/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 enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:10:10,920 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:10:10,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:10:10,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:10:10,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:10:10,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:10:10,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:10:10,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:10:10,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:10:10,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:10:10,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:10:10,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:10:10,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:10:10,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:10:10,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:10:10,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:10:10,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:10:10,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:10:10,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:10:10,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:10:10,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:10:10,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:10:10,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:10:10,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:10:10,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:10:10,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:10:10,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:10:10,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:10:10,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:10:10,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:10:10,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:10:10,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:10:10,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:10:10,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:10:10,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:10:10,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:10:10,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:10:10,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:10:10,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:10:10,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:10:10,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:10:10,996 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 12:10:11,023 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:10:11,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:10:11,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:10:11,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:10:11,025 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:10:11,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:10:11,026 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:10:11,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:10:11,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:10:11,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:10:11,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:10:11,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:10:11,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:10:11,027 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:10:11,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:10:11,028 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:10:11,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:10:11,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:10:11,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:10:11,029 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:10:11,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:10:11,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:10:11,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:10:11,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:10:11,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:10:11,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:10:11,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:10:11,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:10:11,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:10:11,031 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;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:10:11,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:10:11,509 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:10:11,513 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:10:11,515 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:10:11,515 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:10:11,517 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c [2020-09-21 12:10:11,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e49ce165/64323de299f7401da8c86e362107bc06/FLAG98a4be0da [2020-09-21 12:10:12,112 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:10:12,113 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c [2020-09-21 12:10:12,129 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e49ce165/64323de299f7401da8c86e362107bc06/FLAG98a4be0da [2020-09-21 12:10:12,405 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e49ce165/64323de299f7401da8c86e362107bc06 [2020-09-21 12:10:12,418 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:10:12,424 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:10:12,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:10:12,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:10:12,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:10:12,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:10:12" (1/1) ... [2020-09-21 12:10:12,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@407cd36d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:12, skipping insertion in model container [2020-09-21 12:10:12,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:10:12" (1/1) ... [2020-09-21 12:10:12,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:10:12,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:10:12,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:10:12,930 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:10:13,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:10:13,204 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:10:13,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:13 WrapperNode [2020-09-21 12:10:13,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:10:13,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:10:13,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:10:13,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:10:13,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:13" (1/1) ... [2020-09-21 12:10:13,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:13" (1/1) ... [2020-09-21 12:10:13,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:13" (1/1) ... [2020-09-21 12:10:13,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:13" (1/1) ... [2020-09-21 12:10:13,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:13" (1/1) ... [2020-09-21 12:10:13,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:13" (1/1) ... [2020-09-21 12:10:13,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:13" (1/1) ... [2020-09-21 12:10:13,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:10:13,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:10:13,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:10:13,318 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:10:13,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:13" (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 12:10:13,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:10:13,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:10:13,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 12:10:13,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 12:10:13,391 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 12:10:13,391 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 12:10:13,391 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 12:10:13,391 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 12:10:13,392 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-21 12:10:13,392 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 12:10:13,392 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 12:10:13,392 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 12:10:13,392 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 12:10:13,392 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 12:10:13,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 12:10:13,393 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 12:10:13,393 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 12:10:13,393 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 12:10:13,394 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 12:10:13,394 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 12:10:13,394 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 12:10:13,394 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 12:10:13,394 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 12:10:13,395 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 12:10:13,395 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 12:10:13,395 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:10:13,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-21 12:10:13,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-21 12:10:13,395 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 12:10:13,396 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 12:10:13,396 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 12:10:13,396 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 12:10:13,396 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 12:10:13,396 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 12:10:13,397 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 12:10:13,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 12:10:13,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 12:10:13,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 12:10:13,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 12:10:13,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 12:10:13,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 12:10:13,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:10:13,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:10:13,398 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 12:10:13,398 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 12:10:13,398 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 12:10:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 12:10:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 12:10:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 12:10:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 12:10:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 12:10:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 12:10:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 12:10:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 12:10:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 12:10:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 12:10:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 12:10:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 12:10:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 12:10:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 12:10:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-21 12:10:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 12:10:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 12:10:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 12:10:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-21 12:10:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 12:10:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:10:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 12:10:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 12:10:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 12:10:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 12:10:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 12:10:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 12:10:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-21 12:10:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 12:10:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:10:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 12:10:13,404 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 12:10:13,404 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:10:13,404 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:10:13,404 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 12:10:13,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:10:13,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:10:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:10:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:10:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 12:10:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:10:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 12:10:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 12:10:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:10:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 12:10:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 12:10:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 12:10:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:10:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:10:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:10:14,445 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:10:14,446 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 12:10:14,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:10:14 BoogieIcfgContainer [2020-09-21 12:10:14,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:10:14,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:10:14,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:10:14,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:10:14,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:10:12" (1/3) ... [2020-09-21 12:10:14,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42994d50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:10:14, skipping insertion in model container [2020-09-21 12:10:14,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:10:13" (2/3) ... [2020-09-21 12:10:14,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42994d50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:10:14, skipping insertion in model container [2020-09-21 12:10:14,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:10:14" (3/3) ... [2020-09-21 12:10:14,461 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2020-09-21 12:10:14,472 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:10:14,482 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:10:14,504 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:10:14,534 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:10:14,534 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:10:14,534 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:10:14,534 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:10:14,534 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:10:14,535 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:10:14,535 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:10:14,535 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:10:14,564 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-09-21 12:10:14,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 12:10:14,582 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:14,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:10:14,584 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:14,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:14,593 INFO L82 PathProgramCache]: Analyzing trace with hash 925001116, now seen corresponding path program 1 times [2020-09-21 12:10:14,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:14,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [290707462] [2020-09-21 12:10:14,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:14,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:15,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:15,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:15,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:15,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 12:10:15,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:15,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-21 12:10:15,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:15,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:15,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-09-21 12:10:15,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:15,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:10:16,339 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:16,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:16,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-21 12:10:16,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:16,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:16,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:16,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:10:16,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:16,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:16,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:10:16,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:16,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:10:16,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:16,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:16,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:16,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 12:10:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:16,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:16,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:16,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 12:10:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:16,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:16,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:16,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:16,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:16,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:16,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:16,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:16,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:16,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:16,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:16,577 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 12:10:16,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [290707462] [2020-09-21 12:10:16,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:16,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:10:16,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853102852] [2020-09-21 12:10:16,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:10:16,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:16,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:10:16,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:10:16,609 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 4 states. [2020-09-21 12:10:17,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:17,743 INFO L93 Difference]: Finished difference Result 305 states and 395 transitions. [2020-09-21 12:10:17,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:10:17,746 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-21 12:10:17,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:17,764 INFO L225 Difference]: With dead ends: 305 [2020-09-21 12:10:17,765 INFO L226 Difference]: Without dead ends: 171 [2020-09-21 12:10:17,770 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 12:10:17,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-09-21 12:10:17,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 135. [2020-09-21 12:10:17,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-09-21 12:10:17,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 157 transitions. [2020-09-21 12:10:17,869 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 157 transitions. Word has length 51 [2020-09-21 12:10:17,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:17,869 INFO L479 AbstractCegarLoop]: Abstraction has 135 states and 157 transitions. [2020-09-21 12:10:17,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:10:17,870 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 157 transitions. [2020-09-21 12:10:17,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 12:10:17,873 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:17,873 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 12:10:17,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:10:17,874 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:17,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:17,874 INFO L82 PathProgramCache]: Analyzing trace with hash -214077655, now seen corresponding path program 1 times [2020-09-21 12:10:17,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:17,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294306004] [2020-09-21 12:10:17,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:17,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:18,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:18,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:18,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 12:10:18,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:18,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1028 [2020-09-21 12:10:18,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:18,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:18,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-21 12:10:18,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:10:18,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:19,344 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:19,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:19,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:19,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:19,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:19,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:19,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-21 12:10:19,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:19,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:19,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:19,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:19,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:19,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:19,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:19,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:19,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:19,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:19,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:19,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:19,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:19,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:19,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:19,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:19,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:19,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:19,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:19,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:19,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:19,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:19,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:19,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:19,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:19,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:19,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:19,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:19,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:19,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:19,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:19,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:19,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:19,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:19,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:19,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:19,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:19,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:19,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:19,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:19,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:19,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:19,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:19,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:19,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:19,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:19,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:19,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:19,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:19,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:19,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:19,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:19,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:19,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:19,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:19,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:19,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:19,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:19,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:19,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:19,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:19,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:10:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:19,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:19,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:19,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:19,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:19,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:19,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:19,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:19,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:19,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 12:10:19,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:19,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:19,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:19,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:19,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:19,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:19,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:19,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:19,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:19,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:19,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:19,498 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 12:10:19,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [294306004] [2020-09-21 12:10:19,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:19,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:10:19,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244096024] [2020-09-21 12:10:19,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:10:19,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:19,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:10:19,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:10:19,503 INFO L87 Difference]: Start difference. First operand 135 states and 157 transitions. Second operand 5 states. [2020-09-21 12:10:19,993 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:10:20,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:20,831 INFO L93 Difference]: Finished difference Result 237 states and 292 transitions. [2020-09-21 12:10:20,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:10:20,834 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-09-21 12:10:20,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:20,840 INFO L225 Difference]: With dead ends: 237 [2020-09-21 12:10:20,840 INFO L226 Difference]: Without dead ends: 161 [2020-09-21 12:10:20,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 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 12:10:20,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-09-21 12:10:20,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 126. [2020-09-21 12:10:20,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-21 12:10:20,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 145 transitions. [2020-09-21 12:10:20,905 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 145 transitions. Word has length 52 [2020-09-21 12:10:20,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:20,905 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 145 transitions. [2020-09-21 12:10:20,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:10:20,905 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 145 transitions. [2020-09-21 12:10:20,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 12:10:20,914 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:20,914 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 12:10:20,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:10:20,915 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:20,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:20,915 INFO L82 PathProgramCache]: Analyzing trace with hash 784654360, now seen corresponding path program 1 times [2020-09-21 12:10:20,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:20,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455121058] [2020-09-21 12:10:20,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:21,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:21,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 12:10:22,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:22,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1049 [2020-09-21 12:10:22,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:10:22,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:22,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 12:10:22,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:22,413 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:22,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:22,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:22,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-21 12:10:22,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:22,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:22,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:10:22,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:22,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:22,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:10:22,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:22,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:22,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:22,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:22,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:22,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:22,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:22,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:22,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:22,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:22,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:22,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:10:22,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:22,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:22,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:22,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:22,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:22,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:22,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:22,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:22,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:22,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:22,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:22,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:22,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:22,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:22,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:22,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:22,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:22,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 12:10:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:22,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:22,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:22,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:22,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:22,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:22,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 12:10:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:22,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:22,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:22,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:22,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:22,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:22,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:22,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:22,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:22,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:22,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:22,664 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 12:10:22,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455121058] [2020-09-21 12:10:22,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:22,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:10:22,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894492521] [2020-09-21 12:10:22,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:10:22,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:22,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:10:22,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:10:22,668 INFO L87 Difference]: Start difference. First operand 126 states and 145 transitions. Second operand 5 states. [2020-09-21 12:10:22,989 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:24,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:24,684 INFO L93 Difference]: Finished difference Result 368 states and 455 transitions. [2020-09-21 12:10:24,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:10:24,685 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2020-09-21 12:10:24,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:24,689 INFO L225 Difference]: With dead ends: 368 [2020-09-21 12:10:24,690 INFO L226 Difference]: Without dead ends: 270 [2020-09-21 12:10:24,691 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 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 12:10:24,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-21 12:10:24,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 208. [2020-09-21 12:10:24,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-09-21 12:10:24,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 245 transitions. [2020-09-21 12:10:24,752 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 245 transitions. Word has length 57 [2020-09-21 12:10:24,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:24,752 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 245 transitions. [2020-09-21 12:10:24,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:10:24,752 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 245 transitions. [2020-09-21 12:10:24,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-21 12:10:24,754 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:24,754 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] [2020-09-21 12:10:24,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:10:24,754 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:24,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:24,755 INFO L82 PathProgramCache]: Analyzing trace with hash 402514829, now seen corresponding path program 1 times [2020-09-21 12:10:24,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:24,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966918545] [2020-09-21 12:10:24,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:24,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:25,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:25,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-21 12:10:25,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:25,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1029 [2020-09-21 12:10:25,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:25,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 12:10:25,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:25,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-21 12:10:25,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:26,167 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:26,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:26,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:26,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:26,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:26,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:26,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-21 12:10:26,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:26,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:26,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:26,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:10:26,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:26,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:26,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:26,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:26,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:26,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:26,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:26,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:26,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:26,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:26,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:26,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:26,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:26,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:26,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:26,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:26,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:26,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:26,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:26,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:26,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:26,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:26,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:26,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:26,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:26,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:26,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:26,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:26,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:10:26,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:26,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:26,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:26,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:26,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:26,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:26,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:26,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:26,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:26,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:26,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:26,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:26,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:26,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:26,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:26,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:26,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:26,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:26,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:26,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:26,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:26,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:26,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:26,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:26,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:26,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:26,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:26,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:10:26,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:26,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:26,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:26,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:26,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:26,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:26,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:26,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:26,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:26,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:10:26,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:26,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 12:10:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:26,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:26,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:26,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:26,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:26,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:26,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:26,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:26,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:26,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:26,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:26,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 12:10:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:26,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:26,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:26,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:26,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:26,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:26,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:26,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:26,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:26,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:26,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:26,474 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 12:10:26,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966918545] [2020-09-21 12:10:26,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:26,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 12:10:26,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677476238] [2020-09-21 12:10:26,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:10:26,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:26,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:10:26,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:10:26,477 INFO L87 Difference]: Start difference. First operand 208 states and 245 transitions. Second operand 9 states. [2020-09-21 12:10:26,991 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:28,254 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:28,593 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:28,960 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:10:29,247 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:30,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:30,723 INFO L93 Difference]: Finished difference Result 674 states and 880 transitions. [2020-09-21 12:10:30,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 12:10:30,723 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-09-21 12:10:30,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:30,729 INFO L225 Difference]: With dead ends: 674 [2020-09-21 12:10:30,729 INFO L226 Difference]: Without dead ends: 494 [2020-09-21 12:10:30,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-09-21 12:10:30,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-09-21 12:10:30,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 371. [2020-09-21 12:10:30,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-09-21 12:10:30,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 440 transitions. [2020-09-21 12:10:30,841 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 440 transitions. Word has length 62 [2020-09-21 12:10:30,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:30,842 INFO L479 AbstractCegarLoop]: Abstraction has 371 states and 440 transitions. [2020-09-21 12:10:30,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:10:30,842 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 440 transitions. [2020-09-21 12:10:30,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-21 12:10:30,844 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:30,844 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] [2020-09-21 12:10:30,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:10:30,845 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:30,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:30,845 INFO L82 PathProgramCache]: Analyzing trace with hash 571350953, now seen corresponding path program 1 times [2020-09-21 12:10:30,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:30,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1566616143] [2020-09-21 12:10:30,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:30,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:31,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:31,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-21 12:10:31,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:10:31,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1010 [2020-09-21 12:10:31,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:31,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:10:31,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-09-21 12:10:31,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 12:10:31,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,178 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:32,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:32,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-21 12:10:32,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:32,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:32,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:32,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:32,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:32,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:32,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:32,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:32,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:32,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:32,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:32,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:32,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:32,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:32,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:32,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:32,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:32,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:32,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:32,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:32,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:32,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:32,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:32,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:32,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:32,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:32,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:32,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:32,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 12:10:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:32,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:32,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:32,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:32,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:32,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 12:10:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:32,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:32,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:32,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:32,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:32,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:32,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 12:10:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:32,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:32,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:32,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:32,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:32,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 12:10:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:32,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:32,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:32,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:32,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:32,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:10:32,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:32,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:10:32,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:32,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:32,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:32,427 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 12:10:32,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1566616143] [2020-09-21 12:10:32,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:32,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 12:10:32,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197581474] [2020-09-21 12:10:32,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 12:10:32,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:32,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 12:10:32,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:10:32,432 INFO L87 Difference]: Start difference. First operand 371 states and 440 transitions. Second operand 10 states. [2020-09-21 12:10:32,967 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:34,438 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-21 12:10:34,798 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:35,163 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:35,927 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:10:37,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:37,219 INFO L93 Difference]: Finished difference Result 1099 states and 1471 transitions. [2020-09-21 12:10:37,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-21 12:10:37,219 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 66 [2020-09-21 12:10:37,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:37,227 INFO L225 Difference]: With dead ends: 1099 [2020-09-21 12:10:37,227 INFO L226 Difference]: Without dead ends: 756 [2020-09-21 12:10:37,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2020-09-21 12:10:37,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-09-21 12:10:37,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 579. [2020-09-21 12:10:37,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2020-09-21 12:10:37,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 694 transitions. [2020-09-21 12:10:37,360 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 694 transitions. Word has length 66 [2020-09-21 12:10:37,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:37,361 INFO L479 AbstractCegarLoop]: Abstraction has 579 states and 694 transitions. [2020-09-21 12:10:37,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 12:10:37,361 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 694 transitions. [2020-09-21 12:10:37,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-21 12:10:37,364 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:37,364 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:37,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:10:37,364 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:37,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:37,365 INFO L82 PathProgramCache]: Analyzing trace with hash 206198489, now seen corresponding path program 1 times [2020-09-21 12:10:37,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:37,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [344739972] [2020-09-21 12:10:37,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:37,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:37,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:37,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:38,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:38,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-21 12:10:38,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:38,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-21 12:10:38,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:38,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:10:38,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-21 12:10:38,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 12:10:38,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:38,678 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:38,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:38,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:38,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:38,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:38,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:38,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 12:10:38,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:38,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:38,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:38,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:38,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:38,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:38,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:38,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:38,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:38,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:38,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:38,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:38,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:38,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:38,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:38,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:38,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:38,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:38,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:38,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:38,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:38,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:38,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:38,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:38,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:38,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:38,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:38,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:38,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:38,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:38,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:38,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:38,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:38,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:38,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:38,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:38,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:38,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:38,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:38,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:38,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:38,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:38,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:38,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:38,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:38,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:38,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:38,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:38,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:38,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:38,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:38,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:38,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:38,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:38,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:38,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:38,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:38,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:38,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:38,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:38,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:38,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 12:10:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:38,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:38,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:38,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:38,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:38,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:38,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:38,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:38,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:38,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:10:38,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:38,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:10:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:38,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:38,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:38,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 12:10:38,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:38,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-21 12:10:38,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:10:38,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-21 12:10:38,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-21 12:10:38,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:38,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:38,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:38,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:38,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:38,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:10:38,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:38,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:10:38,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:38,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:38,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:38,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:38,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:38,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:38,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:38,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:38,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:38,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:38,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:38,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:38,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:38,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:38,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:38,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:38,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:10:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:38,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:10:39,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 12:10:39,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:10:39,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 12:10:39,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:39,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:10:39,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:10:39,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:10:39,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:10:39,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:39,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:39,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:39,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:10:39,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:10:39,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:39,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:39,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:39,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:39,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:39,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:39,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:39,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-21 12:10:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:39,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:39,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:39,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:39,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:39,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:39,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-21 12:10:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:39,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:39,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:39,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:39,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:39,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:39,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:39,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:39,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:39,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:39,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:39,152 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:10:39,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [344739972] [2020-09-21 12:10:39,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:10:39,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-21 12:10:39,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549045314] [2020-09-21 12:10:39,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 12:10:39,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:39,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 12:10:39,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-21 12:10:39,155 INFO L87 Difference]: Start difference. First operand 579 states and 694 transitions. Second operand 13 states. [2020-09-21 12:10:39,791 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:40,689 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:41,314 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:41,742 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:42,711 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:43,053 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:43,431 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:43,788 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:44,082 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:44,403 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:44,824 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:45,170 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:10:46,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:46,644 INFO L93 Difference]: Finished difference Result 1315 states and 1705 transitions. [2020-09-21 12:10:46,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-21 12:10:46,645 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 99 [2020-09-21 12:10:46,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:46,651 INFO L225 Difference]: With dead ends: 1315 [2020-09-21 12:10:46,651 INFO L226 Difference]: Without dead ends: 764 [2020-09-21 12:10:46,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=274, Invalid=1058, Unknown=0, NotChecked=0, Total=1332 [2020-09-21 12:10:46,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2020-09-21 12:10:46,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 563. [2020-09-21 12:10:46,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2020-09-21 12:10:46,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 662 transitions. [2020-09-21 12:10:46,798 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 662 transitions. Word has length 99 [2020-09-21 12:10:46,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:46,799 INFO L479 AbstractCegarLoop]: Abstraction has 563 states and 662 transitions. [2020-09-21 12:10:46,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 12:10:46,799 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 662 transitions. [2020-09-21 12:10:46,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-21 12:10:46,811 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:46,812 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 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 12:10:46,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:10:46,813 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:46,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:46,813 INFO L82 PathProgramCache]: Analyzing trace with hash -286725828, now seen corresponding path program 1 times [2020-09-21 12:10:46,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:46,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957407664] [2020-09-21 12:10:46,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:46,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:47,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:47,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:47,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-21 12:10:47,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:47,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1038 [2020-09-21 12:10:47,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:47,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:47,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-21 12:10:47,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:10:47,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:48,174 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:48,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:48,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-21 12:10:48,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:48,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:48,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:48,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:48,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:48,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:48,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:48,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:48,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:48,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:48,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:48,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:48,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:48,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:48,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:48,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:48,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:48,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:48,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:48,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:48,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:48,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:48,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:48,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:48,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:48,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:48,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:48,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:48,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:48,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:48,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:48,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:48,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:48,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:48,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:48,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:10:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:48,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:48,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:48,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:48,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:10:48,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:48,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 12:10:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-21 12:10:48,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-21 12:10:48,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:48,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 12:10:48,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 12:10:48,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:48,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 12:10:48,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 12:10:48,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:48,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:48,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 12:10:48,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:48,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:10:48,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:10:48,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:48,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:48,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:48,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:48,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:48,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:48,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:48,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:48,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:48,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:48,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:10:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:10:48,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:10:48,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:48,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:48,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:48,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:48,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:10:48,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:48,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:48,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:48,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:48,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:48,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:48,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:48,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:48,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:48,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:48,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:48,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:48,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:48,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:48,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:48,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:48,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:48,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:48,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:10:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:10:48,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:48,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:48,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:48,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 12:10:48,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:10:48,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:48,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:48,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:48,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:48,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:48,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:48,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-21 12:10:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:48,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:48,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:48,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:48,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:48,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:48,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-21 12:10:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:48,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:48,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:48,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:48,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:48,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:48,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-21 12:10:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:48,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:48,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:48,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:48,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:48,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:48,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 12:10:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:48,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:48,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:48,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:48,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:48,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:48,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:48,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:48,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:10:48,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:48,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:48,644 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-21 12:10:48,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957407664] [2020-09-21 12:10:48,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:10:48,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-21 12:10:48,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122578702] [2020-09-21 12:10:48,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 12:10:48,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:48,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 12:10:48,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:10:48,647 INFO L87 Difference]: Start difference. First operand 563 states and 662 transitions. Second operand 11 states. [2020-09-21 12:10:49,212 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:10:50,013 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:10:53,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:53,092 INFO L93 Difference]: Finished difference Result 1436 states and 2007 transitions. [2020-09-21 12:10:53,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-21 12:10:53,093 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 132 [2020-09-21 12:10:53,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:53,103 INFO L225 Difference]: With dead ends: 1436 [2020-09-21 12:10:53,103 INFO L226 Difference]: Without dead ends: 901 [2020-09-21 12:10:53,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=416, Invalid=1840, Unknown=0, NotChecked=0, Total=2256 [2020-09-21 12:10:53,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2020-09-21 12:10:53,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 413. [2020-09-21 12:10:53,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-09-21 12:10:53,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 480 transitions. [2020-09-21 12:10:53,209 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 480 transitions. Word has length 132 [2020-09-21 12:10:53,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:53,209 INFO L479 AbstractCegarLoop]: Abstraction has 413 states and 480 transitions. [2020-09-21 12:10:53,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 12:10:53,210 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 480 transitions. [2020-09-21 12:10:53,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-09-21 12:10:53,212 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:53,212 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:10:53,213 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:10:53,213 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:53,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:53,213 INFO L82 PathProgramCache]: Analyzing trace with hash -2145799318, now seen corresponding path program 1 times [2020-09-21 12:10:53,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:53,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [927506600] [2020-09-21 12:10:53,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:53,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:54,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:54,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:54,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-21 12:10:54,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:10:54,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1126 [2020-09-21 12:10:54,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:54,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:10:54,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-09-21 12:10:54,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-21 12:10:54,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:54,666 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:10:54,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:10:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:54,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:54,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:54,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:54,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:54,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 12:10:54,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:54,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:54,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:54,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:54,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:54,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:10:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:54,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:54,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:54,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:54,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:54,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:54,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:54,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:54,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:54,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:54,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:54,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:10:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:54,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:54,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:54,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:54,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:54,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:54,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:54,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:54,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:54,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:54,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:54,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:54,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:54,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:54,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:54,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:54,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:54,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:54,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:54,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:54,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:54,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:54,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:10:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:54,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:54,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:54,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:54,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:54,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:54,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:54,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:54,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:54,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:54,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:54,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:10:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:54,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:54,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:54,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:54,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:54,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:54,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:54,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:54,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:54,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:54,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:54,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:10:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:54,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:54,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:54,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-21 12:10:54,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:54,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-21 12:10:54,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:54,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:54,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:54,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-21 12:10:54,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:54,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:54,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:54,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:54,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 12:10:54,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:54,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 12:10:54,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:54,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:54,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:54,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:54,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:54,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:54,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:54,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:54,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:10:54,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:54,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:10:54,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:54,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:54,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:54,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:54,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:54,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:54,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:54,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:54,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:54,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:10:54,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:54,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:54,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:54,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:54,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:54,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:54,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:54,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:10:54,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:54,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:54,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:54,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:10:54,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:54,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:10:54,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:54,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:54,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:54,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:54,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:54,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:54,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:54,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:54,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:10:54,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:54,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:54,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:54,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:54,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:54,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:54,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:54,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:54,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:54,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:54,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:54,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:54,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:54,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:54,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:54,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:54,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:54,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:54,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:10:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:54,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:54,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:54,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:54,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:54,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:54,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:54,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:54,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:54,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:54,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:54,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:10:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:54,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:54,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:54,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:10:54,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:54,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:10:54,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:54,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:54,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:54,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 12:10:54,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:54,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:10:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:54,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:54,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:54,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:54,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:54,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:10:54,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:54,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:54,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:54,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:54,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:54,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-09-21 12:10:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:54,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:54,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:54,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:54,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:54,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:10:54,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:54,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:54,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:54,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:54,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:55,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 12:10:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:55,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:55,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:55,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:55,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:55,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:10:55,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:55,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:55,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:55,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-21 12:10:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:55,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:55,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:55,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:10:55,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:55,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:10:55,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:55,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:55,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:55,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:10:55,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:55,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:10:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:55,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:55,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:55,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:10:55,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:55,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:10:55,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:55,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:10:55,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:55,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:10:55,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:55,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-21 12:10:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:55,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:55,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:55,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:55,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:55,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:55,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:55,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:55,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:55,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:55,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:55,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-21 12:10:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:55,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:10:55,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:10:55,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:10:55,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:10:55,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:10:55,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:10:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:10:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:10:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:10:55,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:10:55,080 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-21 12:10:55,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [927506600] [2020-09-21 12:10:55,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:10:55,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 12:10:55,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268592318] [2020-09-21 12:10:55,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:10:55,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:10:55,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:10:55,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:10:55,083 INFO L87 Difference]: Start difference. First operand 413 states and 480 transitions. Second operand 9 states. [2020-09-21 12:10:55,518 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:10:58,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:10:58,900 INFO L93 Difference]: Finished difference Result 1254 states and 1814 transitions. [2020-09-21 12:10:58,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-21 12:10:58,901 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 135 [2020-09-21 12:10:58,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:10:58,914 INFO L225 Difference]: With dead ends: 1254 [2020-09-21 12:10:58,915 INFO L226 Difference]: Without dead ends: 1251 [2020-09-21 12:10:58,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=220, Invalid=592, Unknown=0, NotChecked=0, Total=812 [2020-09-21 12:10:58,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2020-09-21 12:10:59,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 632. [2020-09-21 12:10:59,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2020-09-21 12:10:59,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 731 transitions. [2020-09-21 12:10:59,072 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 731 transitions. Word has length 135 [2020-09-21 12:10:59,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:10:59,074 INFO L479 AbstractCegarLoop]: Abstraction has 632 states and 731 transitions. [2020-09-21 12:10:59,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:10:59,074 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 731 transitions. [2020-09-21 12:10:59,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-09-21 12:10:59,078 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:10:59,079 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-21 12:10:59,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:10:59,079 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:10:59,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:10:59,080 INFO L82 PathProgramCache]: Analyzing trace with hash -347524986, now seen corresponding path program 1 times [2020-09-21 12:10:59,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:10:59,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [410236016] [2020-09-21 12:10:59,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:10:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:10:59,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:00,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:00,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:00,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-09-21 12:11:00,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:11:00,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1182 [2020-09-21 12:11:00,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:00,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:11:00,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:00,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 12:11:00,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:00,618 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:11:00,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:11:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:00,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:00,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:00,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:00,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:00,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-21 12:11:00,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:00,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:00,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:00,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:11:00,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:00,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:11:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:00,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:00,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:00,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:00,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:00,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:00,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:00,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:00,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:00,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:11:00,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:00,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:11:00,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:00,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:00,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:00,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:00,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:00,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:00,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:00,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:00,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:00,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:11:00,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:00,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:11:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:00,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:00,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:00,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:00,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:00,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:11:00,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:00,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:00,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:00,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:00,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:11:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:00,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:00,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:00,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:00,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:00,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:00,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:00,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:00,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:00,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:11:00,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:00,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:11:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:00,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:00,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:00,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:00,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:00,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:00,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:00,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:00,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:00,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:00,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:00,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:11:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:00,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:00,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:00,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-21 12:11:00,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:00,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-21 12:11:00,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:00,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:11:00,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:11:00,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-21 12:11:00,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:00,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 12:11:01,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-21 12:11:01,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:11:01,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:01,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 12:11:01,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:01,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:11:01,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:11:01,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:01,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:01,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:11:01,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:01,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:11:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:11:01,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:01,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:01,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:01,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:11:01,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:01,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:11:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:11:01,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 12:11:01,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:01,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:01,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 12:11:01,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:01,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:11:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:11:01,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:01,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:01,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:01,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:01,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:01,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:11:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:01,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:11:01,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:01,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:01,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:01,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:01,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:11:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:01,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:01,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:01,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:01,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:01,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:11:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:11:01,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:11:01,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:01,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:01,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 12:11:01,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:01,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:11:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:01,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:11:01,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:01,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:01,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:01,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:01,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-09-21 12:11:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:01,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:11:01,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:01,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:01,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:01,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:01,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-21 12:11:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-21 12:11:01,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 12:11:01,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:01,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-21 12:11:01,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:01,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:01,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:11:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:01,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:01,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:01,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:01,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:01,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:01,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:11:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:11:01,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:11:01,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:01,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:01,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:01,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:01,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:01,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:11:01,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:01,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:01,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:01,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:01,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-21 12:11:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 12:11:01,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:11:01,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:01,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:01,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:11:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:01,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:01,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:01,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:01,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:01,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:01,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 12:11:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:01,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:01,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:01,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:01,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:01,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:01,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-21 12:11:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:01,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:01,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:01,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:01,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:01,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:01,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-21 12:11:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:11:01,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:11:01,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:01,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:11:01,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:01,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:01,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:01,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:01,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:11:01,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:01,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:01,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:01,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:01,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-21 12:11:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:01,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:01,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:01,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:01,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:01,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:01,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-21 12:11:01,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:01,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:01,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:01,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:01,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:01,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:11:01,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:01,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:01,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:01,529 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 41 proven. 9 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-09-21 12:11:01,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [410236016] [2020-09-21 12:11:01,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:11:01,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 12:11:01,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513852589] [2020-09-21 12:11:01,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 12:11:01,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:11:01,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 12:11:01,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:11:01,532 INFO L87 Difference]: Start difference. First operand 632 states and 731 transitions. Second operand 12 states. [2020-09-21 12:11:02,325 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 189