/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_floodmax.4.4.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:23:37,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:23:37,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:23:37,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:23:37,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:23:37,080 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:23:37,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:23:37,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:23:37,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:23:37,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:23:37,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:23:37,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:23:37,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:23:37,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:23:37,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:23:37,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:23:37,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:23:37,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:23:37,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:23:37,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:23:37,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:23:37,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:23:37,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:23:37,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:23:37,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:23:37,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:23:37,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:23:37,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:23:37,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:23:37,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:23:37,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:23:37,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:23:37,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:23:37,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:23:37,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:23:37,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:23:37,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:23:37,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:23:37,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:23:37,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:23:37,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:23:37,110 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 02:23:37,132 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:23:37,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:23:37,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:23:37,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:23:37,134 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:23:37,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:23:37,134 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:23:37,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:23:37,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:23:37,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:23:37,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:23:37,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:23:37,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:23:37,136 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:23:37,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:23:37,136 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:23:37,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:23:37,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:23:37,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:23:37,137 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:23:37,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:23:37,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:23:37,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:23:37,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:23:37,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:23:37,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:23:37,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:23:37,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:23:37,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:23:37,139 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 02:23:37,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:23:37,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:23:37,455 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:23:37,456 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:23:37,457 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:23:37,458 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c [2020-10-15 02:23:37,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fef8962fe/a62cc6de95204cfaa883645b172e5114/FLAG5c1c24185 [2020-10-15 02:23:37,976 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:23:37,977 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c [2020-10-15 02:23:37,992 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fef8962fe/a62cc6de95204cfaa883645b172e5114/FLAG5c1c24185 [2020-10-15 02:23:38,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fef8962fe/a62cc6de95204cfaa883645b172e5114 [2020-10-15 02:23:38,336 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:23:38,338 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:23:38,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:23:38,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:23:38,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:23:38,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:23:38" (1/1) ... [2020-10-15 02:23:38,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20abf48c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:23:38, skipping insertion in model container [2020-10-15 02:23:38,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:23:38" (1/1) ... [2020-10-15 02:23:38,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:23:38,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:23:38,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:23:38,997 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:23:39,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:23:39,135 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:23:39,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:23:39 WrapperNode [2020-10-15 02:23:39,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:23:39,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:23:39,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:23:39,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:23:39,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:23:39" (1/1) ... [2020-10-15 02:23:39,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:23:39" (1/1) ... [2020-10-15 02:23:39,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:23:39" (1/1) ... [2020-10-15 02:23:39,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:23:39" (1/1) ... [2020-10-15 02:23:39,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:23:39" (1/1) ... [2020-10-15 02:23:39,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:23:39" (1/1) ... [2020-10-15 02:23:39,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:23:39" (1/1) ... [2020-10-15 02:23:39,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:23:39,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:23:39,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:23:39,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:23:39,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:23:39" (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 02:23:39,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:23:39,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:23:39,316 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:23:39,316 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:23:39,316 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:23:39,316 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:23:39,317 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-15 02:23:39,317 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:23:39,317 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:23:39,317 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:23:39,317 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:23:39,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:23:39,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:23:39,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 02:23:39,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:23:39,318 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:23:39,319 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:23:39,319 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:23:39,319 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:23:39,319 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:23:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:23:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:23:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:23:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 02:23:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:23:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:23:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:23:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:23:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:23:40,725 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:23:40,725 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:23:40,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:23:40 BoogieIcfgContainer [2020-10-15 02:23:40,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:23:40,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:23:40,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:23:40,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:23:40,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:23:38" (1/3) ... [2020-10-15 02:23:40,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16f95fb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:23:40, skipping insertion in model container [2020-10-15 02:23:40,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:23:39" (2/3) ... [2020-10-15 02:23:40,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16f95fb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:23:40, skipping insertion in model container [2020-10-15 02:23:40,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:23:40" (3/3) ... [2020-10-15 02:23:40,740 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.4.ufo.UNBOUNDED.pals.c [2020-10-15 02:23:40,751 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:23:40,759 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:23:40,772 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:23:40,801 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:23:40,802 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:23:40,802 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:23:40,802 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:23:40,802 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:23:40,802 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:23:40,802 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:23:40,802 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:23:40,831 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states. [2020-10-15 02:23:40,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-15 02:23:40,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:23:40,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:23:40,851 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:23:40,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:23:40,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1386901003, now seen corresponding path program 1 times [2020-10-15 02:23:40,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:23:40,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14718088] [2020-10-15 02:23:40,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:23:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:41,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:41,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:41,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-15 02:23:41,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:41,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 528 [2020-10-15 02:23:41,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:41,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:41,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:41,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-15 02:23:41,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:41,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:23:42,305 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:23:42,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:23:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:42,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:42,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:42,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:23:42,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:42,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:23:42,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:42,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:42,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:42,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:42,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:42,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:23:42,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:23:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:42,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:42,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:42,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-15 02:23:42,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:42,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-15 02:23:42,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:42,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:42,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:42,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:42,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:42,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:23:42,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:23:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:42,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:42,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:42,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:23:42,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:42,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:23:42,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:42,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:42,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:42,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:23:42,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:42,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:23:42,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:23:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:42,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:42,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:42,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:42,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:42,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:23:42,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:42,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:42,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:42,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:23:42,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:42,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:23:42,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-15 02:23:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:42,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:42,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:42,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:42,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:42,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:23:42,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:42,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:42,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:42,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:23:42,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:42,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:23:42,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:23:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:42,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:42,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:42,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:42,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:42,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:23:42,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:42,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:42,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:42,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:23:42,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:42,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:23:42,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:23:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:42,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:42,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:42,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:42,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:42,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:23:42,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:42,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:42,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:42,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:23:42,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:42,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:23:42,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-15 02:23:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:42,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:42,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:42,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:42,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:42,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:23:42,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:42,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:42,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:42,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:23:42,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:42,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:23:42,736 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 02:23:42,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14718088] [2020-10-15 02:23:42,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:23:42,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 02:23:42,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681511042] [2020-10-15 02:23:42,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 02:23:42,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:23:42,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 02:23:42,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 02:23:42,766 INFO L87 Difference]: Start difference. First operand 341 states. Second operand 7 states. [2020-10-15 02:23:45,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:23:45,163 INFO L93 Difference]: Finished difference Result 508 states and 855 transitions. [2020-10-15 02:23:45,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 02:23:45,165 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 104 [2020-10-15 02:23:45,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:23:45,210 INFO L225 Difference]: With dead ends: 508 [2020-10-15 02:23:45,211 INFO L226 Difference]: Without dead ends: 368 [2020-10-15 02:23:45,217 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:23:45,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-10-15 02:23:45,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 336. [2020-10-15 02:23:45,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-10-15 02:23:45,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 579 transitions. [2020-10-15 02:23:45,326 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 579 transitions. Word has length 104 [2020-10-15 02:23:45,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:23:45,326 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 579 transitions. [2020-10-15 02:23:45,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 02:23:45,327 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 579 transitions. [2020-10-15 02:23:45,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-15 02:23:45,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:23:45,332 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:23:45,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:23:45,333 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:23:45,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:23:45,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1810547725, now seen corresponding path program 1 times [2020-10-15 02:23:45,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:23:45,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347928780] [2020-10-15 02:23:45,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:23:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:45,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:46,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:46,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-15 02:23:46,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:46,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1223 [2020-10-15 02:23:46,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:46,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:46,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:23:46,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-15 02:23:46,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:23:46,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:23:47,263 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:23:47,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:23:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:47,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:47,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:47,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:23:47,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:47,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 02:23:47,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:47,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:47,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:47,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:47,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:47,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:23:47,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:23:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:47,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:47,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:47,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-15 02:23:47,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:47,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-10-15 02:23:47,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:47,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:47,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:23:47,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:23:47,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 02:23:47,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:23:47,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:23:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:47,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:47,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:47,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:23:47,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:47,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:23:47,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:47,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:47,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:23:47,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:23:47,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:23:47,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:23:47,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:23:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:47,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:47,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:47,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:47,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:47,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:23:47,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:47,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:47,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:47,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:23:47,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:47,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:23:47,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-15 02:23:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:47,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:47,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:47,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:47,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:47,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:23:47,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:47,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:47,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:47,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:23:47,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:47,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:23:47,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:23:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:47,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:47,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:47,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:47,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:47,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:23:47,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:47,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:47,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:47,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:23:47,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:47,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:23:48,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:23:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:48,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:48,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:48,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:48,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:48,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:23:48,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:48,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:48,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:48,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:23:48,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:48,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:23:48,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-15 02:23:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:48,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:48,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:48,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:23:48,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:23:48,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:23:48,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:48,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:48,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:23:48,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:23:48,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:23:48,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:23:48,096 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 02:23:48,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347928780] [2020-10-15 02:23:48,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:23:48,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:23:48,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182911330] [2020-10-15 02:23:48,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:23:48,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:23:48,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:23:48,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:23:48,102 INFO L87 Difference]: Start difference. First operand 336 states and 579 transitions. Second operand 13 states. [2020-10-15 02:23:50,493 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-15 02:23:50,885 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-15 02:23:51,377 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-15 02:23:51,733 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:23:54,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:23:54,522 INFO L93 Difference]: Finished difference Result 506 states and 847 transitions. [2020-10-15 02:23:54,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 02:23:54,523 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 104 [2020-10-15 02:23:54,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:23:54,528 INFO L225 Difference]: With dead ends: 506 [2020-10-15 02:23:54,528 INFO L226 Difference]: Without dead ends: 368 [2020-10-15 02:23:54,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-15 02:23:54,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-10-15 02:23:54,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 336. [2020-10-15 02:23:54,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-10-15 02:23:54,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 537 transitions. [2020-10-15 02:23:54,578 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 537 transitions. Word has length 104 [2020-10-15 02:23:54,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:23:54,579 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 537 transitions. [2020-10-15 02:23:54,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:23:54,579 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 537 transitions. [2020-10-15 02:23:54,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-15 02:23:54,583 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:23:54,583 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:23:54,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:23:54,584 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:23:54,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:23:54,584 INFO L82 PathProgramCache]: Analyzing trace with hash -348312971, now seen corresponding path program 1 times [2020-10-15 02:23:54,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:23:54,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [200117141] [2020-10-15 02:23:54,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:23:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:23:54,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:55,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:55,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:56,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:57,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:23:59,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:23:59,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-15 02:23:59,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:23:59,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 02:23:59,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:23:59,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:23:59,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:23:59,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-15 02:23:59,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-15 02:23:59,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:00,138 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:24:00,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:24:00,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:00,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:00,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:00,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:24:00,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:00,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:24:00,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:00,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:00,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:24:00,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:00,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:24:00,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:00,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:24:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:00,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:00,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:00,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:24:00,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:00,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-15 02:24:00,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:00,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:00,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:00,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:00,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:24:00,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:00,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:24:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:00,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:00,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:00,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:24:00,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:00,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:24:00,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:00,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:00,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:00,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:00,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:24:00,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:00,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-15 02:24:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:00,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:00,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:00,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:00,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:00,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:24:00,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:00,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:00,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:00,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:00,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:24:00,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:00,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:24:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:00,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:00,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:00,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:00,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:00,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:24:00,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:00,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:24:00,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:24:00,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:24:00,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:00,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-15 02:24:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:00,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:00,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:00,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:00,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:00,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:24:00,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:00,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:00,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:24:00,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:24:00,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:24:00,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:00,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:24:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:00,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:00,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:00,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:00,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:00,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:24:00,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:00,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:00,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:24:00,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:24:00,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:24:00,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:00,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-15 02:24:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:00,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:00,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:00,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:00,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:00,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:24:00,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:00,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:00,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:24:00,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:24:00,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:24:00,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:00,796 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 02:24:00,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [200117141] [2020-10-15 02:24:00,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:24:00,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:24:00,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901018215] [2020-10-15 02:24:00,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:24:00,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:24:00,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:24:00,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:24:00,800 INFO L87 Difference]: Start difference. First operand 336 states and 537 transitions. Second operand 10 states. [2020-10-15 02:24:01,182 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-15 02:24:05,555 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-15 02:24:06,013 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-15 02:24:06,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:24:06,515 INFO L93 Difference]: Finished difference Result 670 states and 1067 transitions. [2020-10-15 02:24:06,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:24:06,516 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 145 [2020-10-15 02:24:06,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:24:06,522 INFO L225 Difference]: With dead ends: 670 [2020-10-15 02:24:06,522 INFO L226 Difference]: Without dead ends: 538 [2020-10-15 02:24:06,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:24:06,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-10-15 02:24:06,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 468. [2020-10-15 02:24:06,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-10-15 02:24:06,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 750 transitions. [2020-10-15 02:24:06,580 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 750 transitions. Word has length 145 [2020-10-15 02:24:06,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:24:06,580 INFO L479 AbstractCegarLoop]: Abstraction has 468 states and 750 transitions. [2020-10-15 02:24:06,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:24:06,581 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 750 transitions. [2020-10-15 02:24:06,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-15 02:24:06,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:24:06,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:24:06,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:24:06,585 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:24:06,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:24:06,585 INFO L82 PathProgramCache]: Analyzing trace with hash 88200824, now seen corresponding path program 1 times [2020-10-15 02:24:06,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:24:06,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663423008] [2020-10-15 02:24:06,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:24:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:06,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:06,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:07,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:07,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:08,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:10,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:10,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:11,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:11,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-15 02:24:11,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:24:11,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 02:24:11,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:11,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:11,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:24:11,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:24:11,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-15 02:24:11,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:12,034 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:24:12,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:24:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:12,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:12,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:12,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:24:12,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:12,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:24:12,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:12,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:12,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:24:12,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:12,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:24:12,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:12,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:24:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:12,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:12,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:12,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:24:12,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:12,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-15 02:24:12,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:12,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:12,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:24:12,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:12,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:24:12,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:12,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:24:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:12,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:12,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:12,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:24:12,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:12,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:24:12,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:12,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:12,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:12,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:12,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:24:12,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:12,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-15 02:24:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:12,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:12,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:12,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:12,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:12,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:24:12,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:12,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:12,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:12,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:12,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:24:12,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:12,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:24:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:12,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:12,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:12,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:24:12,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:12,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:24:12,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:12,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:12,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:12,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:24:12,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:24:12,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:12,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-15 02:24:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:12,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:12,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:12,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:12,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:12,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:24:12,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:12,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:12,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:24:12,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:24:12,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:24:12,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:12,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-15 02:24:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:12,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:12,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:12,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:12,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:12,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:24:12,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:12,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:12,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:24:12,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:24:12,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:24:12,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:12,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-15 02:24:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:12,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:12,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:12,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:12,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:12,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:24:12,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:12,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:12,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:24:12,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:24:12,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:24:12,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:24:12,618 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 02:24:12,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1663423008] [2020-10-15 02:24:12,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:24:12,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:24:12,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874760747] [2020-10-15 02:24:12,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:24:12,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:24:12,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:24:12,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:24:12,621 INFO L87 Difference]: Start difference. First operand 468 states and 750 transitions. Second operand 10 states. [2020-10-15 02:24:12,990 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-15 02:24:13,333 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-15 02:24:13,824 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-15 02:24:14,170 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:24:16,966 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:24:17,957 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:24:20,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:24:20,459 INFO L93 Difference]: Finished difference Result 1470 states and 2353 transitions. [2020-10-15 02:24:20,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:24:20,460 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2020-10-15 02:24:20,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:24:20,467 INFO L225 Difference]: With dead ends: 1470 [2020-10-15 02:24:20,468 INFO L226 Difference]: Without dead ends: 1032 [2020-10-15 02:24:20,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:24:20,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2020-10-15 02:24:20,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 911. [2020-10-15 02:24:20,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 911 states. [2020-10-15 02:24:20,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1442 transitions. [2020-10-15 02:24:20,559 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1442 transitions. Word has length 148 [2020-10-15 02:24:20,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:24:20,559 INFO L479 AbstractCegarLoop]: Abstraction has 911 states and 1442 transitions. [2020-10-15 02:24:20,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:24:20,560 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1442 transitions. [2020-10-15 02:24:20,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-15 02:24:20,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:24:20,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:24:20,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:24:20,563 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:24:20,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:24:20,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1459146557, now seen corresponding path program 1 times [2020-10-15 02:24:20,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:24:20,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [30254509] [2020-10-15 02:24:20,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:24:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:20,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:20,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:20,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:21,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:22,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:23,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:25,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:25,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-15 02:24:25,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:24:25,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 02:24:25,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:25,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:25,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:24:25,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:24:25,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-15 02:24:25,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:25,968 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:24:25,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:24:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:25,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:25,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:25,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:24:25,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:25,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:24:25,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:26,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:26,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:24:26,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:26,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:24:26,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:24:26,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:24:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:26,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:26,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:26,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:24:26,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:26,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-15 02:24:26,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:26,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:26,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:24:26,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:26,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:24:26,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:26,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:24:26,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:26,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:26,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:26,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:24:26,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:26,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:24:26,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:26,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:26,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:26,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:26,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:24:26,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:26,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-15 02:24:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:26,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:26,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:26,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:26,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:26,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:24:26,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:26,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:26,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:26,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:26,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:24:26,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:26,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:24:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:26,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:26,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:26,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:24:26,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:26,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:24:26,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:26,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:26,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:26,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:24:26,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:24:26,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:26,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-15 02:24:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:26,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:26,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:26,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:26,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:26,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:24:26,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:26,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:26,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:24:26,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:24:26,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:24:26,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:24:26,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-15 02:24:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:26,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:26,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:26,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:26,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:26,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:24:26,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:26,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:26,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:24:26,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:24:26,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:24:26,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:26,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-15 02:24:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:26,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:26,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:26,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:26,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:26,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:24:26,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:26,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:26,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:24:26,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:24:26,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:24:26,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:27,051 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 02:24:27,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [30254509] [2020-10-15 02:24:27,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:24:27,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:24:27,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110300279] [2020-10-15 02:24:27,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:24:27,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:24:27,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:24:27,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:24:27,056 INFO L87 Difference]: Start difference. First operand 911 states and 1442 transitions. Second operand 10 states. [2020-10-15 02:24:27,601 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-15 02:24:27,986 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2020-10-15 02:24:28,526 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-15 02:24:29,692 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 249 [2020-10-15 02:24:33,409 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:24:33,744 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:24:38,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:24:38,304 INFO L93 Difference]: Finished difference Result 3481 states and 5492 transitions. [2020-10-15 02:24:38,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:24:38,306 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2020-10-15 02:24:38,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:24:38,319 INFO L225 Difference]: With dead ends: 3481 [2020-10-15 02:24:38,320 INFO L226 Difference]: Without dead ends: 2647 [2020-10-15 02:24:38,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:24:38,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2647 states. [2020-10-15 02:24:38,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2647 to 2374. [2020-10-15 02:24:38,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2374 states. [2020-10-15 02:24:38,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2374 states to 2374 states and 3730 transitions. [2020-10-15 02:24:38,517 INFO L78 Accepts]: Start accepts. Automaton has 2374 states and 3730 transitions. Word has length 150 [2020-10-15 02:24:38,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:24:38,518 INFO L479 AbstractCegarLoop]: Abstraction has 2374 states and 3730 transitions. [2020-10-15 02:24:38,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:24:38,518 INFO L276 IsEmpty]: Start isEmpty. Operand 2374 states and 3730 transitions. [2020-10-15 02:24:38,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-15 02:24:38,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:24:38,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:24:38,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:24:38,526 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:24:38,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:24:38,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1231194335, now seen corresponding path program 1 times [2020-10-15 02:24:38,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:24:38,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1575441820] [2020-10-15 02:24:38,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:24:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:38,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:38,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:38,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:38,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:39,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:40,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:43,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:43,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-15 02:24:43,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:24:43,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 02:24:43,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:43,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:43,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:24:43,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:24:43,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-15 02:24:43,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:44,020 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:24:44,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:24:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:44,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:44,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:44,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:24:44,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:44,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:24:44,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:44,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:44,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:24:44,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:44,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:24:44,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:44,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:24:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:44,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:44,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:44,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:24:44,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:44,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-15 02:24:44,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:44,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:44,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:24:44,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:44,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:24:44,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:44,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:24:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:44,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:44,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:44,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:24:44,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:44,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:24:44,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:44,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:44,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:44,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:44,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:24:44,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:44,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-15 02:24:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:44,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:44,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:44,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:44,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:44,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:24:44,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:44,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:44,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:44,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:24:44,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:24:44,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:44,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:24:44,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:44,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:44,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:44,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:24:44,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:44,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:24:44,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:44,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:44,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:24:44,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:24:44,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:24:44,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:44,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-15 02:24:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:44,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:44,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:44,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:44,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:44,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:24:44,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:44,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:44,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:24:44,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:24:44,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:24:44,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:44,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-15 02:24:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:44,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:44,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:44,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:44,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:44,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:24:44,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:44,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:44,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:24:44,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:24:44,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:24:44,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:24:44,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-15 02:24:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:44,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:44,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:44,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:24:44,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:24:44,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:24:44,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:44,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:44,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:24:44,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:24:44,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:24:44,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:24:44,828 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 02:24:44,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1575441820] [2020-10-15 02:24:44,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:24:44,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:24:44,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740079736] [2020-10-15 02:24:44,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:24:44,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:24:44,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:24:44,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:24:44,834 INFO L87 Difference]: Start difference. First operand 2374 states and 3730 transitions. Second operand 10 states. [2020-10-15 02:24:45,426 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-15 02:24:45,882 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-15 02:24:46,270 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-15 02:24:46,633 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:24:50,307 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:24:50,817 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:24:54,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:24:54,393 INFO L93 Difference]: Finished difference Result 7486 states and 11754 transitions. [2020-10-15 02:24:54,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:24:54,393 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2020-10-15 02:24:54,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:24:54,420 INFO L225 Difference]: With dead ends: 7486 [2020-10-15 02:24:54,420 INFO L226 Difference]: Without dead ends: 5215 [2020-10-15 02:24:54,427 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:24:54,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5215 states. [2020-10-15 02:24:54,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5215 to 4725. [2020-10-15 02:24:54,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4725 states. [2020-10-15 02:24:54,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4725 states to 4725 states and 7308 transitions. [2020-10-15 02:24:54,853 INFO L78 Accepts]: Start accepts. Automaton has 4725 states and 7308 transitions. Word has length 150 [2020-10-15 02:24:54,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:24:54,856 INFO L479 AbstractCegarLoop]: Abstraction has 4725 states and 7308 transitions. [2020-10-15 02:24:54,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:24:54,856 INFO L276 IsEmpty]: Start isEmpty. Operand 4725 states and 7308 transitions. [2020-10-15 02:24:54,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-15 02:24:54,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:24:54,874 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:24:54,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:24:54,875 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:24:54,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:24:54,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1101542034, now seen corresponding path program 1 times [2020-10-15 02:24:54,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:24:54,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595123328] [2020-10-15 02:24:54,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:24:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:24:55,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:55,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:55,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:55,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:56,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:56,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:24:59,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:24:59,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-15 02:24:59,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:24:59,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:24:59,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:24:59,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:24:59,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:24:59,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:24:59,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-15 02:24:59,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:00,357 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:25:00,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:25:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:00,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:00,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:00,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:25:00,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:00,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:25:00,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:00,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:00,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:00,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:00,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:00,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:00,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:25:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:00,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:00,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:00,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:25:00,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:00,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-15 02:25:00,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:00,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:00,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:25:00,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:00,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:25:00,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:00,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:25:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:00,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:00,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:00,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:25:00,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:00,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:25:00,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:00,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:00,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:25:00,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:00,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:25:00,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:00,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-15 02:25:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:00,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:00,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:00,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:00,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:00,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:25:00,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:00,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:00,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:25:00,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:00,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:25:00,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:00,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:25:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:00,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:00,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:00,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:25:00,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:00,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:25:00,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:00,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:00,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:25:00,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:25:00,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:25:00,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:00,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:25:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:00,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:00,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:00,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:00,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:00,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:25:00,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:00,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:00,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:00,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:00,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:00,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:00,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-15 02:25:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:00,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:00,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:00,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:00,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:00,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:25:00,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:00,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:00,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:00,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:00,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:00,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:25:00,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-15 02:25:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:00,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:00,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:00,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:00,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:00,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:25:00,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:00,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:00,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:00,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:00,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:00,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:01,045 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 02:25:01,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595123328] [2020-10-15 02:25:01,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:25:01,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:25:01,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661168049] [2020-10-15 02:25:01,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:25:01,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:25:01,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:25:01,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:25:01,047 INFO L87 Difference]: Start difference. First operand 4725 states and 7308 transitions. Second operand 10 states. [2020-10-15 02:25:01,411 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-15 02:25:01,826 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:25:02,287 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-15 02:25:03,014 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 246 [2020-10-15 02:25:08,181 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:25:08,535 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:25:09,117 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:25:09,512 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:25:10,938 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:25:11,088 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:25:11,875 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:25:12,072 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:25:13,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:25:13,617 INFO L93 Difference]: Finished difference Result 17421 states and 26785 transitions. [2020-10-15 02:25:13,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:25:13,618 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 151 [2020-10-15 02:25:13,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:25:13,675 INFO L225 Difference]: With dead ends: 17421 [2020-10-15 02:25:13,675 INFO L226 Difference]: Without dead ends: 13115 [2020-10-15 02:25:13,691 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:25:13,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13115 states. [2020-10-15 02:25:14,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13115 to 12069. [2020-10-15 02:25:14,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12069 states. [2020-10-15 02:25:14,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12069 states to 12069 states and 18394 transitions. [2020-10-15 02:25:14,685 INFO L78 Accepts]: Start accepts. Automaton has 12069 states and 18394 transitions. Word has length 151 [2020-10-15 02:25:14,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:25:14,685 INFO L479 AbstractCegarLoop]: Abstraction has 12069 states and 18394 transitions. [2020-10-15 02:25:14,686 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:25:14,686 INFO L276 IsEmpty]: Start isEmpty. Operand 12069 states and 18394 transitions. [2020-10-15 02:25:14,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-15 02:25:14,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:25:14,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:25:14,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:25:14,715 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:25:14,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:25:14,716 INFO L82 PathProgramCache]: Analyzing trace with hash -317001342, now seen corresponding path program 1 times [2020-10-15 02:25:14,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:25:14,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500825489] [2020-10-15 02:25:14,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:25:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:14,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:14,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:14,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:15,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:15,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:19,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:19,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-15 02:25:19,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:25:19,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:25:19,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:19,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:19,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:25:19,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:25:19,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-15 02:25:19,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:20,122 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:25:20,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:25:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:20,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:20,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:20,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:25:20,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:20,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:25:20,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:20,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:20,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:20,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:20,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:20,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:20,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:25:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:20,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:20,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:20,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:25:20,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:20,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-15 02:25:20,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:20,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:20,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:25:20,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:20,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:25:20,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:20,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:25:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:20,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:20,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:20,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:25:20,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:20,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:25:20,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:20,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:20,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:25:20,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:20,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:25:20,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:20,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-15 02:25:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:20,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:20,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:20,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:20,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:20,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:25:20,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:20,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:20,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:25:20,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:20,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:25:20,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:20,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:25:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:20,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:20,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:20,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:25:20,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:20,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:25:20,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:20,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:20,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:25:20,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:20,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:25:20,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:20,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-15 02:25:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:20,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:20,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:20,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:20,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:20,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:25:20,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:20,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:20,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:20,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:20,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:20,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:20,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-15 02:25:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:20,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:20,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:20,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:20,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:20,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:25:20,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:20,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:20,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:20,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:20,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:20,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:20,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-15 02:25:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:20,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:20,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:20,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:20,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:20,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:25:20,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:20,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:20,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:20,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:20,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:20,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:20,616 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 02:25:20,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500825489] [2020-10-15 02:25:20,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:25:20,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:25:20,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708432229] [2020-10-15 02:25:20,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:25:20,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:25:20,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:25:20,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:25:20,618 INFO L87 Difference]: Start difference. First operand 12069 states and 18394 transitions. Second operand 10 states. [2020-10-15 02:25:21,008 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-15 02:25:21,375 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2020-10-15 02:25:21,940 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-15 02:25:22,678 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 249 [2020-10-15 02:25:28,267 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:25:28,607 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:25:29,686 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:25:30,440 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:25:31,071 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:25:31,951 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:25:34,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:25:34,340 INFO L93 Difference]: Finished difference Result 48255 states and 73364 transitions. [2020-10-15 02:25:34,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:25:34,341 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 152 [2020-10-15 02:25:34,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:25:34,469 INFO L225 Difference]: With dead ends: 48255 [2020-10-15 02:25:34,469 INFO L226 Difference]: Without dead ends: 36425 [2020-10-15 02:25:34,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:25:34,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36425 states. [2020-10-15 02:25:37,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36425 to 33689. [2020-10-15 02:25:37,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33689 states. [2020-10-15 02:25:38,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33689 states to 33689 states and 50916 transitions. [2020-10-15 02:25:38,066 INFO L78 Accepts]: Start accepts. Automaton has 33689 states and 50916 transitions. Word has length 152 [2020-10-15 02:25:38,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:25:38,067 INFO L479 AbstractCegarLoop]: Abstraction has 33689 states and 50916 transitions. [2020-10-15 02:25:38,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:25:38,067 INFO L276 IsEmpty]: Start isEmpty. Operand 33689 states and 50916 transitions. [2020-10-15 02:25:38,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-15 02:25:38,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:25:38,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:25:38,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:25:38,136 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:25:38,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:25:38,136 INFO L82 PathProgramCache]: Analyzing trace with hash -155338405, now seen corresponding path program 1 times [2020-10-15 02:25:38,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:25:38,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1200275934] [2020-10-15 02:25:38,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:25:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:38,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:38,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:38,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:39,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:39,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:39,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:39,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:42,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:43,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:43,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-15 02:25:43,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:25:43,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 02:25:43,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:43,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:43,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:25:43,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:25:43,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-15 02:25:43,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:43,730 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:25:43,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:25:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:43,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:43,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:43,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:25:43,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:43,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:25:43,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:43,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:43,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:43,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:43,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:43,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:43,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:25:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:43,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:43,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:43,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:25:43,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:43,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-15 02:25:43,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:43,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:43,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:25:43,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:43,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 02:25:43,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:43,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:25:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:43,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:43,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:43,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:25:43,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:43,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:25:43,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:43,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:43,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:25:43,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:43,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:25:43,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:43,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-15 02:25:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:43,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:43,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:43,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:43,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:43,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:25:43,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:43,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:43,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:25:43,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:25:43,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:25:43,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:44,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:25:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:44,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:44,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:44,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:25:44,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:44,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:25:44,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:44,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:44,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:25:44,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:25:44,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:25:44,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:44,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-15 02:25:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:44,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:44,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:44,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:44,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:44,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:25:44,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:44,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:44,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:44,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-15 02:25:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:44,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:44,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:44,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:44,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:44,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:25:44,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:44,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:44,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:44,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:44,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:44,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:44,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-15 02:25:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:25:44,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:25:44,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:25:44,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:25:44,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:25:44,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:25:44,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:25:44,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:25:44,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:25:44,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:25:44,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:25:44,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:25:44,176 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 02:25:44,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1200275934] [2020-10-15 02:25:44,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:25:44,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:25:44,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136553368] [2020-10-15 02:25:44,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:25:44,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:25:44,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:25:44,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:25:44,178 INFO L87 Difference]: Start difference. First operand 33689 states and 50916 transitions. Second operand 10 states. [2020-10-15 02:25:44,539 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-15 02:25:44,861 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-15 02:25:45,207 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-15 02:25:45,555 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:25:50,589 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:25:50,869 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:25:51,114 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:25:51,651 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:25:51,985 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:25:53,069 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:25:53,281 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:25:53,842 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-15 02:25:54,191 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-15 02:25:56,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:25:56,246 INFO L93 Difference]: Finished difference Result 99773 states and 150466 transitions. [2020-10-15 02:25:56,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:25:56,247 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 152 [2020-10-15 02:25:56,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:25:56,473 INFO L225 Difference]: With dead ends: 99773 [2020-10-15 02:25:56,473 INFO L226 Difference]: Without dead ends: 66228 [2020-10-15 02:25:56,566 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:25:56,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66228 states. [2020-10-15 02:26:02,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66228 to 62382. [2020-10-15 02:26:02,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62382 states. [2020-10-15 02:26:02,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62382 states to 62382 states and 92612 transitions. [2020-10-15 02:26:02,205 INFO L78 Accepts]: Start accepts. Automaton has 62382 states and 92612 transitions. Word has length 152 [2020-10-15 02:26:02,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:26:02,206 INFO L479 AbstractCegarLoop]: Abstraction has 62382 states and 92612 transitions. [2020-10-15 02:26:02,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:26:02,206 INFO L276 IsEmpty]: Start isEmpty. Operand 62382 states and 92612 transitions. [2020-10-15 02:26:02,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-15 02:26:02,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:26:02,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:26:02,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:26:02,272 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:26:02,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:26:02,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1030020838, now seen corresponding path program 1 times [2020-10-15 02:26:02,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:26:02,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257365633] [2020-10-15 02:26:02,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:26:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:02,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:02,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:02,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:03,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:03,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:03,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:07,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:07,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:07,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-15 02:26:07,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:26:07,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-15 02:26:07,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:07,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:07,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:26:07,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:26:07,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-15 02:26:07,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:07,721 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:26:07,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:26:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:07,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:07,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:07,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:26:07,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:07,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 02:26:07,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:07,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:07,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:26:07,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:07,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:26:07,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:07,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:26:07,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:07,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:07,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:07,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:26:07,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:07,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-15 02:26:07,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:07,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:07,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:26:07,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:07,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-15 02:26:07,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:07,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:26:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:07,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:07,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:07,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:26:07,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:07,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:26:07,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:07,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:07,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:26:07,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:07,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:26:07,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:07,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-15 02:26:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:07,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:07,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:07,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:07,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:07,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:26:07,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:07,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:07,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:26:07,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:07,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:26:07,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:08,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:26:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:08,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:08,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:08,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 02:26:08,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:08,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 02:26:08,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:08,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:08,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:26:08,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:26:08,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 02:26:08,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:08,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-15 02:26:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:08,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:08,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:08,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:08,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:08,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:26:08,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:08,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:08,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:08,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:08,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:08,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:08,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-15 02:26:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:08,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:08,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:08,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:08,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:08,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:26:08,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:08,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:08,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:08,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:08,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:08,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:08,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-15 02:26:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:08,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:08,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:08,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:08,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:08,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:26:08,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:08,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:08,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:08,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:08,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:08,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:08,260 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 02:26:08,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257365633] [2020-10-15 02:26:08,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:26:08,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-15 02:26:08,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110740546] [2020-10-15 02:26:08,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:26:08,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:26:08,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:26:08,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:26:08,263 INFO L87 Difference]: Start difference. First operand 62382 states and 92612 transitions. Second operand 15 states. [2020-10-15 02:26:08,649 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:26:08,984 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-15 02:26:12,754 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-15 02:26:13,710 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-15 02:26:13,878 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-15 02:26:15,675 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:26:15,888 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-15 02:26:16,195 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-15 02:26:16,844 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-15 02:26:17,329 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-15 02:26:18,650 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-15 02:26:19,205 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:26:19,462 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-15 02:26:19,649 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:26:19,940 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:26:20,098 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-15 02:26:20,672 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-15 02:26:21,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:26:21,195 INFO L93 Difference]: Finished difference Result 97634 states and 144801 transitions. [2020-10-15 02:26:21,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-15 02:26:21,196 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 153 [2020-10-15 02:26:21,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:26:21,435 INFO L225 Difference]: With dead ends: 97634 [2020-10-15 02:26:21,435 INFO L226 Difference]: Without dead ends: 88410 [2020-10-15 02:26:21,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=293, Invalid=829, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 02:26:21,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88410 states. [2020-10-15 02:26:25,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88410 to 67708. [2020-10-15 02:26:25,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67708 states. [2020-10-15 02:26:25,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67708 states to 67708 states and 100142 transitions. [2020-10-15 02:26:25,630 INFO L78 Accepts]: Start accepts. Automaton has 67708 states and 100142 transitions. Word has length 153 [2020-10-15 02:26:25,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:26:25,630 INFO L479 AbstractCegarLoop]: Abstraction has 67708 states and 100142 transitions. [2020-10-15 02:26:25,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:26:25,630 INFO L276 IsEmpty]: Start isEmpty. Operand 67708 states and 100142 transitions. [2020-10-15 02:26:25,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-15 02:26:25,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:26:25,711 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:26:25,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:26:25,712 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:26:25,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:26:25,712 INFO L82 PathProgramCache]: Analyzing trace with hash 957634280, now seen corresponding path program 1 times [2020-10-15 02:26:25,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:26:25,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1750453830] [2020-10-15 02:26:25,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:26:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:25,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:25,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:25,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:26,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:26,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:26,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:30,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:30,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:30,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-15 02:26:30,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:26:30,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-15 02:26:30,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:30,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:26:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:26:30,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-15 02:26:30,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:31,220 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:26:31,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:26:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:31,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:31,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:31,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:26:31,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:31,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 02:26:31,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:31,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:31,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:26:31,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:31,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:26:31,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:31,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:26:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:31,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:31,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:31,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:26:31,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:31,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-15 02:26:31,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:31,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:31,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:26:31,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:31,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-15 02:26:31,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:31,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:26:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:31,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:31,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:31,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:26:31,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:31,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:26:31,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:31,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:31,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:26:31,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:31,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:26:31,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:31,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-15 02:26:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:31,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:31,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:31,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:31,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:31,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:26:31,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:31,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:31,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:26:31,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:31,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:26:31,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:31,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:26:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:31,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:31,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:31,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 02:26:31,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:31,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:26:31,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:31,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:31,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:26:31,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:26:31,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 02:26:31,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:31,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-15 02:26:31,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:31,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:31,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:31,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:31,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:31,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:26:31,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:31,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:31,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:31,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:31,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:31,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:31,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-15 02:26:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:31,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:31,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:31,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:31,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:31,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:26:31,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:31,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:31,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:31,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:31,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:31,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:31,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-15 02:26:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:31,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:31,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:31,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:31,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:31,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:26:31,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:31,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:31,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:31,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:31,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:31,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:31,736 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 02:26:31,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1750453830] [2020-10-15 02:26:31,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:26:31,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-15 02:26:31,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395431183] [2020-10-15 02:26:31,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:26:31,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:26:31,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:26:31,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:26:31,738 INFO L87 Difference]: Start difference. First operand 67708 states and 100142 transitions. Second operand 15 states. [2020-10-15 02:26:33,095 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 02:26:33,459 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-15 02:26:37,313 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-15 02:26:38,324 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-15 02:26:38,494 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-15 02:26:39,038 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-15 02:26:39,291 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-15 02:26:39,610 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 129 [2020-10-15 02:26:39,895 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 125 [2020-10-15 02:26:40,390 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-15 02:26:40,839 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-15 02:26:42,063 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-15 02:26:42,609 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-15 02:26:42,959 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-15 02:26:43,183 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-15 02:26:43,324 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-15 02:26:43,968 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-15 02:26:44,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:26:44,421 INFO L93 Difference]: Finished difference Result 96684 states and 143265 transitions. [2020-10-15 02:26:44,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-15 02:26:44,422 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 153 [2020-10-15 02:26:44,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:26:44,688 INFO L225 Difference]: With dead ends: 96684 [2020-10-15 02:26:44,688 INFO L226 Difference]: Without dead ends: 87226 [2020-10-15 02:26:44,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=299, Invalid=823, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 02:26:44,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87226 states. [2020-10-15 02:26:49,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87226 to 67046. [2020-10-15 02:26:49,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67046 states. [2020-10-15 02:26:49,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67046 states to 67046 states and 98976 transitions. [2020-10-15 02:26:49,616 INFO L78 Accepts]: Start accepts. Automaton has 67046 states and 98976 transitions. Word has length 153 [2020-10-15 02:26:49,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:26:49,616 INFO L479 AbstractCegarLoop]: Abstraction has 67046 states and 98976 transitions. [2020-10-15 02:26:49,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:26:49,616 INFO L276 IsEmpty]: Start isEmpty. Operand 67046 states and 98976 transitions. [2020-10-15 02:26:49,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-15 02:26:49,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:26:49,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:26:49,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:26:49,692 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:26:49,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:26:49,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1659234154, now seen corresponding path program 1 times [2020-10-15 02:26:49,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:26:49,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1420633599] [2020-10-15 02:26:49,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:26:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:49,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:49,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:50,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:50,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:50,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:50,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:54,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:54,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-15 02:26:54,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:26:54,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 02:26:54,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:54,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:54,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:26:54,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:26:54,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-15 02:26:54,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:55,115 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 02:26:55,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:26:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:55,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:55,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:55,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:26:55,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:55,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:26:55,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:55,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:55,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:26:55,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:55,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:26:55,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:55,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:26:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:55,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:55,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:55,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:26:55,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:55,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-15 02:26:55,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:55,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:55,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:26:55,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:55,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-15 02:26:55,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:55,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-15 02:26:55,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:55,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:55,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:55,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:26:55,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:55,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:26:55,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:55,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:55,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:26:55,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:55,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:26:55,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:55,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-15 02:26:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:55,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:55,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:55,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:55,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:55,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:26:55,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:55,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:55,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:26:55,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:55,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:26:55,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:55,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-15 02:26:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:55,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:55,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:55,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 02:26:55,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:55,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:26:55,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:55,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:55,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:26:55,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:26:55,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 02:26:55,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:55,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-15 02:26:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:55,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:55,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:55,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:55,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:55,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:26:55,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:55,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:55,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:55,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:55,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:55,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:55,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-15 02:26:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:55,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:55,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:55,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:55,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:55,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:26:55,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:55,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:55,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:55,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-15 02:26:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:55,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:55,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:55,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:55,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:55,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:26:55,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:55,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:55,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:55,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:55,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:55,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:56,920 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 02:26:56,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1420633599] [2020-10-15 02:26:56,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:26:56,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-15 02:26:56,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293516118] [2020-10-15 02:26:56,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:26:56,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:26:56,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:26:56,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:26:56,923 INFO L87 Difference]: Start difference. First operand 67046 states and 98976 transitions. Second operand 15 states. [2020-10-15 02:26:57,675 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 244 [2020-10-15 02:26:58,034 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-15 02:27:01,949 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-15 02:27:03,263 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 246 [2020-10-15 02:27:03,553 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 119 [2020-10-15 02:27:04,320 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 125 [2020-10-15 02:27:04,826 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 126 [2020-10-15 02:27:05,151 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2020-10-15 02:27:05,757 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 119 [2020-10-15 02:27:06,407 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 119 [2020-10-15 02:27:08,171 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 117