/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --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_spec1_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:08:26,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:08:26,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:08:27,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:08:27,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:08:27,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:08:27,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:08:27,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:08:27,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:08:27,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:08:27,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:08:27,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:08:27,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:08:27,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:08:27,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:08:27,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:08:27,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:08:27,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:08:27,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:08:27,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:08:27,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:08:27,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:08:27,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:08:27,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:08:27,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:08:27,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:08:27,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:08:27,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:08:27,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:08:27,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:08:27,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:08:27,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:08:27,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:08:27,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:08:27,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:08:27,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:08:27,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:08:27,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:08:27,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:08:27,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:08:27,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:08:27,069 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 [2020-09-24 20:08:27,116 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:08:27,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:08:27,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:08:27,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:08:27,119 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:08:27,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:08:27,119 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:08:27,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:08:27,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:08:27,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:08:27,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:08:27,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:08:27,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:08:27,122 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:08:27,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:08:27,122 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:08:27,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:08:27,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:08:27,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:08:27,123 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:08:27,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:08:27,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:08:27,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:08:27,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:08:27,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:08:27,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:08:27,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:08:27,125 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:08:27,125 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:08:27,125 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;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=5000;interpolation-heuristic=BIGGEST;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=5000;interpolation-heuristic=BIGGEST;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=5000;interpolation-heuristic=BIGGEST;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=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-09-24 20:08:27,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:08:27,559 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:08:27,565 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:08:27,570 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:08:27,570 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:08:27,571 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-09-24 20:08:27,657 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4101cfa5f/aac83cfe4669463584260478c186f5d9/FLAGcee79dd3c [2020-09-24 20:08:28,257 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:08:28,258 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-09-24 20:08:28,274 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4101cfa5f/aac83cfe4669463584260478c186f5d9/FLAGcee79dd3c [2020-09-24 20:08:28,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4101cfa5f/aac83cfe4669463584260478c186f5d9 [2020-09-24 20:08:28,544 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:08:28,549 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:08:28,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:08:28,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:08:28,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:08:28,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:08:28" (1/1) ... [2020-09-24 20:08:28,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db1276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:28, skipping insertion in model container [2020-09-24 20:08:28,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:08:28" (1/1) ... [2020-09-24 20:08:28,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:08:28,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:08:28,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:08:29,088 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:08:29,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:08:29,219 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:08:29,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:29 WrapperNode [2020-09-24 20:08:29,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:08:29,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:08:29,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:08:29,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:08:29,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:29" (1/1) ... [2020-09-24 20:08:29,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:29" (1/1) ... [2020-09-24 20:08:29,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:29" (1/1) ... [2020-09-24 20:08:29,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:29" (1/1) ... [2020-09-24 20:08:29,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:29" (1/1) ... [2020-09-24 20:08:29,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:29" (1/1) ... [2020-09-24 20:08:29,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:29" (1/1) ... [2020-09-24 20:08:29,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:08:29,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:08:29,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:08:29,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:08:29,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:29" (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 [2020-09-24 20:08:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:08:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:08:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:08:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:08:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:08:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:08:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:08:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:08:29,413 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:08:29,413 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:08:29,413 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:08:29,413 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 20:08:29,413 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:08:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:08:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:08:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:08:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:08:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:08:29,415 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:08:29,415 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 20:08:29,415 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 20:08:29,415 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:08:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:08:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:08:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:08:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:08:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:08:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:08:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 20:08:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:08:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:08:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:08:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:08:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:08:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:08:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 20:08:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:08:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:08:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:08:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:08:29,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:08:29,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:08:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:08:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:08:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:08:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:08:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:08:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:08:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:08:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:08:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:08:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 20:08:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:08:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:08:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:08:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:08:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:08:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:08:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:08:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 20:08:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:08:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:08:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:08:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:08:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 20:08:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:08:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:08:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:08:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:08:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 20:08:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 20:08:29,424 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:08:29,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:08:29,424 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:08:29,424 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:08:29,424 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:08:29,424 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:08:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:08:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:08:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:08:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:08:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:08:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:08:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:08:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:08:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:08:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:08:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:08:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:08:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:08:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:08:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:08:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:08:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:08:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:08:29,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:08:29,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:08:29,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:08:30,605 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:08:30,605 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:08:30,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:08:30 BoogieIcfgContainer [2020-09-24 20:08:30,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:08:30,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:08:30,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:08:30,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:08:30,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:08:28" (1/3) ... [2020-09-24 20:08:30,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3acac843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:08:30, skipping insertion in model container [2020-09-24 20:08:30,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:29" (2/3) ... [2020-09-24 20:08:30,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3acac843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:08:30, skipping insertion in model container [2020-09-24 20:08:30,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:08:30" (3/3) ... [2020-09-24 20:08:30,629 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2020-09-24 20:08:30,641 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:08:30,654 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:08:30,678 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:08:30,722 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:08:30,723 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:08:30,723 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:08:30,723 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:08:30,724 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:08:30,725 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:08:30,725 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:08:30,725 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:08:30,772 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states. [2020-09-24 20:08:30,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 20:08:30,801 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:08:30,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:08:30,803 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:08:30,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:08:30,811 INFO L82 PathProgramCache]: Analyzing trace with hash 2046718669, now seen corresponding path program 1 times [2020-09-24 20:08:30,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:08:30,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803615674] [2020-09-24 20:08:30,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:08:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:31,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:31,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:32,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:33,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:35,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:36,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:36,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 20:08:36,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:08:36,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-09-24 20:08:36,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:36,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:08:36,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 20:08:36,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-24 20:08:36,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:08:36,798 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:08:36,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:08:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:36,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:37,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:37,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:08:37,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:37,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-24 20:08:37,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:37,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:37,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:37,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 20:08:37,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:37,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:08:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:37,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:37,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:37,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:37,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:37,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:08:37,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:37,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:37,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:37,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:37,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:37,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:08:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:37,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:37,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:37,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:37,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:37,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:08:37,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:37,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:37,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:37,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:37,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:37,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:08:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:37,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:37,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:37,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:37,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:37,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:08:37,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:37,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:37,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:37,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:08:37,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:37,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:08:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:37,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:37,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:37,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:37,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:37,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:08:37,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:37,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:37,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:37,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:37,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:37,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:08:37,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:37,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:37,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:37,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:37,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:37,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:08:37,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:37,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:37,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:37,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:08:37,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:37,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 20:08:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:37,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:37,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:37,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:37,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:37,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:08:37,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:37,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:37,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:37,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:08:37,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:37,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:08:37,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1803615674] [2020-09-24 20:08:37,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:08:37,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:08:37,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095730310] [2020-09-24 20:08:37,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:08:37,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:08:37,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:08:37,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:08:37,350 INFO L87 Difference]: Start difference. First operand 338 states. Second operand 8 states. [2020-09-24 20:08:37,955 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:08:39,130 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:39,391 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:39,671 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:39,989 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:40,272 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:41,064 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:08:41,389 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:41,732 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:43,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:08:43,256 INFO L93 Difference]: Finished difference Result 664 states and 833 transitions. [2020-09-24 20:08:43,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 20:08:43,259 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 20:08:43,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:08:43,302 INFO L225 Difference]: With dead ends: 664 [2020-09-24 20:08:43,302 INFO L226 Difference]: Without dead ends: 437 [2020-09-24 20:08:43,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:08:43,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-09-24 20:08:43,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 393. [2020-09-24 20:08:43,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-09-24 20:08:43,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 454 transitions. [2020-09-24 20:08:43,480 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 454 transitions. Word has length 142 [2020-09-24 20:08:43,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:08:43,481 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 454 transitions. [2020-09-24 20:08:43,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:08:43,482 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 454 transitions. [2020-09-24 20:08:43,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 20:08:43,487 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:08:43,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:08:43,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:08:43,488 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:08:43,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:08:43,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1051506646, now seen corresponding path program 1 times [2020-09-24 20:08:43,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:08:43,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [89538658] [2020-09-24 20:08:43,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:08:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:43,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:44,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:48,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:48,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 20:08:48,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:08:48,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-24 20:08:48,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:48,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:08:48,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 20:08:48,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-09-24 20:08:48,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:48,909 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:08:48,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:08:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:48,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:49,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:49,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:08:49,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:49,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-24 20:08:49,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:49,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:49,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:49,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 20:08:49,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:49,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:08:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:49,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:49,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:49,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:49,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:49,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:08:49,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:49,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:49,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:49,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:49,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:49,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:08:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:49,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:49,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:49,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:49,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:49,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:08:49,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:49,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:49,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:49,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:49,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:49,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:08:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:49,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:49,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:49,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:49,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:49,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:08:49,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:49,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:49,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:49,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:08:49,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:49,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:08:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:49,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:49,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:49,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:49,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:49,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:08:49,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:49,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:49,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:49,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:49,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:49,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 20:08:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:49,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:49,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:49,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:49,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 20:08:49,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:08:49,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-24 20:08:49,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:49,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:49,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 20:08:49,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:08:49,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:49,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:49,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:49,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:49,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:08:49,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:49,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 20:08:49,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:49,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:49,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 20:08:49,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:08:49,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:49,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:49,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:49,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:49,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:08:49,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:49,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 20:08:49,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:49,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:49,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:08:49,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:08:49,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:08:49,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:49,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:49,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:49,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:08:49,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:49,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 20:08:49,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:49,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:49,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:08:49,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:08:49,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:49,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:08:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:49,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:49,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:49,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:08:49,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:49,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:08:49,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:49,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:08:49,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:49,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:08:49,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:49,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:08:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:49,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:49,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:49,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:08:49,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:49,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:08:49,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:49,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:49,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:08:49,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:49,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:49,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 20:08:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:49,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:49,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:49,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:49,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:49,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:08:49,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:49,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:49,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:49,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:08:49,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:49,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 20:08:49,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:49,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:49,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:49,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:49,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:49,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:49,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:49,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:49,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:08:49,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:49,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:49,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:08:49,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [89538658] [2020-09-24 20:08:49,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:08:49,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 20:08:49,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146872432] [2020-09-24 20:08:49,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 20:08:49,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:08:49,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 20:08:49,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:08:49,925 INFO L87 Difference]: Start difference. First operand 393 states and 454 transitions. Second operand 13 states. [2020-09-24 20:08:50,386 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:51,594 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-24 20:08:52,218 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 20:08:52,586 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:52,955 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:08:53,304 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:53,775 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:54,129 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:08:54,460 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:54,787 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:55,121 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:08:55,480 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:08:55,815 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:56,175 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:56,605 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:56,933 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:57,309 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:57,677 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:58,001 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:09:00,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:09:00,551 INFO L93 Difference]: Finished difference Result 1101 states and 1471 transitions. [2020-09-24 20:09:00,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 20:09:00,560 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 195 [2020-09-24 20:09:00,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:09:00,569 INFO L225 Difference]: With dead ends: 1101 [2020-09-24 20:09:00,569 INFO L226 Difference]: Without dead ends: 772 [2020-09-24 20:09:00,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=191, Invalid=931, Unknown=0, NotChecked=0, Total=1122 [2020-09-24 20:09:00,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2020-09-24 20:09:00,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 647. [2020-09-24 20:09:00,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 647 states. [2020-09-24 20:09:00,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 753 transitions. [2020-09-24 20:09:00,680 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 753 transitions. Word has length 195 [2020-09-24 20:09:00,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:09:00,682 INFO L479 AbstractCegarLoop]: Abstraction has 647 states and 753 transitions. [2020-09-24 20:09:00,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 20:09:00,682 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 753 transitions. [2020-09-24 20:09:00,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-24 20:09:00,686 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:09:00,687 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:09:00,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:09:00,687 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:09:00,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:09:00,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1436218862, now seen corresponding path program 1 times [2020-09-24 20:09:00,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:09:00,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569527908] [2020-09-24 20:09:00,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:09:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:00,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:00,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:01,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:01,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:01,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:03,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:05,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:05,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-09-24 20:09:05,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:09:05,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 20:09:05,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:05,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:09:05,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 20:09:05,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 20:09:05,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:06,142 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:09:06,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:09:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:06,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:06,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:06,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:09:06,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:06,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-09-24 20:09:06,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:06,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:06,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:06,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 20:09:06,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:06,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:09:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:06,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:06,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:06,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:06,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:06,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:09:06,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:06,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:06,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:06,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:09:06,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:06,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:09:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:06,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:06,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:06,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:06,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:06,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:06,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:06,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:06,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:06,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:09:06,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:06,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:09:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:06,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:06,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:06,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:06,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:06,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:09:06,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:06,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:06,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:06,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:09:06,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:06,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:09:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:06,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:06,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:06,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:06,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:06,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:06,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:06,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:06,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:06,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:09:06,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:06,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:09:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:06,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:06,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:06,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:09:06,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:06,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:09:06,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:06,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:06,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:06,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:09:06,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:06,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 20:09:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:06,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:06,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:06,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:09:06,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:06,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:09:06,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:06,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:06,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 20:09:06,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 20:09:06,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:06,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:09:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:06,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:06,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:06,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:09:06,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:06,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:09:06,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:06,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:06,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:06,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 20:09:06,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:06,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:09:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:06,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:06,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:06,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:06,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:06,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:06,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:06,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:06,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:06,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:06,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:06,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 20:09:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:06,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:06,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:06,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:06,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 20:09:06,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:09:06,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 20:09:06,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:06,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:09:06,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 20:09:06,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:09:06,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:06,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:09:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:06,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:06,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:06,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:09:06,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:06,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 20:09:06,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:06,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:09:06,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 20:09:06,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:09:06,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:06,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:09:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:06,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:06,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:06,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:09:06,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:06,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 20:09:06,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:06,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:09:06,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:09:06,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:09:06,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:06,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:09:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:06,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:06,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:06,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:09:06,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:06,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 20:09:06,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:06,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:09:06,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:06,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:09:06,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:07,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:09:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:07,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:07,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:07,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:09:07,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:07,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:09:07,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:07,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:07,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:07,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:07,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:07,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:09:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:07,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:07,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:07,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:09:07,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:07,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:07,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:07,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:07,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:09:07,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:07,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:07,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-24 20:09:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:07,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:07,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:07,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:07,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:07,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:07,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:07,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:07,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:09:07,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:07,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:07,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-09-24 20:09:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:07,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:07,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:07,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:07,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:07,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:07,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:09:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:07,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:07,094 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 20:09:07,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569527908] [2020-09-24 20:09:07,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:09:07,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 20:09:07,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853259561] [2020-09-24 20:09:07,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 20:09:07,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:09:07,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 20:09:07,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:09:07,097 INFO L87 Difference]: Start difference. First operand 647 states and 753 transitions. Second operand 13 states. [2020-09-24 20:09:07,642 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:09:08,699 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:09:09,446 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:09,783 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:10,129 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:09:10,486 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:10,893 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:09:11,229 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:11,608 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:09:11,954 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:12,339 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:09:12,762 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:13,166 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:09:13,522 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:17,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:09:17,300 INFO L93 Difference]: Finished difference Result 2189 states and 2836 transitions. [2020-09-24 20:09:17,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-24 20:09:17,301 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 225 [2020-09-24 20:09:17,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:09:17,312 INFO L225 Difference]: With dead ends: 2189 [2020-09-24 20:09:17,313 INFO L226 Difference]: Without dead ends: 1652 [2020-09-24 20:09:17,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=303, Invalid=1029, Unknown=0, NotChecked=0, Total=1332 [2020-09-24 20:09:17,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1652 states. [2020-09-24 20:09:17,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1652 to 1197. [2020-09-24 20:09:17,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2020-09-24 20:09:17,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1406 transitions. [2020-09-24 20:09:17,476 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1406 transitions. Word has length 225 [2020-09-24 20:09:17,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:09:17,476 INFO L479 AbstractCegarLoop]: Abstraction has 1197 states and 1406 transitions. [2020-09-24 20:09:17,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 20:09:17,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1406 transitions. [2020-09-24 20:09:17,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 20:09:17,481 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:09:17,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:09:17,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:09:17,481 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:09:17,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:09:17,482 INFO L82 PathProgramCache]: Analyzing trace with hash -612654907, now seen corresponding path program 1 times [2020-09-24 20:09:17,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:09:17,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1890128546] [2020-09-24 20:09:17,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:09:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:17,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:18,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:18,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-24 20:09:18,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:18,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1238 [2020-09-24 20:09:18,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:18,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 20:09:18,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 20:09:18,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-24 20:09:18,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:19,042 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:09:19,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:09:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:19,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:19,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:19,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:09:19,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:19,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-09-24 20:09:19,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:19,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:19,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:19,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 20:09:19,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:19,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:09:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:19,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:19,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:19,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:19,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:19,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:19,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:19,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:19,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:19,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:09:19,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:19,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:09:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:19,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:19,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:19,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:19,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:19,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:19,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:19,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:19,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:19,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:09:19,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:19,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:09:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:19,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:19,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:19,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:19,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:19,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:09:19,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:19,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:19,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:19,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:09:19,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:19,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:09:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:19,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:19,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:19,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:19,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:19,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:09:19,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:19,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:19,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:19,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:09:19,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:19,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:09:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:19,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:19,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:19,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:09:19,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:19,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:09:19,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:19,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:19,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:19,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:09:19,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:19,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 20:09:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:19,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:19,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:19,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 20:09:19,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:19,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 20:09:19,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:19,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:19,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 20:09:19,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 20:09:19,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:19,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:09:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:19,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:19,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:19,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:09:19,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:19,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 20:09:19,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:19,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:19,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:19,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 20:09:19,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:19,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:09:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:19,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:19,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:19,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:09:19,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:19,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 20:09:19,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:19,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:19,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:19,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 20:09:19,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:19,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:09:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:19,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:19,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:19,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:09:19,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:19,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:09:19,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:19,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:19,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:19,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:09:19,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:19,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:09:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:19,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:19,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:19,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:09:19,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:19,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:19,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:19,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:19,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:19,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 20:09:19,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:19,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:09:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:19,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:19,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:19,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:09:19,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:19,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:09:19,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:19,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:19,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:19,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:09:19,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:19,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 20:09:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:19,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:19,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:19,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:19,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:19,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:19,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:19,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:19,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:09:19,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:19,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:19,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 20:09:19,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:19,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:19,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:19,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:19,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:19,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:19,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:19,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:19,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:09:19,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:19,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:19,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:09:19,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1890128546] [2020-09-24 20:09:19,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:09:19,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 20:09:19,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506464583] [2020-09-24 20:09:19,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 20:09:19,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:09:19,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 20:09:19,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:09:19,660 INFO L87 Difference]: Start difference. First operand 1197 states and 1406 transitions. Second operand 7 states. [2020-09-24 20:09:20,131 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186