/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 17:47:37,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 17:47:37,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 17:47:37,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 17:47:37,995 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 17:47:37,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 17:47:37,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 17:47:38,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 17:47:38,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 17:47:38,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 17:47:38,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 17:47:38,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 17:47:38,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 17:47:38,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 17:47:38,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 17:47:38,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 17:47:38,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 17:47:38,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 17:47:38,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 17:47:38,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 17:47:38,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 17:47:38,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 17:47:38,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 17:47:38,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 17:47:38,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 17:47:38,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 17:47:38,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 17:47:38,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 17:47:38,026 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 17:47:38,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 17:47:38,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 17:47:38,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 17:47:38,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 17:47:38,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 17:47:38,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 17:47:38,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 17:47:38,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 17:47:38,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 17:47:38,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 17:47:38,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 17:47:38,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 17:47:38,041 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 17:47:38,084 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 17:47:38,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 17:47:38,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 17:47:38,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 17:47:38,087 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 17:47:38,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 17:47:38,088 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 17:47:38,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 17:47:38,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 17:47:38,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 17:47:38,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 17:47:38,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 17:47:38,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 17:47:38,091 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 17:47:38,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 17:47:38,091 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 17:47:38,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 17:47:38,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 17:47:38,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 17:47:38,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 17:47:38,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 17:47:38,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 17:47:38,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 17:47:38,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 17:47:38,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 17:47:38,094 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 17:47:38,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 17:47:38,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 17:47:38,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 17:47:38,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 17:47:38,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 17:47:38,418 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 17:47:38,424 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 17:47:38,426 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 17:47:38,427 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 17:47:38,428 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2020-10-12 17:47:38,507 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f2cb3f4ca/a9425845ebc54fa59a96a5997f669da1/FLAG46f54027a [2020-10-12 17:47:39,110 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 17:47:39,110 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2020-10-12 17:47:39,133 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f2cb3f4ca/a9425845ebc54fa59a96a5997f669da1/FLAG46f54027a [2020-10-12 17:47:39,370 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f2cb3f4ca/a9425845ebc54fa59a96a5997f669da1 [2020-10-12 17:47:39,377 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 17:47:39,379 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 17:47:39,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 17:47:39,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 17:47:39,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 17:47:39,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:47:39" (1/1) ... [2020-10-12 17:47:39,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7785e529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:39, skipping insertion in model container [2020-10-12 17:47:39,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:47:39" (1/1) ... [2020-10-12 17:47:39,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 17:47:39,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 17:47:39,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 17:47:39,891 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 17:47:40,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 17:47:40,086 INFO L208 MainTranslator]: Completed translation [2020-10-12 17:47:40,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:40 WrapperNode [2020-10-12 17:47:40,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 17:47:40,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 17:47:40,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 17:47:40,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 17:47:40,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:40" (1/1) ... [2020-10-12 17:47:40,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:40" (1/1) ... [2020-10-12 17:47:40,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:40" (1/1) ... [2020-10-12 17:47:40,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:40" (1/1) ... [2020-10-12 17:47:40,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:40" (1/1) ... [2020-10-12 17:47:40,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:40" (1/1) ... [2020-10-12 17:47:40,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:40" (1/1) ... [2020-10-12 17:47:40,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 17:47:40,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 17:47:40,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 17:47:40,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 17:47:40,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:40" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 17:47:40,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 17:47:40,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 17:47:40,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-12 17:47:40,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-12 17:47:40,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-12 17:47:40,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-12 17:47:40,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-12 17:47:40,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-12 17:47:40,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-12 17:47:40,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-12 17:47:40,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-12 17:47:40,252 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-12 17:47:40,252 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-12 17:47:40,252 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-12 17:47:40,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-12 17:47:40,254 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-12 17:47:40,254 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-12 17:47:40,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-12 17:47:40,254 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-12 17:47:40,254 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-12 17:47:40,255 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-12 17:47:40,255 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-12 17:47:40,255 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-12 17:47:40,256 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-12 17:47:40,256 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-12 17:47:40,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-12 17:47:40,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-12 17:47:40,257 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-12 17:47:40,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-12 17:47:40,257 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-12 17:47:40,257 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-12 17:47:40,258 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-12 17:47:40,258 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-12 17:47:40,258 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-12 17:47:40,259 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-12 17:47:40,259 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-12 17:47:40,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-12 17:47:40,259 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-12 17:47:40,259 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 17:47:40,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 17:47:40,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 17:47:40,260 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-12 17:47:40,260 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-12 17:47:40,260 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 17:47:40,260 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 17:47:40,261 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-12 17:47:40,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 17:47:40,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 17:47:40,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 17:47:40,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 17:47:40,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-12 17:47:40,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 17:47:40,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-12 17:47:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-12 17:47:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 17:47:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-12 17:47:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-12 17:47:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 17:47:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-12 17:47:40,263 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-12 17:47:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-12 17:47:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-12 17:47:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-12 17:47:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-12 17:47:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-12 17:47:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-12 17:47:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-12 17:47:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-12 17:47:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-12 17:47:40,266 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-12 17:47:40,266 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-12 17:47:40,267 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-12 17:47:40,268 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-12 17:47:40,268 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-12 17:47:40,268 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-12 17:47:40,268 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-12 17:47:40,268 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-12 17:47:40,269 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-12 17:47:40,269 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-12 17:47:40,269 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-12 17:47:40,269 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-12 17:47:40,269 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-12 17:47:40,270 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-12 17:47:40,270 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-12 17:47:40,270 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-12 17:47:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-12 17:47:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-12 17:47:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-12 17:47:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 17:47:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 17:47:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 17:47:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 17:47:41,275 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 17:47:41,275 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-12 17:47:41,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:47:41 BoogieIcfgContainer [2020-10-12 17:47:41,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 17:47:41,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 17:47:41,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 17:47:41,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 17:47:41,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:47:39" (1/3) ... [2020-10-12 17:47:41,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796c3589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:47:41, skipping insertion in model container [2020-10-12 17:47:41,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:47:40" (2/3) ... [2020-10-12 17:47:41,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796c3589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:47:41, skipping insertion in model container [2020-10-12 17:47:41,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:47:41" (3/3) ... [2020-10-12 17:47:41,290 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2020-10-12 17:47:41,300 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 17:47:41,309 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 17:47:41,323 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 17:47:41,345 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 17:47:41,346 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 17:47:41,346 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 17:47:41,346 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 17:47:41,346 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 17:47:41,346 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 17:47:41,346 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 17:47:41,346 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 17:47:41,370 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states. [2020-10-12 17:47:41,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-12 17:47:41,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:47:41,382 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] [2020-10-12 17:47:41,382 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:47:41,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:47:41,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1081228888, now seen corresponding path program 1 times [2020-10-12 17:47:41,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:47:41,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1218609847] [2020-10-12 17:47:41,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:47:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:41,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:41,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:42,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:42,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:43,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:46,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:46,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 17:47:46,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 17:47:46,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4815 [2020-10-12 17:47:46,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:46,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 17:47:46,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:47:46,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 17:47:46,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 17:47:46,955 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:47:46,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:47:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:47,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:47,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:47,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:47:47,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:47,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-12 17:47:47,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:47,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:47:47,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:47,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:47:47,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:47:47,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:47:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:47,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:47,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:47,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:47:47,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:47,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:47:47,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:47,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:47:47,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:47,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:47:47,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:47:47,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:47:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:47,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:47,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:47,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:47:47,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:47,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:47:47,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:47,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:47:47,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:47,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:47:47,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:47,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:47:47,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:47,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:47,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:47,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:47:47,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:47,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 17:47:47,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:47,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:47:47,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:47,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:47:47,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:47:47,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:47:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:47,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:47,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:47,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:47:47,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:47,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:47:47,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:47,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:47:47,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:47,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:47:47,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:47:47,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 17:47:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:47,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:47,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:47,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:47:47,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:47,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:47:47,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:47,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:47:47,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:47,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:47:47,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:47,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 17:47:47,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:47,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:47,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:47,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:47:47,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:47,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 17:47:47,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:47,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:47:47,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:47,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:47:47,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:47,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 17:47:47,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1218609847] [2020-10-12 17:47:47,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 17:47:47,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 17:47:47,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395381057] [2020-10-12 17:47:47,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 17:47:47,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:47:47,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 17:47:47,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-12 17:47:47,259 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 7 states. [2020-10-12 17:47:47,901 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:47:48,952 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:47:49,252 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:47:49,509 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:47:50,086 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:47:50,359 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:47:51,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:47:51,465 INFO L93 Difference]: Finished difference Result 391 states and 546 transitions. [2020-10-12 17:47:51,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 17:47:51,467 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2020-10-12 17:47:51,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:47:51,483 INFO L225 Difference]: With dead ends: 391 [2020-10-12 17:47:51,484 INFO L226 Difference]: Without dead ends: 240 [2020-10-12 17:47:51,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-12 17:47:51,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-10-12 17:47:51,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 205. [2020-10-12 17:47:51,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-12 17:47:51,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 260 transitions. [2020-10-12 17:47:51,605 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 260 transitions. Word has length 46 [2020-10-12 17:47:51,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:47:51,606 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 260 transitions. [2020-10-12 17:47:51,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 17:47:51,606 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 260 transitions. [2020-10-12 17:47:51,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 17:47:51,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:47:51,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 17:47:51,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 17:47:51,612 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:47:51,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:47:51,612 INFO L82 PathProgramCache]: Analyzing trace with hash -2089178819, now seen corresponding path program 1 times [2020-10-12 17:47:51,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:47:51,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1448761030] [2020-10-12 17:47:51,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:47:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:51,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:51,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:51,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:52,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:56,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:56,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 17:47:56,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 17:47:56,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-12 17:47:56,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:56,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 17:47:56,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:47:56,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-12 17:47:56,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:56,987 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:47:56,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:47:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:57,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:57,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:57,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:47:57,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:57,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-12 17:47:57,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:57,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:47:57,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:57,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:47:57,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:57,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:47:57,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:57,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:57,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:57,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:47:57,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:57,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:47:57,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:57,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:47:57,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:57,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:47:57,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:57,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:47:57,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:57,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:57,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:57,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:47:57,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:57,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:47:57,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:57,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:47:57,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:57,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:47:57,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:57,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:47:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:57,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:57,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:57,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:47:57,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:57,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:47:57,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:57,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:47:57,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:57,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:47:57,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:57,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:47:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:57,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:57,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:57,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:47:57,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:57,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:47:57,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:57,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:47:57,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:57,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:47:57,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:57,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 17:47:57,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:57,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:57,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:57,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:57,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:57,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 17:47:57,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 17:47:57,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-12 17:47:57,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:57,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:47:57,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 17:47:57,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 17:47:57,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:57,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:47:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:57,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:57,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:57,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:57,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 17:47:57,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 17:47:57,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 17:47:57,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:57,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:47:57,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 17:47:57,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 17:47:57,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:57,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:47:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:57,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:57,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:57,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:57,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 17:47:57,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 17:47:57,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 17:47:57,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:57,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:47:57,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 17:47:57,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:47:57,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:57,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:47:57,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:57,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:57,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:57,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 17:47:57,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:57,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:47:57,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:57,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 17:47:57,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:57,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:47:57,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:57,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 17:47:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:57,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:57,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:57,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:47:57,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:57,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:47:57,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:57,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:47:57,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:47:57,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:47:57,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:57,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 17:47:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:57,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:57,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:57,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:47:57,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:57,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:47:57,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:47:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:47:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:47:57,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:57,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 17:47:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:47:57,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:47:57,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:47:57,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:47:57,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:47:57,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:47:57,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:47:57,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:47:57,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:47:57,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:47:57,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:47:57,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 17:47:57,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1448761030] [2020-10-12 17:47:57,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 17:47:57,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 17:47:57,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010007364] [2020-10-12 17:47:57,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 17:47:57,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:47:57,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 17:47:57,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-10-12 17:47:57,423 INFO L87 Difference]: Start difference. First operand 205 states and 260 transitions. Second operand 13 states. [2020-10-12 17:47:57,890 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:47:58,667 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:47:58,994 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:47:59,260 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:47:59,617 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 17:47:59,840 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:48:00,122 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:48:00,403 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:48:00,681 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:48:01,053 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:48:01,357 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:48:01,617 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:48:01,876 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:48:02,364 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:48:04,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:48:04,005 INFO L93 Difference]: Finished difference Result 686 states and 1030 transitions. [2020-10-12 17:48:04,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 17:48:04,006 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 79 [2020-10-12 17:48:04,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:48:04,014 INFO L225 Difference]: With dead ends: 686 [2020-10-12 17:48:04,014 INFO L226 Difference]: Without dead ends: 461 [2020-10-12 17:48:04,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=126, Invalid=630, Unknown=0, NotChecked=0, Total=756 [2020-10-12 17:48:04,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2020-10-12 17:48:04,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 367. [2020-10-12 17:48:04,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2020-10-12 17:48:04,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 461 transitions. [2020-10-12 17:48:04,117 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 461 transitions. Word has length 79 [2020-10-12 17:48:04,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:48:04,118 INFO L479 AbstractCegarLoop]: Abstraction has 367 states and 461 transitions. [2020-10-12 17:48:04,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 17:48:04,118 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 461 transitions. [2020-10-12 17:48:04,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-12 17:48:04,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:48:04,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 17:48:04,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 17:48:04,123 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:48:04,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:48:04,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1596121919, now seen corresponding path program 1 times [2020-10-12 17:48:04,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:48:04,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426961161] [2020-10-12 17:48:04,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:48:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:04,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:04,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:04,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 17:48:04,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:04,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 613 [2020-10-12 17:48:04,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:04,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 17:48:04,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:04,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 17:48:04,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:05,069 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:48:05,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:48:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:05,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:05,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:05,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:05,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:05,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 17:48:05,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:05,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:05,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:05,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:48:05,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:05,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:48:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:05,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:05,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:05,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:05,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:05,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:05,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:05,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:05,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:05,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:05,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:05,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:48:05,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:05,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:05,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:05,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:05,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:05,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:05,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:05,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:05,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:05,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:05,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:05,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:48:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:05,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:05,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:05,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:05,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:05,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:05,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:05,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:05,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:05,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:05,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:05,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:48:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:05,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:05,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:05,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:05,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:05,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:05,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:05,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:05,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:05,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:05,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:05,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 17:48:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:05,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:05,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:05,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:05,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:05,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:05,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:05,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:05,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:05,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:05,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:05,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 17:48:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:05,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:05,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:05,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 17:48:05,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:05,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 17:48:05,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:05,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:05,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 17:48:05,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 17:48:05,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:05,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:05,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:05,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:05,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 17:48:05,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:05,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 17:48:05,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 17:48:05,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:05,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:05,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:05,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:05,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 17:48:05,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:05,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 17:48:05,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:05,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:05,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:05,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 17:48:05,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:05,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:05,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:05,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:05,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 17:48:05,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:05,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:05,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:05,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:05,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:05,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 17:48:05,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:05,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 17:48:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:05,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:05,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:05,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:05,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:05,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:05,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:05,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:05,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:05,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:05,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:05,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 17:48:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:05,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:05,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:05,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:05,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:05,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:05,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:05,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:05,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:05,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:05,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:05,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 17:48:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:05,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:05,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:05,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:05,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:05,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:05,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:05,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:05,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:05,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:05,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:05,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 17:48:05,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426961161] [2020-10-12 17:48:05,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 17:48:05,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 17:48:05,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490822763] [2020-10-12 17:48:05,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 17:48:05,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:48:05,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 17:48:05,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-12 17:48:05,320 INFO L87 Difference]: Start difference. First operand 367 states and 461 transitions. Second operand 7 states. [2020-10-12 17:48:05,699 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:48:06,204 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:48:09,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:48:09,541 INFO L93 Difference]: Finished difference Result 1453 states and 2160 transitions. [2020-10-12 17:48:09,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 17:48:09,542 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2020-10-12 17:48:09,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:48:09,559 INFO L225 Difference]: With dead ends: 1453 [2020-10-12 17:48:09,559 INFO L226 Difference]: Without dead ends: 1110 [2020-10-12 17:48:09,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-10-12 17:48:09,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2020-10-12 17:48:09,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 883. [2020-10-12 17:48:09,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 883 states. [2020-10-12 17:48:09,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1163 transitions. [2020-10-12 17:48:09,834 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1163 transitions. Word has length 83 [2020-10-12 17:48:09,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:48:09,836 INFO L479 AbstractCegarLoop]: Abstraction has 883 states and 1163 transitions. [2020-10-12 17:48:09,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 17:48:09,836 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1163 transitions. [2020-10-12 17:48:09,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-12 17:48:09,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:48:09,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 17:48:09,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 17:48:09,846 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:48:09,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:48:09,847 INFO L82 PathProgramCache]: Analyzing trace with hash 547997666, now seen corresponding path program 1 times [2020-10-12 17:48:09,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:48:09,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2094016792] [2020-10-12 17:48:09,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:48:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:09,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:10,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:10,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 17:48:10,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:10,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-12 17:48:10,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:10,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:48:10,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-12 17:48:10,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 17:48:10,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:10,369 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:48:10,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:48:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:10,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:10,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:10,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:10,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:10,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 17:48:10,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:10,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:10,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:10,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:10,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:10,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:48:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:10,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:10,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:10,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:10,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:10,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:10,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:10,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:10,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:10,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:10,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:10,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:48:10,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:10,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:10,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:10,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:10,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:10,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:10,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:10,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:10,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:10,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:10,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:10,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:48:10,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:10,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:10,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:10,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:10,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:10,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:10,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:10,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:10,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:10,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:10,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:10,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:48:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:10,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:10,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:10,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:10,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:10,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:10,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:10,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:10,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:10,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:10,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:10,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 17:48:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:10,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:10,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:10,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:10,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:10,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:10,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:10,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:10,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:10,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:10,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:10,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 17:48:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:10,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:10,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:10,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 17:48:10,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:10,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 17:48:10,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:10,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:48:10,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 17:48:10,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 17:48:10,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:10,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:10,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:10,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:10,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 17:48:10,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:10,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 17:48:10,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:10,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:48:10,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 17:48:10,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 17:48:10,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:10,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:10,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:10,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:10,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 17:48:10,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:10,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 17:48:10,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:10,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:10,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:10,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 17:48:10,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:10,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:10,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:10,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:10,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 17:48:10,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:10,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:10,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:10,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:10,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:10,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:10,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:48:10,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 17:48:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:10,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:10,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:10,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:10,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:10,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:10,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:10,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:10,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:10,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:10,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:48:10,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 17:48:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:10,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:10,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:10,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:10,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:10,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:10,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:10,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:10,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:10,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:10,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:10,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 17:48:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:10,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:10,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:10,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:10,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:10,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:10,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:10,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:10,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:10,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:10,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:10,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 17:48:10,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2094016792] [2020-10-12 17:48:10,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 17:48:10,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 17:48:10,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053037217] [2020-10-12 17:48:10,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 17:48:10,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:48:10,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 17:48:10,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-12 17:48:10,609 INFO L87 Difference]: Start difference. First operand 883 states and 1163 transitions. Second operand 9 states. [2020-10-12 17:48:11,597 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:48:11,879 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 17:48:12,154 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:48:12,434 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:48:13,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:48:13,652 INFO L93 Difference]: Finished difference Result 1979 states and 2786 transitions. [2020-10-12 17:48:13,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 17:48:13,653 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-10-12 17:48:13,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:48:13,665 INFO L225 Difference]: With dead ends: 1979 [2020-10-12 17:48:13,665 INFO L226 Difference]: Without dead ends: 1120 [2020-10-12 17:48:13,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-12 17:48:13,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2020-10-12 17:48:13,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 903. [2020-10-12 17:48:13,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 903 states. [2020-10-12 17:48:13,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1183 transitions. [2020-10-12 17:48:13,925 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1183 transitions. Word has length 83 [2020-10-12 17:48:13,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:48:13,925 INFO L479 AbstractCegarLoop]: Abstraction has 903 states and 1183 transitions. [2020-10-12 17:48:13,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 17:48:13,926 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1183 transitions. [2020-10-12 17:48:13,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-12 17:48:13,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:48:13,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 17:48:13,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 17:48:13,932 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:48:13,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:48:13,933 INFO L82 PathProgramCache]: Analyzing trace with hash 570629920, now seen corresponding path program 1 times [2020-10-12 17:48:13,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:48:13,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720938260] [2020-10-12 17:48:13,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:48:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:13,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 17:48:14,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-12 17:48:14,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:14,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-12 17:48:14,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:14,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,437 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:48:14,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:48:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:14,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 17:48:14,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:14,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:14,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:14,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:48:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:14,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:14,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:14,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:14,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:14,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:48:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:14,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:14,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:14,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:14,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:14,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:48:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:14,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:14,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:14,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:14,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:14,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:48:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:14,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:14,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:14,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:14,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:14,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 17:48:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:14,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:14,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:14,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:14,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:14,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 17:48:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 17:48:14,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 17:48:14,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:14,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 17:48:14,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:14,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 17:48:14,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 17:48:14,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:14,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 17:48:14,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:14,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 17:48:14,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 17:48:14,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:14,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 17:48:14,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:14,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 17:48:14,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:48:14,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 17:48:14,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:14,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:14,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 17:48:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:14,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:14,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:14,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:14,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:14,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:48:14,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 17:48:14,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:14,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:14,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:14,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:14,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:14,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 17:48:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:14,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:14,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:14,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:14,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:14,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:14,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:14,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:14,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 17:48:14,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720938260] [2020-10-12 17:48:14,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 17:48:14,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 17:48:14,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188731952] [2020-10-12 17:48:14,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 17:48:14,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:48:14,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 17:48:14,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-12 17:48:14,701 INFO L87 Difference]: Start difference. First operand 903 states and 1183 transitions. Second operand 8 states. [2020-10-12 17:48:15,633 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:48:15,875 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:48:16,104 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:48:17,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:48:17,286 INFO L93 Difference]: Finished difference Result 1787 states and 2495 transitions. [2020-10-12 17:48:17,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 17:48:17,287 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-10-12 17:48:17,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:48:17,296 INFO L225 Difference]: With dead ends: 1787 [2020-10-12 17:48:17,297 INFO L226 Difference]: Without dead ends: 899 [2020-10-12 17:48:17,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-12 17:48:17,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2020-10-12 17:48:17,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 741. [2020-10-12 17:48:17,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2020-10-12 17:48:17,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 943 transitions. [2020-10-12 17:48:17,472 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 943 transitions. Word has length 83 [2020-10-12 17:48:17,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:48:17,473 INFO L479 AbstractCegarLoop]: Abstraction has 741 states and 943 transitions. [2020-10-12 17:48:17,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 17:48:17,473 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 943 transitions. [2020-10-12 17:48:17,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-12 17:48:17,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:48:17,482 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 17:48:17,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 17:48:17,482 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:48:17,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:48:17,483 INFO L82 PathProgramCache]: Analyzing trace with hash 843464018, now seen corresponding path program 1 times [2020-10-12 17:48:17,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:48:17,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156983656] [2020-10-12 17:48:17,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:48:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:17,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:17,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:17,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:17,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:17,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:20,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-12 17:48:22,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 17:48:22,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 17:48:22,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 17:48:22,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 17:48:22,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 17:48:22,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,815 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:48:22,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:48:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:22,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 17:48:22,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:22,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:48:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:22,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:22,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:22,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:48:22,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:22,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:22,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:22,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:48:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:22,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:22,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:22,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:48:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:22,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:22,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:22,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 17:48:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:22,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:22,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:22,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 17:48:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:22,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 17:48:22,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:22,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:22,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:22,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-12 17:48:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 17:48:22,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 17:48:22,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:48:22,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 17:48:22,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 17:48:22,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 17:48:22,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:48:22,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:22,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 17:48:22,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:22,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:22,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:22,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:22,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:22,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:22,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:48:22,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:22,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 17:48:22,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:22,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:22,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:23,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 17:48:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:23,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:23,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:23,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 17:48:23,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:23,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 17:48:23,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:23,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:23,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:23,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 17:48:23,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:23,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:23,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:23,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:23,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 17:48:23,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:23,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 17:48:23,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:23,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:23,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:23,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:23,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:23,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:23,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:23,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:23,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 17:48:23,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:23,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 17:48:23,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:23,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:23,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:23,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:23,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:23,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:23,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:23,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:23,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 17:48:23,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:23,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:23,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:23,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:23,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:23,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:23,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:23,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 17:48:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:23,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:23,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:23,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:23,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:23,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:23,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:23,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:23,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:23,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:23,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:23,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 17:48:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:23,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:23,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:23,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:23,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:23,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:48:23,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:23,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:23,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:23,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:23,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:23,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 17:48:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:23,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:23,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:23,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:23,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:23,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:23,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:23,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:23,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:23,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:23,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:23,084 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 17:48:23,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156983656] [2020-10-12 17:48:23,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 17:48:23,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 17:48:23,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804963372] [2020-10-12 17:48:23,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 17:48:23,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:48:23,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 17:48:23,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-12 17:48:23,086 INFO L87 Difference]: Start difference. First operand 741 states and 943 transitions. Second operand 13 states. [2020-10-12 17:48:23,733 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:48:24,533 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 17:48:24,847 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 17:48:25,144 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 17:48:25,383 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:48:25,677 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 17:48:25,968 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 17:48:29,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:48:29,142 INFO L93 Difference]: Finished difference Result 2069 states and 3055 transitions. [2020-10-12 17:48:29,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 17:48:29,143 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 106 [2020-10-12 17:48:29,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:48:29,156 INFO L225 Difference]: With dead ends: 2069 [2020-10-12 17:48:29,157 INFO L226 Difference]: Without dead ends: 1264 [2020-10-12 17:48:29,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=231, Invalid=581, Unknown=0, NotChecked=0, Total=812 [2020-10-12 17:48:29,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2020-10-12 17:48:29,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1063. [2020-10-12 17:48:29,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1063 states. [2020-10-12 17:48:29,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1385 transitions. [2020-10-12 17:48:29,356 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1385 transitions. Word has length 106 [2020-10-12 17:48:29,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:48:29,357 INFO L479 AbstractCegarLoop]: Abstraction has 1063 states and 1385 transitions. [2020-10-12 17:48:29,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 17:48:29,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1385 transitions. [2020-10-12 17:48:29,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-12 17:48:29,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:48:29,359 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] [2020-10-12 17:48:29,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 17:48:29,360 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:48:29,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:48:29,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1146127589, now seen corresponding path program 1 times [2020-10-12 17:48:29,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:48:29,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355105472] [2020-10-12 17:48:29,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:48:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 17:48:29,395 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 17:48:29,395 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 17:48:29,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 17:48:29,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:48:29 BoogieIcfgContainer [2020-10-12 17:48:29,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 17:48:29,443 INFO L168 Benchmark]: Toolchain (without parser) took 50061.09 ms. Allocated memory was 139.5 MB in the beginning and 856.2 MB in the end (delta: 716.7 MB). Free memory was 102.0 MB in the beginning and 307.4 MB in the end (delta: -205.4 MB). Peak memory consumption was 511.3 MB. Max. memory is 7.1 GB. [2020-10-12 17:48:29,443 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-12 17:48:29,444 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.69 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 102.0 MB in the beginning and 168.1 MB in the end (delta: -66.1 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-10-12 17:48:29,450 INFO L168 Benchmark]: Boogie Preprocessor took 89.59 ms. Allocated memory is still 202.4 MB. Free memory was 168.1 MB in the beginning and 163.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-10-12 17:48:29,456 INFO L168 Benchmark]: RCFGBuilder took 1104.15 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 163.8 MB in the beginning and 192.7 MB in the end (delta: -28.9 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. [2020-10-12 17:48:29,457 INFO L168 Benchmark]: TraceAbstraction took 48156.07 ms. Allocated memory was 235.9 MB in the beginning and 856.2 MB in the end (delta: 620.2 MB). Free memory was 192.7 MB in the beginning and 307.4 MB in the end (delta: -114.7 MB). Peak memory consumption was 505.5 MB. Max. memory is 7.1 GB. [2020-10-12 17:48:29,464 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 706.69 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 102.0 MB in the beginning and 168.1 MB in the end (delta: -66.1 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.59 ms. Allocated memory is still 202.4 MB. Free memory was 168.1 MB in the beginning and 163.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1104.15 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 163.8 MB in the beginning and 192.7 MB in the end (delta: -28.9 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 48156.07 ms. Allocated memory was 235.9 MB in the beginning and 856.2 MB in the end (delta: 620.2 MB). Free memory was 192.7 MB in the beginning and 307.4 MB in the end (delta: -114.7 MB). Peak memory consumption was 505.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 439]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L450] int waterLevel = 1; [L451] int methaneLevelCritical = 0; [L617] int pumpRunning = 0; [L618] int systemActive = 1; [L848] int cleanupTimeShifts = 4; [L921] int retValue_acc ; [L922] int tmp ; [L926] FCALL select_helpers() [L927] FCALL select_features() [L928] CALL, EXPR valid_product() [L839] int retValue_acc ; [L842] retValue_acc = 1 [L843] return (retValue_acc); [L928] RET, EXPR valid_product() [L928] tmp = valid_product() [L930] COND TRUE \read(tmp) [L932] FCALL setup() [L933] CALL runTest() [L915] CALL test() [L548] int splverifierCounter ; [L549] int tmp ; [L550] int tmp___0 ; [L551] int tmp___1 ; [L552] int tmp___2 ; [L555] splverifierCounter = 0 [L557] COND TRUE 1 [L559] COND TRUE splverifierCounter < 4 [L565] tmp = __VERIFIER_nondet_int() [L567] COND TRUE \read(tmp) [L569] CALL waterRise() [L468] COND TRUE waterLevel < 2 [L469] waterLevel = waterLevel + 1 [L569] RET waterRise() [L575] tmp___0 = __VERIFIER_nondet_int() [L577] COND TRUE \read(tmp___0) [L579] CALL changeMethaneLevel() [L480] COND FALSE !(\read(methaneLevelCritical)) [L483] methaneLevelCritical = 1 [L579] RET changeMethaneLevel() [L585] tmp___2 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___2) [L602] CALL timeShift() [L624] COND FALSE !(\read(pumpRunning)) [L631] COND TRUE \read(systemActive) [L633] CALL processEnvironment() [L679] int tmp ; [L682] COND FALSE !(\read(pumpRunning)) [L697] CALL processEnvironment__wrappee__highWaterSensor() [L653] int tmp ; [L656] COND TRUE ! pumpRunning [L658] CALL, EXPR isHighWaterLevel() [L776] int retValue_acc ; [L777] int tmp ; [L778] int tmp___0 ; [L782] CALL, EXPR isHighWaterSensorDry() [L530] int retValue_acc ; [L533] COND FALSE !(waterLevel < 2) [L537] retValue_acc = 0 [L538] return (retValue_acc); [L782] RET, EXPR isHighWaterSensorDry() [L782] tmp = isHighWaterSensorDry() [L784] COND FALSE !(\read(tmp)) [L787] tmp___0 = 1 [L789] retValue_acc = tmp___0 [L790] return (retValue_acc); [L658] RET, EXPR isHighWaterLevel() [L658] tmp = isHighWaterLevel() [L660] COND TRUE \read(tmp) [L662] CALL activatePump() [L707] pumpRunning = 1 [L662] RET activatePump() [L697] RET processEnvironment__wrappee__highWaterSensor() [L633] RET processEnvironment() [L639] CALL __utac_acc__Specification1_spec__1() [L410] int tmp ; [L411] int tmp___0 ; [L415] CALL, EXPR isMethaneLevelCritical() [L489] int retValue_acc ; [L492] retValue_acc = methaneLevelCritical [L493] return (retValue_acc); [L415] RET, EXPR isMethaneLevelCritical() [L415] tmp = isMethaneLevelCritical() [L417] COND TRUE \read(tmp) [L419] CALL, EXPR isPumpRunning() [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); [L419] RET, EXPR isPumpRunning() [L419] tmp___0 = isPumpRunning() [L421] COND TRUE \read(tmp___0) [L423] CALL __automaton_fail() [L439] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 231 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 48.0s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 26.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 818 SDtfs, 2290 SDslu, 1364 SDs, 0 SdLazy, 6160 SolverSat, 1713 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 283 GetRequests, 180 SyntacticMatches, 3 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 10.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1063occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 932 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 19.4s InterpolantComputationTime, 567 NumberOfCodeBlocks, 567 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 474 ConstructedInterpolants, 0 QuantifiedInterpolants, 161356 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 9/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...