:27,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:27,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-15 02:43:27,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:43:27,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-15 02:43:27,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:27,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:27,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:43:27,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:43:27,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-15 02:43:27,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:27,678 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:43:27,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:43:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:27,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:27,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:27,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:43:27,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:27,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:43:27,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:27,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:27,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:27,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:27,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:27,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:27,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:43:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:27,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:27,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:27,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:43:27,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:27,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-15 02:43:27,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:27,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:27,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:43:27,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:27,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:43:27,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:27,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:43:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:27,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:27,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:27,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:43:27,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:27,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:43:27,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:27,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:27,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:27,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:27,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:43:27,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:27,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:43:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:27,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:27,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:27,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:27,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:27,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:43:27,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:27,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:27,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:27,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:27,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:43:27,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:27,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:43:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:27,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:27,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:27,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:43:27,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:27,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:43:27,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:27,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:27,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:27,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:43:27,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:43:27,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:27,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:43:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:27,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:27,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:27,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:27,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:27,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:43:27,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:27,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:27,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:27,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:43:27,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:27,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:27,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-15 02:43:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:27,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:27,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:27,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:43:27,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:27,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:43:27,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:27,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:27,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:27,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:43:27,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:27,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:28,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:43:28,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [5202302] [2020-10-15 02:43:28,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:43:28,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:43:28,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048421752] [2020-10-15 02:43:28,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:43:28,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:43:28,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:43:28,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:43:28,036 INFO L87 Difference]: Start difference. First operand 258 states and 379 transitions. Second operand 9 states. [2020-10-15 02:43:28,226 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:43:28,425 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:43:28,652 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-15 02:43:28,821 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:43:29,462 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:43:31,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:43:31,666 INFO L93 Difference]: Finished difference Result 789 states and 1172 transitions. [2020-10-15 02:43:31,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:43:31,666 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-10-15 02:43:31,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:43:31,671 INFO L225 Difference]: With dead ends: 789 [2020-10-15 02:43:31,671 INFO L226 Difference]: Without dead ends: 549 [2020-10-15 02:43:31,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:43:31,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-10-15 02:43:31,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 493. [2020-10-15 02:43:31,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2020-10-15 02:43:31,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 712 transitions. [2020-10-15 02:43:31,719 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 712 transitions. Word has length 96 [2020-10-15 02:43:31,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:43:31,720 INFO L479 AbstractCegarLoop]: Abstraction has 493 states and 712 transitions. [2020-10-15 02:43:31,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:43:31,720 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 712 transitions. [2020-10-15 02:43:31,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-15 02:43:31,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:43:31,723 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] [2020-10-15 02:43:31,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:43:31,723 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:43:31,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:43:31,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1862008872, now seen corresponding path program 1 times [2020-10-15 02:43:31,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:43:31,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [184735179] [2020-10-15 02:43:31,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:43:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:31,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:31,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:31,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:32,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:36,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:36,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-15 02:43:36,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:43:36,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-15 02:43:36,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:36,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:36,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:43:36,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:43:36,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-15 02:43:36,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:37,024 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:43:37,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:43:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:37,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:37,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:37,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:43:37,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:37,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:43:37,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:37,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:37,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:37,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:37,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:37,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:37,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:43:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:37,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:37,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:37,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:43:37,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:37,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 02:43:37,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:37,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:37,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:43:37,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:37,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:43:37,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:37,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:43:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:37,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:37,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:37,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:43:37,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:37,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:43:37,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:37,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:37,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:37,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:37,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:43:37,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:37,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:43:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:37,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:37,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:37,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:37,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:37,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:43:37,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:37,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:37,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:37,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:37,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:43:37,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:37,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:43:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:37,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:37,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:37,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:43:37,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:37,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:43:37,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:37,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:37,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:37,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:43:37,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:43:37,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:37,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 02:43:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:37,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:37,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:37,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:37,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:37,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:43:37,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:37,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:37,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:37,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:43:37,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:37,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:37,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:43:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:37,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:37,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:37,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:43:37,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:37,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:43:37,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:37,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:37,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:37,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:43:37,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:37,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:37,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:43:37,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [184735179] [2020-10-15 02:43:37,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:43:37,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:43:37,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371701822] [2020-10-15 02:43:37,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:43:37,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:43:37,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:43:37,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:43:37,365 INFO L87 Difference]: Start difference. First operand 493 states and 712 transitions. Second operand 9 states. [2020-10-15 02:43:37,555 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:43:37,704 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:43:37,919 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-15 02:43:38,098 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:43:38,672 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:43:40,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:43:40,643 INFO L93 Difference]: Finished difference Result 1495 states and 2179 transitions. [2020-10-15 02:43:40,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:43:40,645 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-10-15 02:43:40,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:43:40,652 INFO L225 Difference]: With dead ends: 1495 [2020-10-15 02:43:40,653 INFO L226 Difference]: Without dead ends: 1038 [2020-10-15 02:43:40,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:43:40,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-10-15 02:43:40,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 940. [2020-10-15 02:43:40,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2020-10-15 02:43:40,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1332 transitions. [2020-10-15 02:43:40,734 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1332 transitions. Word has length 97 [2020-10-15 02:43:40,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:43:40,735 INFO L479 AbstractCegarLoop]: Abstraction has 940 states and 1332 transitions. [2020-10-15 02:43:40,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:43:40,735 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1332 transitions. [2020-10-15 02:43:40,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-15 02:43:40,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:43:40,739 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] [2020-10-15 02:43:40,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:43:40,739 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:43:40,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:43:40,740 INFO L82 PathProgramCache]: Analyzing trace with hash -851022280, now seen corresponding path program 1 times [2020-10-15 02:43:40,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:43:40,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1026422300] [2020-10-15 02:43:40,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:43:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:40,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:40,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:40,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:40,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:41,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:45,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:45,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-15 02:43:45,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:43:45,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 02:43:45,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:45,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:45,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:43:45,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:43:45,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:43:45,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:46,037 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:43:46,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:43:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:46,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:46,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:46,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:43:46,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:46,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:43:46,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:46,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:46,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:46,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:46,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:46,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:46,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:43:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:46,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:46,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:46,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:43:46,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:46,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-15 02:43:46,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:46,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:46,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:43:46,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:46,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 02:43:46,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:46,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:43:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:46,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:46,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:46,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:43:46,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:46,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:43:46,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:46,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:46,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:46,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:46,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:43:46,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:46,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:43:46,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:46,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:46,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:46,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:46,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:46,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:43:46,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:46,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:46,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:46,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:46,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:43:46,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:46,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:43:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:46,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:46,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:46,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:43:46,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:46,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:43:46,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:46,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:46,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:46,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:43:46,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:43:46,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:46,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 02:43:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:46,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:46,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:46,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:46,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:46,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:43:46,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:46,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:46,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:46,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:43:46,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:46,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:46,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:43:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:46,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:46,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:46,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:43:46,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:46,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:43:46,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:46,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:46,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:46,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:43:46,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:46,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:46,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:43:46,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1026422300] [2020-10-15 02:43:46,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:43:46,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:43:46,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534635352] [2020-10-15 02:43:46,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:43:46,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:43:46,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:43:46,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:43:46,531 INFO L87 Difference]: Start difference. First operand 940 states and 1332 transitions. Second operand 9 states. [2020-10-15 02:43:46,762 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:43:46,967 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-15 02:43:47,170 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:43:47,819 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 162 [2020-10-15 02:43:48,437 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:43:51,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:43:51,250 INFO L93 Difference]: Finished difference Result 3362 states and 4768 transitions. [2020-10-15 02:43:51,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:43:51,251 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-10-15 02:43:51,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:43:51,266 INFO L225 Difference]: With dead ends: 3362 [2020-10-15 02:43:51,267 INFO L226 Difference]: Without dead ends: 2492 [2020-10-15 02:43:51,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:43:51,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2492 states. [2020-10-15 02:43:51,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2492 to 2300. [2020-10-15 02:43:51,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2300 states. [2020-10-15 02:43:51,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2300 states to 2300 states and 3195 transitions. [2020-10-15 02:43:51,438 INFO L78 Accepts]: Start accepts. Automaton has 2300 states and 3195 transitions. Word has length 97 [2020-10-15 02:43:51,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:43:51,439 INFO L479 AbstractCegarLoop]: Abstraction has 2300 states and 3195 transitions. [2020-10-15 02:43:51,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:43:51,439 INFO L276 IsEmpty]: Start isEmpty. Operand 2300 states and 3195 transitions. [2020-10-15 02:43:51,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-15 02:43:51,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:43:51,447 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] [2020-10-15 02:43:51,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:43:51,448 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:43:51,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:43:51,448 INFO L82 PathProgramCache]: Analyzing trace with hash -393850937, now seen corresponding path program 1 times [2020-10-15 02:43:51,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:43:51,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963507732] [2020-10-15 02:43:51,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:43:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:51,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:51,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:51,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:51,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:54,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:56,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:56,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-15 02:43:56,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:43:56,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:43:56,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:56,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:56,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:43:56,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-15 02:43:56,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:43:56,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:56,729 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:43:56,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:43:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:56,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:56,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:56,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:43:56,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:56,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:43:56,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:56,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:56,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:56,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:56,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:56,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:56,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:43:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:56,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:56,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:56,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:43:56,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:56,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-15 02:43:56,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:56,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:56,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:56,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:56,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:43:56,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:43:56,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:43:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:56,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:56,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:56,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:43:56,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:56,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:43:56,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:56,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:56,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:56,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:56,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:43:56,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:56,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:43:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:56,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:56,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:56,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:56,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:56,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:43:56,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:56,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:56,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:56,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:56,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:43:56,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:56,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:43:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:56,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:56,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:56,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:43:56,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:56,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:43:56,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:56,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:56,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:43:56,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:43:56,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:43:56,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:56,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:43:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:56,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:56,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:56,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:43:56,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:56,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:43:56,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:56,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:56,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:43:56,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:43:56,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:43:56,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:56,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-15 02:43:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:56,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:56,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:43:56,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:43:56,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:43:56,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:43:56,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:43:56,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:43:56,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:43:56,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:43:56,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:43:56,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:43:56,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:43:57,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [963507732] [2020-10-15 02:43:57,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:43:57,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:43:57,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724543231] [2020-10-15 02:43:57,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:43:57,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:43:57,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:43:57,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:43:57,006 INFO L87 Difference]: Start difference. First operand 2300 states and 3195 transitions. Second operand 9 states. [2020-10-15 02:43:57,164 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:43:59,218 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:43:59,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:43:59,398 INFO L93 Difference]: Finished difference Result 6006 states and 8717 transitions. [2020-10-15 02:43:59,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:43:59,403 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-10-15 02:43:59,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:43:59,424 INFO L225 Difference]: With dead ends: 6006 [2020-10-15 02:43:59,425 INFO L226 Difference]: Without dead ends: 4316 [2020-10-15 02:43:59,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:43:59,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4316 states. [2020-10-15 02:43:59,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4316 to 3878. [2020-10-15 02:43:59,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3878 states. [2020-10-15 02:43:59,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3878 states to 3878 states and 5523 transitions. [2020-10-15 02:43:59,731 INFO L78 Accepts]: Start accepts. Automaton has 3878 states and 5523 transitions. Word has length 98 [2020-10-15 02:43:59,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:43:59,732 INFO L479 AbstractCegarLoop]: Abstraction has 3878 states and 5523 transitions. [2020-10-15 02:43:59,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:43:59,732 INFO L276 IsEmpty]: Start isEmpty. Operand 3878 states and 5523 transitions. [2020-10-15 02:43:59,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-15 02:43:59,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:43:59,740 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] [2020-10-15 02:43:59,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:43:59,741 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:43:59,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:43:59,741 INFO L82 PathProgramCache]: Analyzing trace with hash -737718852, now seen corresponding path program 1 times [2020-10-15 02:43:59,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:43:59,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [242577683] [2020-10-15 02:43:59,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:43:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:43:59,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:59,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:43:59,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:00,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:00,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:02,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:04,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:04,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-15 02:44:04,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:44:04,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 02:44:04,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:04,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:04,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:44:04,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:44:04,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-15 02:44:04,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:04,970 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:44:04,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:44:04,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:04,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:04,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:04,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:44:04,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:04,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:44:04,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:04,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:44:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:44:04,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:44:04,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:44:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:05,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:05,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:05,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:44:05,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:05,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-15 02:44:05,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:05,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:05,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:44:05,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:05,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:44:05,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:44:05,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:44:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:05,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:05,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:05,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:44:05,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:05,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:44:05,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:05,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:05,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:05,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:05,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:44:05,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:05,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:44:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:05,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:05,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:05,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:44:05,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:05,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:44:05,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:05,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:44:05,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:05,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:44:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:05,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:05,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:05,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:44:05,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:05,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:44:05,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:05,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:05,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:05,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:05,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:44:05,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:44:05,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:44:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:05,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:05,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:05,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:44:05,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:05,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:44:05,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:05,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:05,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:05,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:44:05,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:44:05,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:44:05,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-15 02:44:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:05,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:05,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:05,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:44:05,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:05,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:44:05,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:05,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:05,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:44:05,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:44:05,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:44:05,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:44:05,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:44:05,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [242577683] [2020-10-15 02:44:05,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:44:05,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:44:05,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936158686] [2020-10-15 02:44:05,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:44:05,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:44:05,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:44:05,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:44:05,408 INFO L87 Difference]: Start difference. First operand 3878 states and 5523 transitions. Second operand 9 states. [2020-10-15 02:44:05,593 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:44:05,809 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-15 02:44:06,253 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 162 [2020-10-15 02:44:06,482 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:44:07,182 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:44:10,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:44:10,327 INFO L93 Difference]: Finished difference Result 12924 states and 18882 transitions. [2020-10-15 02:44:10,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:44:10,328 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 100 [2020-10-15 02:44:10,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:44:10,375 INFO L225 Difference]: With dead ends: 12924 [2020-10-15 02:44:10,375 INFO L226 Difference]: Without dead ends: 9525 [2020-10-15 02:44:10,390 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:44:10,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9525 states. [2020-10-15 02:44:10,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9525 to 8819. [2020-10-15 02:44:10,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8819 states. [2020-10-15 02:44:10,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8819 states to 8819 states and 12562 transitions. [2020-10-15 02:44:10,976 INFO L78 Accepts]: Start accepts. Automaton has 8819 states and 12562 transitions. Word has length 100 [2020-10-15 02:44:10,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:44:10,977 INFO L479 AbstractCegarLoop]: Abstraction has 8819 states and 12562 transitions. [2020-10-15 02:44:10,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:44:10,977 INFO L276 IsEmpty]: Start isEmpty. Operand 8819 states and 12562 transitions. [2020-10-15 02:44:10,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-15 02:44:10,992 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:44:10,992 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] [2020-10-15 02:44:10,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:44:10,993 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:44:10,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:44:10,993 INFO L82 PathProgramCache]: Analyzing trace with hash 787938034, now seen corresponding path program 1 times [2020-10-15 02:44:10,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:44:10,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629298045] [2020-10-15 02:44:10,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:44:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:11,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:11,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:11,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:11,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:11,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:15,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:16,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:16,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 02:44:16,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:44:16,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 02:44:16,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:16,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:16,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:44:16,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:44:16,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-15 02:44:16,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:44:16,217 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:44:16,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:44:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:16,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:16,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:16,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:44:16,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:16,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:44:16,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:16,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:16,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:44:16,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:16,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:44:16,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:16,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:44:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:16,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:16,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:16,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:44:16,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:16,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-15 02:44:16,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:16,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:16,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:44:16,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:16,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:44:16,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:16,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:44:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:16,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:16,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:16,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:44:16,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:16,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:44:16,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:16,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:16,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:16,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:16,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:44:16,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:16,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:44:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:16,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:16,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:16,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:44:16,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:16,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:44:16,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:16,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:44:16,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:16,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:44:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:16,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:16,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:16,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:44:16,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:16,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:44:16,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:16,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:16,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:16,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:16,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:44:16,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:16,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:44:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:16,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:16,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:16,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:44:16,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:16,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:44:16,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:16,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:16,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:16,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:44:16,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:44:16,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:16,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-15 02:44:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:16,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:16,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:16,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:44:16,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:16,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:44:16,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:16,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:16,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:44:16,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:44:16,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:44:16,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:16,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:44:16,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629298045] [2020-10-15 02:44:16,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:44:16,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:44:16,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109837930] [2020-10-15 02:44:16,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:44:16,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:44:16,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:44:16,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:44:16,501 INFO L87 Difference]: Start difference. First operand 8819 states and 12562 transitions. Second operand 9 states. [2020-10-15 02:44:16,706 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:44:16,923 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-15 02:44:17,165 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:44:17,509 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 162 [2020-10-15 02:44:18,441 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:44:20,441 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-15 02:44:21,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:44:21,956 INFO L93 Difference]: Finished difference Result 32098 states and 46208 transitions. [2020-10-15 02:44:21,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:44:21,957 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 101 [2020-10-15 02:44:21,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:44:22,090 INFO L225 Difference]: With dead ends: 32098 [2020-10-15 02:44:22,091 INFO L226 Difference]: Without dead ends: 23385 [2020-10-15 02:44:22,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:44:22,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23385 states. [2020-10-15 02:44:23,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23385 to 21862. [2020-10-15 02:44:23,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21862 states. [2020-10-15 02:44:23,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21862 states to 21862 states and 30842 transitions. [2020-10-15 02:44:23,481 INFO L78 Accepts]: Start accepts. Automaton has 21862 states and 30842 transitions. Word has length 101 [2020-10-15 02:44:23,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:44:23,482 INFO L479 AbstractCegarLoop]: Abstraction has 21862 states and 30842 transitions. [2020-10-15 02:44:23,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:44:23,482 INFO L276 IsEmpty]: Start isEmpty. Operand 21862 states and 30842 transitions. [2020-10-15 02:44:23,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-15 02:44:23,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:44:23,519 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] [2020-10-15 02:44:23,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:44:23,519 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:44:23,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:44:23,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1029253214, now seen corresponding path program 1 times [2020-10-15 02:44:23,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:44:23,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2008644005] [2020-10-15 02:44:23,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:44:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:23,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:23,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:23,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:23,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:23,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:28,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:28,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 02:44:28,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:44:28,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 02:44:28,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:28,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:28,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:44:28,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:44:28,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-15 02:44:28,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:28,733 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:44:28,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:44:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:28,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:28,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:28,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:44:28,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:28,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:44:28,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:28,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:28,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:44:28,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:28,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:44:28,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:28,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:44:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:28,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:28,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:28,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:28,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:28,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-15 02:44:28,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:44:28,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-15 02:44:28,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:28,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:28,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:44:28,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:44:28,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:44:28,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:29,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:44:29,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:29,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:29,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:29,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:44:29,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:29,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:44:29,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:29,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:29,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:29,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:29,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:44:29,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:29,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:44:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:29,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:29,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:29,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:44:29,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:29,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:44:29,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:29,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:29,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:29,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:29,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:44:29,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:29,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:44:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:29,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:29,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:29,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:44:29,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:29,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:44:29,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:29,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:29,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:29,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:29,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:44:29,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:29,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:44:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:29,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:29,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:29,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:44:29,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:29,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:44:29,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:29,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:29,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:29,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:44:29,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:44:29,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:29,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-15 02:44:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:29,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:29,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:29,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:44:29,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:29,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:44:29,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:29,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:29,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:44:29,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:44:29,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:44:29,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:29,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:44:29,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2008644005] [2020-10-15 02:44:29,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:44:29,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:44:29,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024885609] [2020-10-15 02:44:29,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:44:29,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:44:29,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:44:29,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:44:29,221 INFO L87 Difference]: Start difference. First operand 21862 states and 30842 transitions. Second operand 10 states. [2020-10-15 02:44:29,399 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:44:29,652 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:44:29,857 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-15 02:44:30,060 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:44:34,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:44:34,942 INFO L93 Difference]: Finished difference Result 48557 states and 70011 transitions. [2020-10-15 02:44:34,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:44:34,942 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 101 [2020-10-15 02:44:34,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:44:35,093 INFO L225 Difference]: With dead ends: 48557 [2020-10-15 02:44:35,093 INFO L226 Difference]: Without dead ends: 30186 [2020-10-15 02:44:35,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:44:35,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30186 states. [2020-10-15 02:44:37,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30186 to 27994. [2020-10-15 02:44:37,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27994 states. [2020-10-15 02:44:37,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27994 states to 27994 states and 39629 transitions. [2020-10-15 02:44:37,205 INFO L78 Accepts]: Start accepts. Automaton has 27994 states and 39629 transitions. Word has length 101 [2020-10-15 02:44:37,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:44:37,205 INFO L479 AbstractCegarLoop]: Abstraction has 27994 states and 39629 transitions. [2020-10-15 02:44:37,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:44:37,205 INFO L276 IsEmpty]: Start isEmpty. Operand 27994 states and 39629 transitions. [2020-10-15 02:44:37,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-15 02:44:37,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:44:37,241 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] [2020-10-15 02:44:37,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:44:37,241 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:44:37,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:44:37,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1182313655, now seen corresponding path program 1 times [2020-10-15 02:44:37,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:44:37,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1713639420] [2020-10-15 02:44:37,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:44:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:37,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:37,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:37,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:37,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:37,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:39,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:41,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:41,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-15 02:44:41,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:44:41,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4713 [2020-10-15 02:44:41,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:41,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:41,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:44:41,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-15 02:44:41,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-15 02:44:41,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:42,165 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:44:42,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:44:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:42,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:42,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:42,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:44:42,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:42,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:44:42,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:42,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:42,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:44:42,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:42,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:44:42,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:42,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:44:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:42,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:42,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:42,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:44:42,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:42,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-15 02:44:42,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:42,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:42,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:44:42,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:42,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:44:42,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:42,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:44:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:42,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:42,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:42,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:44:42,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:42,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:44:42,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:42,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:42,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:42,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:44:42,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:44:42,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:44:42,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:44:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:42,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:42,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:42,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:44:42,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:42,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:44:42,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:42,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:42,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:44:42,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:44:42,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:44:42,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:42,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:44:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:42,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:42,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:42,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:44:42,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:42,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:44:42,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:42,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:42,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:44:42,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:44:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:44:42,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:42,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:44:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:42,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:42,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:42,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:44:42,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:42,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:44:42,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:42,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:42,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:44:42,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:44:42,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:44:42,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:42,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-15 02:44:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:44:42,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:44:42,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:44:42,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:44:42,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:44:42,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:44:42,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:44:42,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:44:42,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:44:42,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:44:42,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:44:42,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:44:42,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:44:42,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1713639420] [2020-10-15 02:44:42,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:44:42,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:44:42,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271576439] [2020-10-15 02:44:42,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:44:42,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:44:42,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:44:42,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:44:42,547 INFO L87 Difference]: Start difference. First operand 27994 states and 39629 transitions. Second operand 13 states. [2020-10-15 02:44:42,751 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:44:43,256 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:44:43,442 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:44:44,215 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-15 02:44:44,548 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-15 02:44:45,191 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 162 [2020-10-15 02:44:45,544 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-15 02:44:45,995 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2020-10-15 02:44:46,285 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-15 02:44:47,026 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 161 [2020-10-15 02:44:49,208 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2020-10-15 02:44:49,357 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-15 02:44:50,476 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2020-10-15 02:44:50,704 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-15 02:44:52,230 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2020-10-15 02:44:53,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:44:53,155 INFO L93 Difference]: Finished difference Result 102860 states and 148197 transitions. [2020-10-15 02:44:53,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-15 02:44:53,155 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 102 [2020-10-15 02:44:53,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:44:53,527 INFO L225 Difference]: With dead ends: 102860 [2020-10-15 02:44:53,527 INFO L226 Difference]: Without dead ends: 79677 [2020-10-15 02:44:53,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=355, Invalid=1127, Unknown=0, NotChecked=0, Total=1482 [2020-10-15 02:44:53,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79677 states. [2020-10-15 02:44:59,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79677 to 72710. [2020-10-15 02:44:59,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72710 states. [2020-10-15 02:44:59,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72710 states to 72710 states and 104131 transitions. [2020-10-15 02:44:59,957 INFO L78 Accepts]: Start accepts. Automaton has 72710 states and 104131 transitions. Word has length 102 [2020-10-15 02:44:59,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:44:59,957 INFO L479 AbstractCegarLoop]: Abstraction has 72710 states and 104131 transitions. [2020-10-15 02:44:59,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:44:59,957 INFO L276 IsEmpty]: Start isEmpty. Operand 72710 states and 104131 transitions. [2020-10-15 02:45:00,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-15 02:45:00,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:45:00,005 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] [2020-10-15 02:45:00,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:45:00,005 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:45:00,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:45:00,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1874122805, now seen corresponding path program 1 times [2020-10-15 02:45:00,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:45:00,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988381766] [2020-10-15 02:45:00,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:45:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:00,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:00,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:00,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:00,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:00,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:02,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:02,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:05,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:05,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 02:45:05,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:45:05,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5114 [2020-10-15 02:45:05,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:05,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:05,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:45:05,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-15 02:45:05,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 02:45:05,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:05,323 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:45:05,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:45:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:05,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:05,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:05,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:45:05,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:05,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:45:05,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:05,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:05,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:05,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:05,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:05,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:05,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:45:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:05,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:05,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:05,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:45:05,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:05,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 02:45:05,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:05,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:05,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:45:05,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:05,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 02:45:05,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:05,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:45:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:05,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:05,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:05,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:45:05,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:05,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:45:05,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:05,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:05,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:05,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:05,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:45:05,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:05,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:45:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:05,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:05,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:05,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:05,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:05,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:45:05,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:05,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:05,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:45:05,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:45:05,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:45:05,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:05,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:45:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:05,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:05,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:05,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:45:05,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:05,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:45:05,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:05,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:05,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:05,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:05,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:45:05,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:05,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:45:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:05,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:05,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:05,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:45:05,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:05,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:45:05,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:05,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:05,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:05,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:05,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:45:05,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:05,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-15 02:45:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:05,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:05,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:05,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:05,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:05,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:45:05,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:05,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:05,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:05,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:45:05,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:45:05,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:05,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:45:05,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988381766] [2020-10-15 02:45:05,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:45:05,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:45:05,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860243687] [2020-10-15 02:45:05,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:45:05,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:45:05,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:45:05,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:45:05,575 INFO L87 Difference]: Start difference. First operand 72710 states and 104131 transitions. Second operand 10 states. [2020-10-15 02:45:05,759 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:45:06,164 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:45:08,686 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:45:08,869 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:45:18,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:45:18,591 INFO L93 Difference]: Finished difference Result 245523 states and 348604 transitions. [2020-10-15 02:45:18,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 02:45:18,591 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 103 [2020-10-15 02:45:18,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:45:19,283 INFO L225 Difference]: With dead ends: 245523 [2020-10-15 02:45:19,284 INFO L226 Difference]: Without dead ends: 178264 [2020-10-15 02:45:19,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=254, Invalid=802, Unknown=0, NotChecked=0, Total=1056 [2020-10-15 02:45:19,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178264 states. [2020-10-15 02:45:30,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178264 to 163587. [2020-10-15 02:45:30,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163587 states. [2020-10-15 02:45:30,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163587 states to 163587 states and 230149 transitions. [2020-10-15 02:45:30,497 INFO L78 Accepts]: Start accepts. Automaton has 163587 states and 230149 transitions. Word has length 103 [2020-10-15 02:45:30,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:45:30,498 INFO L479 AbstractCegarLoop]: Abstraction has 163587 states and 230149 transitions. [2020-10-15 02:45:30,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:45:30,498 INFO L276 IsEmpty]: Start isEmpty. Operand 163587 states and 230149 transitions. [2020-10-15 02:45:30,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-15 02:45:30,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:45:30,542 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] [2020-10-15 02:45:30,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:45:30,543 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:45:30,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:45:30,543 INFO L82 PathProgramCache]: Analyzing trace with hash -484971018, now seen corresponding path program 1 times [2020-10-15 02:45:30,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:45:30,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278088577] [2020-10-15 02:45:30,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:45:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:30,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:30,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:30,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:30,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:30,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:32,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:32,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:32,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:35,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:35,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:35,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 02:45:35,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 02:45:35,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 02:45:35,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:35,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:35,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:45:35,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:45:35,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-15 02:45:35,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:35,779 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:45:35,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:45:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:35,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:35,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:35,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:45:35,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:35,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:45:35,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:35,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:35,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:35,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:35,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:35,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:35,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:45:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:35,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:35,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:35,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:45:35,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:35,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 02:45:35,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:35,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:35,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:45:35,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:35,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:45:35,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:35,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:45:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:35,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:35,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:35,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:45:35,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:35,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:45:35,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:35,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:35,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:35,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:35,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:45:35,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:35,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:45:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:35,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:35,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:35,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:35,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:35,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:45:35,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:35,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:35,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:35,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:35,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:45:35,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:45:35,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:45:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:35,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:35,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:35,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:45:35,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:35,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:45:35,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:35,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:35,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:35,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:35,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:45:35,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:35,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:45:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:35,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:35,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:35,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:45:35,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:35,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:45:35,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:35,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:35,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:45:35,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:45:35,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:45:35,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:36,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-15 02:45:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:36,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:36,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:36,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:45:36,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:36,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:45:36,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:36,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:36,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:36,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:45:36,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:36,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:45:36,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:45:36,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278088577] [2020-10-15 02:45:36,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:45:36,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:45:36,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614538538] [2020-10-15 02:45:36,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:45:36,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:45:36,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:45:36,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:45:36,041 INFO L87 Difference]: Start difference. First operand 163587 states and 230149 transitions. Second operand 9 states. [2020-10-15 02:45:36,244 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:45:36,421 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:45:36,621 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:45:36,814 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-15 02:45:37,520 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:45:46,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:45:46,848 INFO L93 Difference]: Finished difference Result 346904 states and 486150 transitions. [2020-10-15 02:45:46,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:45:46,850 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 103 [2020-10-15 02:45:46,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:45:47,458 INFO L225 Difference]: With dead ends: 346904 [2020-10-15 02:45:47,458 INFO L226 Difference]: Without dead ends: 183530 [2020-10-15 02:45:47,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:45:47,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183530 states. [2020-10-15 02:45:59,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183530 to 167488. [2020-10-15 02:45:59,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167488 states. [2020-10-15 02:45:59,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167488 states to 167488 states and 234034 transitions. [2020-10-15 02:45:59,790 INFO L78 Accepts]: Start accepts. Automaton has 167488 states and 234034 transitions. Word has length 103 [2020-10-15 02:45:59,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:45:59,790 INFO L479 AbstractCegarLoop]: Abstraction has 167488 states and 234034 transitions. [2020-10-15 02:45:59,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:45:59,791 INFO L276 IsEmpty]: Start isEmpty. Operand 167488 states and 234034 transitions. [2020-10-15 02:45:59,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-15 02:45:59,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:45:59,845 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] [2020-10-15 02:45:59,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 02:45:59,845 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:45:59,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:45:59,846 INFO L82 PathProgramCache]: Analyzing trace with hash 387120280, now seen corresponding path program 1 times [2020-10-15 02:45:59,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:45:59,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1654714611] [2020-10-15 02:45:59,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:45:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:59,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:59,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:59,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:59,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:00,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:00,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:02,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:02,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:04,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:04,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 02:46:04,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:46:04,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 02:46:04,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:04,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:04,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:46:04,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:46:04,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-15 02:46:04,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:05,086 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:46:05,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:46:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:05,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:05,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:05,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:46:05,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:05,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:46:05,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:05,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:05,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:05,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:05,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:46:05,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:05,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:46:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:05,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:05,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:05,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:05,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:05,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-15 02:46:05,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:46:05,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 397 [2020-10-15 02:46:05,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:05,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:05,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:46:05,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:05,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-15 02:46:05,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:05,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 02:46:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:05,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:05,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:05,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:46:05,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:05,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:46:05,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:05,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:05,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:05,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:46:05,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:05,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-15 02:46:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:05,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:05,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:05,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:05,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:05,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:46:05,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:05,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:05,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:05,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:05,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:46:05,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:05,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-15 02:46:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:05,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:05,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:05,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:46:05,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:05,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:46:05,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:05,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:05,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:46:05,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:46:05,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 02:46:05,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:05,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:46:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:05,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:05,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:05,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:46:05,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:05,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:46:05,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:05,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:05,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:05,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:46:05,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:05,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:05,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-15 02:46:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:05,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:05,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:05,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:46:05,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:05,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:46:05,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:05,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:05,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:05,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:46:05,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:05,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:05,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:46:05,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1654714611] [2020-10-15 02:46:05,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:46:05,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:46:05,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681763937] [2020-10-15 02:46:05,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:46:05,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:46:05,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:46:05,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:46:05,778 INFO L87 Difference]: Start difference. First operand 167488 states and 234034 transitions. Second operand 14 states. [2020-10-15 02:46:06,173 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 159 [2020-10-15 02:46:06,379 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:46:07,318 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 161 [2020-10-15 02:46:07,470 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2020-10-15 02:46:07,836 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2020-10-15 02:46:08,007 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2020-10-15 02:46:08,190 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2020-10-15 02:46:08,377 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2020-10-15 02:46:08,896 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2020-10-15 02:46:12,094 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-15 02:46:13,900 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-15 02:46:14,212 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2020-10-15 02:46:14,495 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-10-15 02:46:14,833 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2020-10-15 02:46:14,969 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-15 02:46:15,419 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2020-10-15 02:46:15,726 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-15 02:46:16,076 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2020-10-15 02:46:20,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:46:20,382 INFO L93 Difference]: Finished difference Result 232196 states and 321622 transitions. [2020-10-15 02:46:20,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-15 02:46:20,383 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 103 [2020-10-15 02:46:20,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:46:20,877 INFO L225 Difference]: With dead ends: 232196 [2020-10-15 02:46:20,878 INFO L226 Difference]: Without dead ends: 209924 [2020-10-15 02:46:20,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=321, Invalid=939, Unknown=0, NotChecked=0, Total=1260 [2020-10-15 02:46:21,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209924 states.