/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 --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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:07:36,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:07:36,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:07:36,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:07:36,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:07:36,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:07:36,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:07:36,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:07:36,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:07:36,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:07:36,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:07:36,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:07:36,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:07:36,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:07:36,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:07:36,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:07:36,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:07:36,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:07:36,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:07:36,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:07:36,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:07:36,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:07:36,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:07:36,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:07:36,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:07:36,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:07:36,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:07:36,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:07:36,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:07:36,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:07:36,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:07:36,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:07:36,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:07:36,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:07:36,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:07:36,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:07:36,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:07:36,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:07:36,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:07:36,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:07:36,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:07:36,112 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 11:07:36,138 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:07:36,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:07:36,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:07:36,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:07:36,140 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:07:36,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:07:36,140 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:07:36,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:07:36,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:07:36,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:07:36,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:07:36,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:07:36,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:07:36,141 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:07:36,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:07:36,142 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:07:36,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:07:36,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:07:36,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:07:36,143 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:07:36,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:07:36,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:07:36,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:07:36,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:07:36,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:07:36,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:07:36,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:07:36,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:07:36,144 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:07:36,145 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.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;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:07:36,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:07:36,621 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:07:36,627 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:07:36,629 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:07:36,630 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:07:36,632 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-09-21 11:07:36,708 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b3fb1bf28/3f40e90685a3417fbfb883757381eded/FLAG8819e737a [2020-09-21 11:07:37,311 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:07:37,312 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-09-21 11:07:37,338 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b3fb1bf28/3f40e90685a3417fbfb883757381eded/FLAG8819e737a [2020-09-21 11:07:37,619 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b3fb1bf28/3f40e90685a3417fbfb883757381eded [2020-09-21 11:07:37,631 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:07:37,637 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:07:37,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:07:37,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:07:37,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:07:37,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:07:37" (1/1) ... [2020-09-21 11:07:37,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@202a755b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:37, skipping insertion in model container [2020-09-21 11:07:37,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:07:37" (1/1) ... [2020-09-21 11:07:37,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:07:37,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:07:38,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:07:38,237 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:07:38,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:07:38,347 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:07:38,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:38 WrapperNode [2020-09-21 11:07:38,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:07:38,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:07:38,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:07:38,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:07:38,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:38" (1/1) ... [2020-09-21 11:07:38,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:38" (1/1) ... [2020-09-21 11:07:38,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:38" (1/1) ... [2020-09-21 11:07:38,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:38" (1/1) ... [2020-09-21 11:07:38,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:38" (1/1) ... [2020-09-21 11:07:38,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:38" (1/1) ... [2020-09-21 11:07:38,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:38" (1/1) ... [2020-09-21 11:07:38,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:07:38,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:07:38,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:07:38,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:07:38,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:07:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:07:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:07:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:07:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:07:38,518 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:07:38,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:07:38,518 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:07:38,518 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:07:38,518 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:07:38,519 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:07:38,519 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:07:38,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:07:38,519 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:07:38,519 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:07:38,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:07:38,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:07:38,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-21 11:07:38,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-21 11:07:38,520 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:07:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:07:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:07:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:07:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:07:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:07:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:07:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:07:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:07:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:07:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:07:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:07:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:07:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:07:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:07:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:07:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:07:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:07:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:07:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:07:38,524 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 11:07:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:07:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:07:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:07:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:07:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:07:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:07:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:07:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:07:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:07:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:07:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-21 11:07:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:07:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:07:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:07:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:07:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:07:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:07:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:07:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:07:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:07:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:07:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:07:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:07:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:07:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:07:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-21 11:07:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:07:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:07:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:07:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:07:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:07:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:07:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:07:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:07:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:07:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:07:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:07:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:07:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:07:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:07:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:07:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:07:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:07:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 11:07:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:07:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:07:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:07:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:07:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:07:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:07:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:07:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:07:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:07:39,608 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:07:39,608 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:07:39,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:07:39 BoogieIcfgContainer [2020-09-21 11:07:39,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:07:39,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:07:39,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:07:39,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:07:39,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:07:37" (1/3) ... [2020-09-21 11:07:39,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3134c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:07:39, skipping insertion in model container [2020-09-21 11:07:39,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:38" (2/3) ... [2020-09-21 11:07:39,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3134c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:07:39, skipping insertion in model container [2020-09-21 11:07:39,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:07:39" (3/3) ... [2020-09-21 11:07:39,630 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product34.cil.c [2020-09-21 11:07:39,641 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:07:39,653 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:07:39,674 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:07:39,699 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:07:39,699 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:07:39,699 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:07:39,699 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:07:39,700 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:07:39,700 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:07:39,700 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:07:39,700 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:07:39,726 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2020-09-21 11:07:39,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 11:07:39,736 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:07:39,737 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] [2020-09-21 11:07:39,738 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:07:39,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:07:39,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1720198034, now seen corresponding path program 1 times [2020-09-21 11:07:39,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:07:39,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13883428] [2020-09-21 11:07:39,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:07:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:40,077 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:40,077 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:40,077 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:40,078 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:40,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 11:07:40,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:40,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:07:40,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-09-21 11:07:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:40,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:40,575 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:07:40,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:07:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:40,590 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:40,591 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:40,591 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:40,591 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:40,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:40,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:40,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:40,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:40,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:40,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:40,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:40,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:40,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:07:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:40,659 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:40,665 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:40,665 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:40,666 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:40,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:40,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:40,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:07:40,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:40,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:40,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:40,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:40,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:40,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:07:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:40,672 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:40,673 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:40,673 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:40,673 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:40,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:40,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:40,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:40,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:40,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:40,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:40,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:40,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:40,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:07:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:40,682 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:40,682 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:40,682 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:40,683 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:40,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:40,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:40,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:40,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:40,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:40,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:40,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:40,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:40,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:07:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:40,690 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:40,690 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:40,691 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:40,691 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:40,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:40,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:40,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:40,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:40,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:40,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:40,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:40,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:40,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:07:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:40,709 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:40,710 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:40,710 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:40,710 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:40,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:40,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:40,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:40,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:40,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:40,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:40,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:40,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:40,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:07:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:40,721 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:40,721 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:40,722 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:40,722 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:40,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:40,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:40,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:40,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:40,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:40,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:40,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:40,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:40,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 11:07:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:40,729 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:40,729 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:40,729 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:40,730 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:40,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:40,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:40,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:40,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:40,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:40,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:40,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:40,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:40,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:07:40,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13883428] [2020-09-21 11:07:40,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:07:40,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:07:40,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523398770] [2020-09-21 11:07:40,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:07:40,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:07:40,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:07:40,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:07:40,814 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 4 states. [2020-09-21 11:07:41,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:07:41,783 INFO L93 Difference]: Finished difference Result 258 states and 340 transitions. [2020-09-21 11:07:41,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 11:07:41,785 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-21 11:07:41,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:07:41,804 INFO L225 Difference]: With dead ends: 258 [2020-09-21 11:07:41,805 INFO L226 Difference]: Without dead ends: 145 [2020-09-21 11:07:41,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:07:41,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-09-21 11:07:41,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 114. [2020-09-21 11:07:41,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-21 11:07:41,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2020-09-21 11:07:41,903 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 51 [2020-09-21 11:07:41,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:07:41,904 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2020-09-21 11:07:41,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:07:41,904 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2020-09-21 11:07:41,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:07:41,908 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:07:41,908 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] [2020-09-21 11:07:41,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:07:41,908 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:07:41,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:07:41,909 INFO L82 PathProgramCache]: Analyzing trace with hash 220132220, now seen corresponding path program 1 times [2020-09-21 11:07:41,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:07:41,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786723935] [2020-09-21 11:07:41,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:07:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:41,971 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:41,972 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:41,972 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:41,972 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:41,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:07:41,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:41,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:07:41,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:41,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:41,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-21 11:07:41,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:07:41,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:42,347 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:07:42,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:07:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:42,365 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:42,365 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:42,366 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:42,366 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:42,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:42,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:42,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:42,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:42,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:42,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:42,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:42,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:42,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:07:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:42,402 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:42,402 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:42,403 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:42,403 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:42,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:42,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:42,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:42,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:42,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:42,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:42,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:42,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:42,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:07:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:42,407 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:42,407 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:42,407 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:42,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:42,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:42,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:42,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:42,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:42,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:42,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:42,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:42,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:42,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:07:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:42,412 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:42,412 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:42,412 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:42,412 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:42,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:42,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:42,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:42,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:42,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:42,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:42,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:42,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:42,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:07:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:42,416 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:42,417 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:42,417 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:42,417 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:42,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:42,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:42,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:42,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:42,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:42,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:42,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:42,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:42,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:07:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:42,434 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:42,434 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:42,434 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:42,435 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:42,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:42,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:42,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:42,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:42,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:42,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:42,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:42,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:42,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:07:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:42,439 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:42,439 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:42,440 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:42,440 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:42,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:42,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:42,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:42,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:42,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:42,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:42,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:42,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:42,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:07:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:42,445 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:42,445 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:42,445 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:42,445 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:42,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:42,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:42,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:42,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:42,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:42,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:42,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:42,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:07:42,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [786723935] [2020-09-21 11:07:42,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:07:42,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:07:42,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741747641] [2020-09-21 11:07:42,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:07:42,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:07:42,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:07:42,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:07:42,459 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 5 states. [2020-09-21 11:07:42,937 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:07:43,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:07:43,718 INFO L93 Difference]: Finished difference Result 199 states and 247 transitions. [2020-09-21 11:07:43,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:07:43,718 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-09-21 11:07:43,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:07:43,724 INFO L225 Difference]: With dead ends: 199 [2020-09-21 11:07:43,724 INFO L226 Difference]: Without dead ends: 135 [2020-09-21 11:07:43,727 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:07:43,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-21 11:07:43,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 105. [2020-09-21 11:07:43,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-21 11:07:43,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2020-09-21 11:07:43,778 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 52 [2020-09-21 11:07:43,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:07:43,779 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2020-09-21 11:07:43,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:07:43,779 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2020-09-21 11:07:43,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:07:43,785 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:07:43,785 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] [2020-09-21 11:07:43,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:07:43,789 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:07:43,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:07:43,789 INFO L82 PathProgramCache]: Analyzing trace with hash 889380391, now seen corresponding path program 1 times [2020-09-21 11:07:43,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:07:43,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651745688] [2020-09-21 11:07:43,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:07:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:44,296 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:07:44,297 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:44,297 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:44,297 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:44,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 11:07:44,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:44,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-09-21 11:07:44,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:44,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:07:44,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:44,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 11:07:44,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:44,656 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:07:44,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:07:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:44,724 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:44,725 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:44,725 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:44,725 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:44,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:44,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:44,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 11:07:44,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:44,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:44,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:44,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:07:44,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:44,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:07:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:44,767 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:44,767 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:44,767 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:44,767 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:44,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:44,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:44,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:44,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:44,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:44,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:44,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:44,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:44,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:07:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:44,772 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:44,772 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:44,772 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:44,772 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:44,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:44,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:44,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:44,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:44,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:44,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:44,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:44,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:44,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:07:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:44,778 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:44,778 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:44,778 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:44,778 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:44,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:44,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:44,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:44,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:44,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:44,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:44,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:44,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:44,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:07:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:44,783 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:44,784 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:44,784 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:44,784 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:44,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:44,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:44,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:44,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:44,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:44,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:44,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:44,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:44,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:07:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:44,799 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:44,800 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:44,800 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:44,800 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:44,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:44,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:44,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:44,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:44,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:44,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:44,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:44,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:44,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 11:07:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:44,805 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:44,805 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:44,805 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:44,805 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:44,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:44,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:44,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:44,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:44,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:44,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:44,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:44,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:44,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 11:07:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:44,810 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:44,810 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:44,810 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:44,810 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:44,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:44,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:44,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:44,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:44,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:44,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:44,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:44,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:44,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:07:44,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651745688] [2020-09-21 11:07:44,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:07:44,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:07:44,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081089347] [2020-09-21 11:07:44,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:07:44,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:07:44,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:07:44,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:07:44,823 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 5 states. [2020-09-21 11:07:45,161 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:07:45,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:07:45,998 INFO L93 Difference]: Finished difference Result 212 states and 266 transitions. [2020-09-21 11:07:45,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 11:07:45,998 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2020-09-21 11:07:45,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:07:46,001 INFO L225 Difference]: With dead ends: 212 [2020-09-21 11:07:46,001 INFO L226 Difference]: Without dead ends: 135 [2020-09-21 11:07:46,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:07:46,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-21 11:07:46,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 105. [2020-09-21 11:07:46,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-21 11:07:46,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 120 transitions. [2020-09-21 11:07:46,035 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 120 transitions. Word has length 57 [2020-09-21 11:07:46,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:07:46,036 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 120 transitions. [2020-09-21 11:07:46,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:07:46,036 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 120 transitions. [2020-09-21 11:07:46,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-21 11:07:46,038 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:07:46,038 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:07:46,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:07:46,038 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:07:46,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:07:46,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1390934310, now seen corresponding path program 1 times [2020-09-21 11:07:46,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:07:46,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081648759] [2020-09-21 11:07:46,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:07:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:46,393 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:46,393 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:46,393 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:46,393 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:46,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:07:46,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:46,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-09-21 11:07:46,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:46,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:07:46,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:46,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-21 11:07:46,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:46,842 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:07:46,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:07:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:46,946 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:46,946 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:46,946 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:46,947 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:46,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:46,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:46,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-21 11:07:46,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:46,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:46,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:46,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:07:46,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:46,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:07:47,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:47,004 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:47,005 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:47,005 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:47,005 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:47,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:47,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:47,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:47,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:47,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:47,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:47,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:47,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:47,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:07:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:47,013 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:47,013 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:47,013 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:47,014 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:47,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:47,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:47,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:47,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:47,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:47,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:47,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:47,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:47,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:07:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:47,021 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:47,022 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:47,022 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:47,022 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:47,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:47,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:47,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:47,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:47,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:47,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:47,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:47,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:47,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:07:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:47,031 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:47,031 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:47,032 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:47,032 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:47,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:47,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:47,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:47,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:47,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:47,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:47,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:47,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:47,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:07:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:47,049 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:47,050 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:47,050 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:47,050 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:47,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:47,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:47,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:47,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:47,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:47,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:47,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:47,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:47,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:07:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:47,073 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:47,073 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:47,073 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:47,074 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:47,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:07:47,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:47,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:07:47,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:47,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:07:47,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:07:47,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:07:47,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:47,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:07:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:47,097 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:47,097 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:47,098 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:47,098 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:47,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:47,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:47,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:47,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:47,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:47,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:47,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:47,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:47,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:07:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:47,105 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:47,105 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:47,105 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:47,106 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:47,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:47,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:47,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:47,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:47,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:47,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:47,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:47,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:47,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 11:07:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:47,112 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:47,112 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:47,113 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:47,113 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:47,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:47,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:47,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:47,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:47,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:47,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:47,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:47,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:47,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:07:47,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081648759] [2020-09-21 11:07:47,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:07:47,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:07:47,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405403882] [2020-09-21 11:07:47,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:07:47,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:07:47,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:07:47,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:07:47,133 INFO L87 Difference]: Start difference. First operand 105 states and 120 transitions. Second operand 7 states. [2020-09-21 11:07:47,613 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:07:48,890 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:07:49,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:07:49,495 INFO L93 Difference]: Finished difference Result 302 states and 382 transitions. [2020-09-21 11:07:49,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 11:07:49,495 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-09-21 11:07:49,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:07:49,499 INFO L225 Difference]: With dead ends: 302 [2020-09-21 11:07:49,499 INFO L226 Difference]: Without dead ends: 225 [2020-09-21 11:07:49,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:07:49,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-09-21 11:07:49,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 176. [2020-09-21 11:07:49,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-09-21 11:07:49,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 203 transitions. [2020-09-21 11:07:49,551 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 203 transitions. Word has length 65 [2020-09-21 11:07:49,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:07:49,552 INFO L479 AbstractCegarLoop]: Abstraction has 176 states and 203 transitions. [2020-09-21 11:07:49,552 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:07:49,552 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 203 transitions. [2020-09-21 11:07:49,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-21 11:07:49,553 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:07:49,554 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] [2020-09-21 11:07:49,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:07:49,554 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:07:49,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:07:49,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1075030192, now seen corresponding path program 1 times [2020-09-21 11:07:49,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:07:49,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [486350855] [2020-09-21 11:07:49,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:07:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:49,606 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:07:49,606 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -50 [2020-09-21 11:07:49,606 FATAL L256 erpolLogProxyWrapper]: Difference in width: 50 [2020-09-21 11:07:49,606 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:49,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 11:07:49,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:49,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:07:49,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:49,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:07:49,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-21 11:07:49,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:49,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:49,886 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:07:49,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:07:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:49,899 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:49,900 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:49,900 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:49,900 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:49,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:49,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:49,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:49,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:49,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:49,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:49,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:49,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:49,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:07:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:49,927 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:49,928 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:49,928 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:49,928 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:49,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:49,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:49,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:49,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:49,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:49,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:49,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:49,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:49,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:07:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:49,932 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:49,932 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:49,932 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:49,932 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:49,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:49,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:49,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:07:49,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:49,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:49,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:49,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:49,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:49,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:07:49,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:49,936 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:49,936 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:49,937 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:49,937 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:49,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:49,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:49,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:49,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:49,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:49,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:49,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:49,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:49,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:07:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:49,941 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:49,941 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:49,942 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:49,942 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:49,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:49,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:49,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:49,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:49,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:49,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:49,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:49,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:49,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:07:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:49,952 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:49,952 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:49,952 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:49,952 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:49,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:49,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:49,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:49,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:49,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:49,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:49,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:49,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:49,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:07:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:49,988 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:49,989 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:49,989 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:49,989 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:49,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:07:49,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:49,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:07:49,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:49,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:07:49,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:07:49,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:07:49,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:50,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:07:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:50,020 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:50,020 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:50,020 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:50,021 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:50,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:07:50,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:50,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:07:50,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:50,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:07:50,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:50,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:07:50,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:50,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:07:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:50,047 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:50,048 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:50,048 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:50,048 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:50,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:07:50,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:50,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:50,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:50,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:50,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:50,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:50,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:50,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:07:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:50,053 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:50,053 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:50,053 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:50,054 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:50,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:50,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:50,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:50,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:50,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:50,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:07:50,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:50,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:50,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 11:07:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:50,059 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:50,059 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:50,060 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:50,060 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:50,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:50,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:50,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:50,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:50,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:50,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:50,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:50,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:50,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:07:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:50,064 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:50,064 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:50,064 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:50,065 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:50,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:50,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:50,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:50,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:50,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:50,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:50,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:50,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:07:50,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [486350855] [2020-09-21 11:07:50,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:07:50,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:07:50,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660850080] [2020-09-21 11:07:50,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:07:50,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:07:50,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:07:50,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:07:50,080 INFO L87 Difference]: Start difference. First operand 176 states and 203 transitions. Second operand 9 states. [2020-09-21 11:07:51,139 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:07:51,441 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 11:07:51,767 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:07:52,086 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:07:52,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:07:52,935 INFO L93 Difference]: Finished difference Result 375 states and 466 transitions. [2020-09-21 11:07:52,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:07:52,936 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-09-21 11:07:52,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:07:52,939 INFO L225 Difference]: With dead ends: 375 [2020-09-21 11:07:52,939 INFO L226 Difference]: Without dead ends: 227 [2020-09-21 11:07:52,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:07:52,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-09-21 11:07:52,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 181. [2020-09-21 11:07:52,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-09-21 11:07:52,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 208 transitions. [2020-09-21 11:07:52,986 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 208 transitions. Word has length 79 [2020-09-21 11:07:52,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:07:52,986 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 208 transitions. [2020-09-21 11:07:52,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:07:52,986 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 208 transitions. [2020-09-21 11:07:52,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-21 11:07:52,988 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:07:52,988 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] [2020-09-21 11:07:52,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:07:52,988 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:07:52,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:07:52,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1584503282, now seen corresponding path program 1 times [2020-09-21 11:07:52,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:07:52,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853294832] [2020-09-21 11:07:52,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:07:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:53,399 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:53,400 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:53,400 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:53,400 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:53,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 11:07:53,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:53,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-09-21 11:07:53,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:53,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:07:53,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:53,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-21 11:07:53,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:53,776 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:07:53,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:07:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:53,840 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:53,840 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:53,841 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:53,841 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:53,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:53,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:53,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-21 11:07:53,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:53,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:53,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:53,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:07:53,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:53,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:07:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:53,884 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:53,884 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:53,884 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:53,885 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:53,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:53,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:53,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:53,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:53,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:53,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:53,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:53,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:53,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:07:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:53,890 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:53,890 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:53,891 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:53,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:53,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:53,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:53,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:53,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:53,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:53,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:53,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:53,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:53,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:07:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:53,896 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:53,896 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:53,896 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:53,896 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:53,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:53,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:53,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:53,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:53,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:53,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:53,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:53,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:53,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:07:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:53,903 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:53,903 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:53,904 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:53,904 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:53,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:53,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:53,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:53,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:53,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:53,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:53,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:53,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:53,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:07:53,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:53,924 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:53,925 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:53,925 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:53,926 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:53,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:53,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:53,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:53,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:53,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:53,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:53,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:53,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:53,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:07:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:53,950 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:53,950 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:53,950 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:53,951 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:53,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:07:53,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:53,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:53,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:53,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:53,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:53,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:07:53,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:53,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:07:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:53,959 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:53,960 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:53,960 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:53,960 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:53,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:07:53,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:53,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:53,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:53,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:53,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:53,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:53,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:53,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:07:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:53,967 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:53,967 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:53,968 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:53,968 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:53,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:07:53,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:53,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:53,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:53,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:53,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:53,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:53,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:53,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:07:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:53,974 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:53,974 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:53,974 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:53,974 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:53,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:53,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:53,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:53,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:53,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:53,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:53,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:53,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:53,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 11:07:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:53,982 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:53,982 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:53,983 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:53,983 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:53,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:53,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:53,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:07:53,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:53,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:07:53,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:53,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:53,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:54,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:07:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:54,006 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:54,007 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:54,007 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:54,007 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:54,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:54,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:54,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:54,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:54,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:54,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:54,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:54,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:54,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:07:54,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853294832] [2020-09-21 11:07:54,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:07:54,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:07:54,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110956139] [2020-09-21 11:07:54,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:07:54,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:07:54,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:07:54,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:07:54,034 INFO L87 Difference]: Start difference. First operand 181 states and 208 transitions. Second operand 9 states. [2020-09-21 11:07:54,424 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:07:55,744 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:07:56,069 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:07:56,390 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:07:56,689 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:07:57,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:07:57,657 INFO L93 Difference]: Finished difference Result 539 states and 685 transitions. [2020-09-21 11:07:57,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 11:07:57,660 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-09-21 11:07:57,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:07:57,667 INFO L225 Difference]: With dead ends: 539 [2020-09-21 11:07:57,667 INFO L226 Difference]: Without dead ends: 386 [2020-09-21 11:07:57,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-09-21 11:07:57,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-09-21 11:07:57,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 310. [2020-09-21 11:07:57,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2020-09-21 11:07:57,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 356 transitions. [2020-09-21 11:07:57,734 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 356 transitions. Word has length 79 [2020-09-21 11:07:57,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:07:57,735 INFO L479 AbstractCegarLoop]: Abstraction has 310 states and 356 transitions. [2020-09-21 11:07:57,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:07:57,735 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 356 transitions. [2020-09-21 11:07:57,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 11:07:57,737 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:07:57,737 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] [2020-09-21 11:07:57,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:07:57,737 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:07:57,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:07:57,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1898506966, now seen corresponding path program 1 times [2020-09-21 11:07:57,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:07:57,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571830407] [2020-09-21 11:07:57,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:07:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,162 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,162 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,162 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 11:07:58,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-09-21 11:07:58,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:07:58,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:58,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-21 11:07:58,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:58,514 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:07:58,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:07:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,576 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,576 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,577 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,577 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:58,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 11:07:58,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:58,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:07:58,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:58,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:07:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,612 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,612 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,612 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,612 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:58,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:58,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:58,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:58,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:58,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:07:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,618 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,618 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,618 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,619 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:58,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:58,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:58,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:58,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:58,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:07:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,623 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,624 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,624 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,624 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:58,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:58,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:58,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:58,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:58,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:07:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,629 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,629 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,629 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,630 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:58,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:58,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:58,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:58,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:58,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:07:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,644 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,644 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,644 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,644 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:58,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:58,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:58,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:58,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:58,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:07:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,662 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,663 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,663 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,663 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:58,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:58,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:58,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:58,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:58,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:07:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,682 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,683 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,683 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,683 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:07:58,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:58,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:58,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:07:58,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:58,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:07:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,696 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,697 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,697 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,697 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:07:58,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:58,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:58,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:07:58,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:58,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:07:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,705 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,705 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,706 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,706 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:07:58,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:58,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:58,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:58,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:58,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:07:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,713 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,713 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,714 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,714 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:58,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:58,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:58,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:58,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:58,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-21 11:07:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,720 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,720 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,720 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,721 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:58,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:58,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:58,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:58,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:58,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-21 11:07:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,729 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,729 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,729 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,730 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:58,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:07:58,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:07:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:58,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:58,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:07:58,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571830407] [2020-09-21 11:07:58,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:07:58,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 11:07:58,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045880196] [2020-09-21 11:07:58,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:07:58,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:07:58,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:07:58,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:07:58,774 INFO L87 Difference]: Start difference. First operand 310 states and 356 transitions. Second operand 10 states. [2020-09-21 11:07:59,200 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:08:00,547 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:08:00,855 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:08:01,214 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:08:01,586 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:08:02,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:08:02,807 INFO L93 Difference]: Finished difference Result 706 states and 881 transitions. [2020-09-21 11:08:02,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 11:08:02,807 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2020-09-21 11:08:02,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:08:02,812 INFO L225 Difference]: With dead ends: 706 [2020-09-21 11:08:02,812 INFO L226 Difference]: Without dead ends: 424 [2020-09-21 11:08:02,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2020-09-21 11:08:02,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-09-21 11:08:02,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 309. [2020-09-21 11:08:02,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-09-21 11:08:02,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 353 transitions. [2020-09-21 11:08:02,888 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 353 transitions. Word has length 83 [2020-09-21 11:08:02,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:08:02,889 INFO L479 AbstractCegarLoop]: Abstraction has 309 states and 353 transitions. [2020-09-21 11:08:02,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:08:02,889 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 353 transitions. [2020-09-21 11:08:02,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-21 11:08:02,891 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:08:02,891 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] [2020-09-21 11:08:02,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:08:02,892 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:08:02,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:08:02,892 INFO L82 PathProgramCache]: Analyzing trace with hash -226819900, now seen corresponding path program 1 times [2020-09-21 11:08:02,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:08:02,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1334650564] [2020-09-21 11:08:02,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:08:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:02,942 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:08:02,942 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -56 [2020-09-21 11:08:02,942 FATAL L256 erpolLogProxyWrapper]: Difference in width: 56 [2020-09-21 11:08:02,943 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:02,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-21 11:08:02,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:02,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:08:02,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:02,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:08:02,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-21 11:08:02,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:02,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:03,205 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:08:03,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:08:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:03,214 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:03,214 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:03,214 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:03,214 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:03,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:03,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:03,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:03,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:03,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:03,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:03,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:03,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:03,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:08:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:03,242 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:03,242 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:03,242 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:03,242 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:03,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:03,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:03,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:03,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:03,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:03,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:03,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:03,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:03,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:08:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:03,246 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:03,247 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:03,247 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:03,247 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:03,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:03,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:03,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:03,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:03,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:03,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:03,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:03,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:03,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:08:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:03,252 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:03,252 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:03,252 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:03,252 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:03,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:03,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:03,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:03,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:03,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:03,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:03,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:03,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:03,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:08:03,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:03,258 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:03,258 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:03,258 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:03,258 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:03,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:03,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:03,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:03,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:03,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:03,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:03,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:03,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:03,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:08:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:03,276 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:03,276 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:03,276 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:03,277 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:03,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:03,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:03,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:03,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:03,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:03,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:03,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:03,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:03,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:08:03,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:03,291 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:03,291 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:03,291 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:03,292 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:03,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:03,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:03,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:03,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:03,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:03,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:03,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:03,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:03,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:08:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:03,318 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:03,319 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:03,319 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:03,319 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:03,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:08:03,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:03,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:08:03,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:03,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:08:03,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:08:03,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:03,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:03,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:08:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:03,332 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:03,333 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:03,333 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:03,355 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:03,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:08:03,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:03,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 11:08:03,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:03,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:08:03,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:08:03,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:03,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:03,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:08:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:03,389 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:03,390 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:03,390 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:03,390 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:03,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:08:03,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:03,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:08:03,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:03,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:08:03,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:03,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:03,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:03,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:08:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:03,411 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:03,412 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:03,412 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:03,412 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:03,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:03,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:03,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:03,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:03,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:03,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:03,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:03,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:03,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:08:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:03,416 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:03,416 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:03,417 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:03,417 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:03,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:03,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:03,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:03,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:03,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:03,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:03,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:03,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:03,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:08:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:03,421 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:03,421 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:03,422 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:03,422 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:03,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:03,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:03,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:03,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:03,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:03,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:03,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:03,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:03,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:08:03,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1334650564] [2020-09-21 11:08:03,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:08:03,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:08:03,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468746440] [2020-09-21 11:08:03,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:08:03,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:08:03,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:08:03,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:08:03,436 INFO L87 Difference]: Start difference. First operand 309 states and 353 transitions. Second operand 9 states. [2020-09-21 11:08:04,492 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:08:04,814 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:08:05,115 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:08:06,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:08:06,074 INFO L93 Difference]: Finished difference Result 707 states and 891 transitions. [2020-09-21 11:08:06,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:08:06,075 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-09-21 11:08:06,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:08:06,081 INFO L225 Difference]: With dead ends: 707 [2020-09-21 11:08:06,081 INFO L226 Difference]: Without dead ends: 426 [2020-09-21 11:08:06,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-09-21 11:08:06,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-09-21 11:08:06,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 317. [2020-09-21 11:08:06,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-09-21 11:08:06,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 361 transitions. [2020-09-21 11:08:06,174 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 361 transitions. Word has length 84 [2020-09-21 11:08:06,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:08:06,175 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 361 transitions. [2020-09-21 11:08:06,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:08:06,175 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 361 transitions. [2020-09-21 11:08:06,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-21 11:08:06,178 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:08:06,178 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] [2020-09-21 11:08:06,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:08:06,179 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:08:06,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:08:06,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1613023294, now seen corresponding path program 1 times [2020-09-21 11:08:06,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:08:06,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2129141646] [2020-09-21 11:08:06,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:08:06,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:06,243 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:06,244 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:06,244 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:06,244 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:06,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-21 11:08:06,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:06,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:08:06,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:06,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:08:06,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-09-21 11:08:06,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:08:06,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:06,521 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:08:06,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:08:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:06,530 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:06,530 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:06,530 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:06,530 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:06,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:06,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:06,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:06,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:06,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:06,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:06,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:06,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:06,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:08:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:06,557 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:06,557 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:06,557 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:06,557 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:06,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:06,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:06,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:06,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:06,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:06,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:06,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:06,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:06,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:08:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:06,561 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:06,561 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:06,561 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:06,561 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:06,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:06,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:06,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:06,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:06,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:06,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:06,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:06,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:06,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:08:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:06,565 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:06,565 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:06,565 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:06,565 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:06,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:06,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:06,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:06,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:06,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:06,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:06,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:06,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:06,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:08:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:06,569 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:06,569 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:06,569 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:06,570 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:06,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:06,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:06,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:06,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:06,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:06,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:06,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:06,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:06,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:08:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:06,586 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:06,586 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:06,586 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:06,586 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:06,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:06,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:06,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:06,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:06,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:06,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:06,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:06,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:06,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:08:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:06,597 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:06,597 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:06,597 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:06,598 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:06,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:06,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:06,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:06,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:06,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:06,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:06,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:06,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:06,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:08:06,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:06,617 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:06,617 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:06,618 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:06,618 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:06,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:08:06,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:06,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:08:06,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:06,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:08:06,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:08:06,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:08:06,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:06,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:08:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:06,672 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:06,672 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:06,673 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:06,673 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:06,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:08:06,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:06,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:08:06,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:08:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:08:06,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:06,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:08:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:06,713 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:06,713 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:06,714 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:06,714 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:06,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:08:06,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:06,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:06,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:06,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:06,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:06,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:06,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:06,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:08:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:06,719 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:06,719 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:06,719 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:06,719 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:06,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:06,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:06,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:06,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:06,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:06,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:06,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:08:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:06,724 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:06,724 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:06,725 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:06,725 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:06,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:06,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:06,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:06,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:06,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:06,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:06,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:06,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:06,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:08:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:06,729 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:06,730 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:06,730 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:06,730 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:06,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:06,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:06,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:06,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:06,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:06,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:06,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:06,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:06,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:08:06,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2129141646] [2020-09-21 11:08:06,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:08:06,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 11:08:06,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892831510] [2020-09-21 11:08:06,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:08:06,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:08:06,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:08:06,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:08:06,745 INFO L87 Difference]: Start difference. First operand 317 states and 361 transitions. Second operand 10 states. [2020-09-21 11:08:07,900 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:08:08,238 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-21 11:08:08,591 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:08:08,916 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 11:08:09,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:08:09,898 INFO L93 Difference]: Finished difference Result 715 states and 895 transitions. [2020-09-21 11:08:09,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 11:08:09,899 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2020-09-21 11:08:09,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:08:09,902 INFO L225 Difference]: With dead ends: 715 [2020-09-21 11:08:09,902 INFO L226 Difference]: Without dead ends: 426 [2020-09-21 11:08:09,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-21 11:08:09,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-09-21 11:08:09,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 317. [2020-09-21 11:08:09,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-09-21 11:08:09,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 359 transitions. [2020-09-21 11:08:09,969 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 359 transitions. Word has length 84 [2020-09-21 11:08:09,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:08:09,970 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 359 transitions. [2020-09-21 11:08:09,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:08:09,970 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 359 transitions. [2020-09-21 11:08:09,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-21 11:08:09,972 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:08:09,972 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] [2020-09-21 11:08:09,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:08:09,972 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:08:09,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:08:09,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1884470469, now seen corresponding path program 1 times [2020-09-21 11:08:09,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:08:09,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [524570012] [2020-09-21 11:08:09,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:08:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:10,234 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:10,234 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:10,234 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:10,234 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:10,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-21 11:08:10,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:10,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-21 11:08:10,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:10,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:08:10,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:10,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 11:08:10,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:10,542 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:08:10,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:08:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:10,608 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:10,609 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:10,609 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:10,609 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:10,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:10,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:10,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 11:08:10,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:10,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:10,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:10,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:08:10,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:10,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:08:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:10,648 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:10,648 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:10,649 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:10,649 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:10,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:10,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:10,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:10,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:10,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:10,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:10,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:10,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:10,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:08:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:10,654 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:10,655 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:10,655 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:10,655 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:10,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:10,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:10,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:10,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:10,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:10,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:10,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:10,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:10,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:08:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:10,661 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:10,661 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:10,662 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:10,662 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:10,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:10,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:10,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:10,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:10,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:10,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:10,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:10,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:10,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:08:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:10,668 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:10,668 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:10,669 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:10,669 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:10,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:10,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:10,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:10,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:10,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:10,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:10,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:10,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:10,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:08:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:10,686 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:10,686 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:10,686 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:10,686 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:10,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:10,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:10,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:10,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:10,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:10,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:10,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:10,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:10,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:08:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:10,702 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:10,703 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:10,703 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:10,703 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:10,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:10,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:10,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:10,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:10,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:10,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:10,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:10,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:10,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:08:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:10,725 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:10,726 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:10,726 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:10,726 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:10,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:08:10,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:10,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:08:10,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:10,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:10,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:08:10,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-21 11:08:10,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:10,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:08:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:10,751 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:10,752 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:10,752 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:10,752 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:10,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:08:10,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:10,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:10,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:10,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:10,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:10,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:08:10,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:10,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:08:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:10,769 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:10,770 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:10,770 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:10,770 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:10,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:08:10,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:10,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:10,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:10,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:10,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:10,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:08:10,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:10,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:08:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:10,791 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:10,791 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:10,791 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:10,792 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:10,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:10,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:10,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:10,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:10,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:10,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:10,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:10,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:10,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:08:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:10,798 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:10,799 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:10,799 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:10,799 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:10,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:10,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:10,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:10,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:10,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:10,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:10,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:10,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:10,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:08:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:10,805 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:10,805 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:10,806 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:10,806 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:10,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:10,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:10,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:10,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:10,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:10,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:10,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:10,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:10,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:08:10,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [524570012] [2020-09-21 11:08:10,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:08:10,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:08:10,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936033837] [2020-09-21 11:08:10,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:08:10,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:08:10,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:08:10,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:08:10,857 INFO L87 Difference]: Start difference. First operand 317 states and 359 transitions. Second operand 8 states. [2020-09-21 11:08:11,289 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:08:11,928 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:08:14,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:08:14,276 INFO L93 Difference]: Finished difference Result 1041 states and 1362 transitions. [2020-09-21 11:08:14,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 11:08:14,277 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-09-21 11:08:14,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:08:14,282 INFO L225 Difference]: With dead ends: 1041 [2020-09-21 11:08:14,283 INFO L226 Difference]: Without dead ends: 752 [2020-09-21 11:08:14,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:08:14,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2020-09-21 11:08:14,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 607. [2020-09-21 11:08:14,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-09-21 11:08:14,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 711 transitions. [2020-09-21 11:08:14,389 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 711 transitions. Word has length 84 [2020-09-21 11:08:14,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:08:14,389 INFO L479 AbstractCegarLoop]: Abstraction has 607 states and 711 transitions. [2020-09-21 11:08:14,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:08:14,390 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 711 transitions. [2020-09-21 11:08:14,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-21 11:08:14,391 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:08:14,391 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] [2020-09-21 11:08:14,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:08:14,392 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:08:14,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:08:14,392 INFO L82 PathProgramCache]: Analyzing trace with hash 713728159, now seen corresponding path program 1 times [2020-09-21 11:08:14,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:08:14,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [402868414] [2020-09-21 11:08:14,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:08:14,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:14,447 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:14,447 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:14,448 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:14,448 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:14,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-21 11:08:14,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:14,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:08:14,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:14,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:08:14,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:08:14,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-21 11:08:14,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:14,747 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:08:14,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:08:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:14,754 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:14,755 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:14,755 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:14,755 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:14,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:14,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:14,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:14,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:14,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:14,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:14,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:14,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:14,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:08:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:14,793 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:14,793 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:14,793 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:14,793 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:14,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:14,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:14,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:08:14,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:14,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:14,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:14,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:14,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:14,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:08:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:14,797 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:14,797 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:14,797 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:14,798 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:14,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:14,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:14,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:14,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:14,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:14,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:14,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:14,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:14,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:08:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:14,801 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:14,801 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:14,802 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:14,802 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:14,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:14,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:14,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:14,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:14,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:14,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:14,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:14,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:14,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:08:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:14,806 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:14,806 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:14,806 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:14,806 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:14,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:14,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:14,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:14,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:14,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:14,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:14,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:14,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:14,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:08:14,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:14,818 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:14,818 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:14,818 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:14,819 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:14,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:14,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:14,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:14,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:14,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:14,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:14,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:08:14,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:08:14,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:08:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:14,836 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:14,837 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:14,837 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:14,837 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:14,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:14,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:14,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:14,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:14,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:14,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:14,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:14,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:14,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:08:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:14,853 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:14,854 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:14,854 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:14,854 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:14,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:14,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:14,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:14,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:14,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:14,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:14,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:14,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:14,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 11:08:14,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:14,871 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:14,872 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:14,872 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:14,872 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:14,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:08:14,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:14,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:14,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:14,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:14,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:14,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 11:08:14,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:14,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:08:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:14,879 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:14,879 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:14,879 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:14,879 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:14,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:08:14,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:14,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:14,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:14,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:14,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:14,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:14,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:14,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:08:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:14,884 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:14,884 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:14,884 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:14,885 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:14,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:08:14,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:14,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:14,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:14,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:14,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:14,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:14,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:14,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:08:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:14,889 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:14,889 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:14,889 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:14,889 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:14,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:14,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:14,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:14,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:14,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:14,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:14,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:14,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:14,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 11:08:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:14,895 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:14,895 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:14,895 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:14,895 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:14,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:14,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:14,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:14,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:14,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:14,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:14,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:14,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:14,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-21 11:08:14,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:14,900 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:14,901 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:14,901 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:14,901 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:14,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:14,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:14,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:14,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:14,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:14,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:14,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:14,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:14,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:08:14,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [402868414] [2020-09-21 11:08:14,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:08:14,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:08:14,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162273200] [2020-09-21 11:08:14,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:08:14,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:08:14,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:08:14,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:08:14,924 INFO L87 Difference]: Start difference. First operand 607 states and 711 transitions. Second operand 8 states. [2020-09-21 11:08:15,359 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:08:17,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:08:17,788 INFO L93 Difference]: Finished difference Result 1199 states and 1560 transitions. [2020-09-21 11:08:17,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 11:08:17,789 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2020-09-21 11:08:17,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:08:17,798 INFO L225 Difference]: With dead ends: 1199 [2020-09-21 11:08:17,798 INFO L226 Difference]: Without dead ends: 1196 [2020-09-21 11:08:17,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=187, Invalid=463, Unknown=0, NotChecked=0, Total=650 [2020-09-21 11:08:17,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2020-09-21 11:08:17,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 975. [2020-09-21 11:08:17,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 975 states. [2020-09-21 11:08:17,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1150 transitions. [2020-09-21 11:08:17,959 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1150 transitions. Word has length 88 [2020-09-21 11:08:17,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:08:17,960 INFO L479 AbstractCegarLoop]: Abstraction has 975 states and 1150 transitions. [2020-09-21 11:08:17,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:08:17,960 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1150 transitions. [2020-09-21 11:08:17,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-09-21 11:08:17,963 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:08:17,964 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:08:17,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:08:17,964 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:08:17,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:08:17,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1128183326, now seen corresponding path program 1 times [2020-09-21 11:08:17,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:08:17,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144021175] [2020-09-21 11:08:17,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:08:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:08:18,032 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:08:18,033 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:08:18,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:08:18,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:08:18 BoogieIcfgContainer [2020-09-21 11:08:18,072 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:08:18,076 INFO L168 Benchmark]: Toolchain (without parser) took 40441.52 ms. Allocated memory was 146.8 MB in the beginning and 670.6 MB in the end (delta: 523.8 MB). Free memory was 101.5 MB in the beginning and 122.4 MB in the end (delta: -20.9 MB). Peak memory consumption was 502.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:08:18,078 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-21 11:08:18,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.01 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 101.1 MB in the beginning and 171.5 MB in the end (delta: -70.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:08:18,080 INFO L168 Benchmark]: Boogie Preprocessor took 93.96 ms. Allocated memory is still 203.9 MB. Free memory was 171.5 MB in the beginning and 167.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:08:18,080 INFO L168 Benchmark]: RCFGBuilder took 1175.81 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 167.6 MB in the beginning and 196.7 MB in the end (delta: -29.1 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:08:18,084 INFO L168 Benchmark]: TraceAbstraction took 38450.61 ms. Allocated memory was 236.5 MB in the beginning and 670.6 MB in the end (delta: 434.1 MB). Free memory was 196.7 MB in the beginning and 122.4 MB in the end (delta: 74.3 MB). Peak memory consumption was 508.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:08:18,088 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 708.01 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 101.1 MB in the beginning and 171.5 MB in the end (delta: -70.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.96 ms. Allocated memory is still 203.9 MB. Free memory was 171.5 MB in the beginning and 167.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1175.81 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 167.6 MB in the beginning and 196.7 MB in the end (delta: -29.1 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 38450.61 ms. Allocated memory was 236.5 MB in the beginning and 670.6 MB in the end (delta: 434.1 MB). Free memory was 196.7 MB in the beginning and 122.4 MB in the end (delta: 74.3 MB). Peak memory consumption was 508.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 249]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L151] int waterLevel = 1; [L152] int methaneLevelCritical = 0; [L255] int methAndRunningLastTime ; [L498] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L765] int pumpRunning = 0; [L766] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L320] int retValue_acc ; [L323] retValue_acc = 1 [L324] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L113] CALL __utac_acc__Specification2_spec__1() [L260] methAndRunningLastTime = 0 [L113] RET __utac_acc__Specification2_spec__1() [L114] CALL test() [L697] int splverifierCounter ; [L698] int tmp ; [L699] int tmp___0 ; [L700] int tmp___1 ; [L701] int tmp___2 ; [L704] splverifierCounter = 0 [L706] COND TRUE 1 [L708] COND TRUE splverifierCounter < 4 [L714] tmp = __VERIFIER_nondet_int() [L716] COND TRUE \read(tmp) [L718] CALL waterRise() [L169] COND TRUE waterLevel < 2 [L170] waterLevel = waterLevel + 1 [L718] RET waterRise() [L724] tmp___0 = __VERIFIER_nondet_int() [L726] COND TRUE \read(tmp___0) [L728] CALL changeMethaneLevel() [L181] COND FALSE !(\read(methaneLevelCritical)) [L184] methaneLevelCritical = 1 [L728] RET changeMethaneLevel() [L734] tmp___2 = __VERIFIER_nondet_int() [L736] COND FALSE !(\read(tmp___2)) [L742] tmp___1 = __VERIFIER_nondet_int() [L744] COND TRUE \read(tmp___1) [L751] CALL timeShift() [L772] COND FALSE !(\read(pumpRunning)) [L779] COND TRUE \read(systemActive) [L781] CALL processEnvironment() [L801] int tmp ; [L804] COND TRUE ! pumpRunning [L806] CALL, EXPR isHighWaterLevel() [L898] int retValue_acc ; [L899] int tmp ; [L900] int tmp___0 ; [L904] CALL, EXPR isHighWaterSensorDry() [L231] int retValue_acc ; [L234] COND FALSE !(waterLevel < 2) [L238] retValue_acc = 0 [L239] return (retValue_acc); [L904] RET, EXPR isHighWaterSensorDry() [L904] tmp = isHighWaterSensorDry() [L906] COND FALSE !(\read(tmp)) [L909] tmp___0 = 1 [L911] retValue_acc = tmp___0 [L912] return (retValue_acc); [L806] RET, EXPR isHighWaterLevel() [L806] tmp = isHighWaterLevel() [L808] COND TRUE \read(tmp) [L810] CALL activatePump() [L829] pumpRunning = 1 [L810] RET activatePump() [L781] RET processEnvironment() [L787] CALL __utac_acc__Specification2_spec__2() [L265] int tmp ; [L266] int tmp___0 ; [L270] CALL, EXPR isMethaneLevelCritical() [L190] int retValue_acc ; [L193] retValue_acc = methaneLevelCritical [L194] return (retValue_acc); [L270] RET, EXPR isMethaneLevelCritical() [L270] tmp = isMethaneLevelCritical() [L272] COND TRUE \read(tmp) [L274] CALL, EXPR isPumpRunning() [L853] int retValue_acc ; [L856] retValue_acc = pumpRunning [L857] return (retValue_acc); [L274] RET, EXPR isPumpRunning() [L274] tmp___0 = isPumpRunning() [L276] COND TRUE \read(tmp___0) [L277] COND FALSE !(\read(methAndRunningLastTime)) [L282] methAndRunningLastTime = 1 [L787] RET __utac_acc__Specification2_spec__2() [L751] RET timeShift() [L706] COND TRUE 1 [L708] COND TRUE splverifierCounter < 4 [L714] tmp = __VERIFIER_nondet_int() [L716] COND FALSE !(\read(tmp)) [L724] tmp___0 = __VERIFIER_nondet_int() [L726] COND FALSE !(\read(tmp___0)) [L734] tmp___2 = __VERIFIER_nondet_int() [L736] COND FALSE !(\read(tmp___2)) [L742] tmp___1 = __VERIFIER_nondet_int() [L744] COND TRUE \read(tmp___1) [L751] CALL timeShift() [L772] COND TRUE \read(pumpRunning) [L774] CALL lowerWaterLevel() [L157] COND TRUE waterLevel > 0 [L158] waterLevel = waterLevel - 1 [L774] RET lowerWaterLevel() [L779] COND TRUE \read(systemActive) [L781] CALL processEnvironment() [L801] int tmp ; [L804] COND FALSE !(! pumpRunning) [L819] FCALL processEnvironment__wrappee__base() [L781] RET processEnvironment() [L787] CALL __utac_acc__Specification2_spec__2() [L265] int tmp ; [L266] int tmp___0 ; [L270] CALL, EXPR isMethaneLevelCritical() [L190] int retValue_acc ; [L193] retValue_acc = methaneLevelCritical [L194] return (retValue_acc); [L270] RET, EXPR isMethaneLevelCritical() [L270] tmp = isMethaneLevelCritical() [L272] COND TRUE \read(tmp) [L274] CALL, EXPR isPumpRunning() [L853] int retValue_acc ; [L856] retValue_acc = pumpRunning [L857] return (retValue_acc); [L274] RET, EXPR isPumpRunning() [L274] tmp___0 = isPumpRunning() [L276] COND TRUE \read(tmp___0) [L277] COND TRUE \read(methAndRunningLastTime) [L279] CALL __automaton_fail() [L249] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 38.3s, OverallIterations: 12, TraceHistogramMax: 2, AutomataDifference: 28.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1113 SDtfs, 2924 SDslu, 1226 SDs, 0 SdLazy, 5108 SolverSat, 2132 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 444 GetRequests, 286 SyntacticMatches, 4 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 12.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=975occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 961 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 937 NumberOfCodeBlocks, 937 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 795 ConstructedInterpolants, 0 QuantifiedInterpolants, 257197 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...