/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:08:06,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:08:06,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:08:06,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:08:06,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:08:06,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:08:06,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:08:06,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:08:06,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:08:06,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:08:06,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:08:06,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:08:06,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:08:06,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:08:06,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:08:06,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:08:06,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:08:06,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:08:06,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:08:06,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:08:06,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:08:06,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:08:06,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:08:06,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:08:06,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:08:06,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:08:06,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:08:06,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:08:06,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:08:06,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:08:06,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:08:06,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:08:06,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:08:06,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:08:06,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:08:06,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:08:06,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:08:06,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:08:06,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:08:06,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:08:06,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:08:06,933 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 18:08:06,982 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:08:06,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:08:06,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:08:06,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:08:06,985 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:08:06,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:08:06,985 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:08:06,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:08:06,986 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:08:06,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:08:06,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:08:06,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:08:06,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:08:06,986 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:08:06,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:08:06,988 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:08:06,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:08:06,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:08:06,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:08:06,989 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:08:06,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:08:06,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:08:06,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:08:06,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:08:06,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:08:06,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:08:06,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:08:06,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:08:06,991 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:08:06,991 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:08:07,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:08:07,514 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:08:07,519 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:08:07,521 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:08:07,522 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:08:07,523 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2020-09-24 18:08:07,618 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b69d55de/f88191e98ca849d39472571ea60d7aa9/FLAGa83d45124 [2020-09-24 18:08:08,310 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:08:08,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2020-09-24 18:08:08,340 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b69d55de/f88191e98ca849d39472571ea60d7aa9/FLAGa83d45124 [2020-09-24 18:08:08,547 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b69d55de/f88191e98ca849d39472571ea60d7aa9 [2020-09-24 18:08:08,562 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:08:08,568 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:08:08,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:08:08,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:08:08,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:08:08,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:08:08" (1/1) ... [2020-09-24 18:08:08,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:08, skipping insertion in model container [2020-09-24 18:08:08,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:08:08" (1/1) ... [2020-09-24 18:08:08,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:08:08,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:08:09,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:08:09,175 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:08:09,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:08:09,288 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:08:09,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:09 WrapperNode [2020-09-24 18:08:09,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:08:09,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:08:09,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:08:09,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:08:09,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:09" (1/1) ... [2020-09-24 18:08:09,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:09" (1/1) ... [2020-09-24 18:08:09,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:09" (1/1) ... [2020-09-24 18:08:09,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:09" (1/1) ... [2020-09-24 18:08:09,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:09" (1/1) ... [2020-09-24 18:08:09,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:09" (1/1) ... [2020-09-24 18:08:09,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:09" (1/1) ... [2020-09-24 18:08:09,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:08:09,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:08:09,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:08:09,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:08:09,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:09" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:08:09,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:08:09,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:08:09,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:08:09,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:08:09,480 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:08:09,481 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:08:09,481 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:08:09,481 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:08:09,481 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:08:09,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:08:09,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:08:09,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:08:09,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:08:09,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:08:09,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:08:09,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:08:09,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:08:09,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:08:09,483 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:08:09,484 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:08:09,484 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:08:09,484 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:08:09,484 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:08:09,484 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:08:09,484 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:08:09,485 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:08:09,485 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:08:09,485 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:08:09,485 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:08:09,485 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:08:09,485 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:08:09,486 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:08:09,486 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:08:09,486 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:08:09,486 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:08:09,486 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:08:09,486 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:08:09,487 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:08:09,487 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:08:09,487 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:08:09,487 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:08:09,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:08:09,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:08:09,488 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:08:09,488 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:08:09,488 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:08:09,488 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:08:09,488 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:08:09,488 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:08:09,489 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:08:09,489 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:08:09,489 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:08:09,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:08:09,489 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:08:09,489 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:08:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:08:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:08:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:08:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:08:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:08:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:08:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:08:09,491 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:08:09,491 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:08:09,491 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:08:09,491 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:08:09,491 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:08:09,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:08:09,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:08:09,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:08:09,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:08:09,492 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:08:09,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:08:09,492 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:08:09,492 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:08:09,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:08:09,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:08:09,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:08:09,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:08:09,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:08:09,493 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:08:09,494 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:08:09,494 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:08:09,494 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:08:09,494 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:08:09,494 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:08:09,494 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:08:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:08:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:08:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:08:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:08:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:08:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:08:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:08:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:08:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:08:10,740 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:08:10,740 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:08:10,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:08:10 BoogieIcfgContainer [2020-09-24 18:08:10,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:08:10,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:08:10,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:08:10,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:08:10,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:08:08" (1/3) ... [2020-09-24 18:08:10,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f012b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:08:10, skipping insertion in model container [2020-09-24 18:08:10,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:09" (2/3) ... [2020-09-24 18:08:10,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f012b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:08:10, skipping insertion in model container [2020-09-24 18:08:10,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:08:10" (3/3) ... [2020-09-24 18:08:10,759 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product38.cil.c [2020-09-24 18:08:10,772 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:08:10,788 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:08:10,814 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:08:10,863 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:08:10,864 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:08:10,864 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:08:10,864 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:08:10,864 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:08:10,865 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:08:10,865 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:08:10,866 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:08:10,904 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states. [2020-09-24 18:08:10,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 18:08:10,939 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:10,941 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:08:10,942 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:10,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:10,952 INFO L82 PathProgramCache]: Analyzing trace with hash -548539878, now seen corresponding path program 1 times [2020-09-24 18:08:10,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:10,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257405878] [2020-09-24 18:08:10,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:11,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:11,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:13,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:13,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:16,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:16,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:16,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 18:08:16,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:08:16,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-24 18:08:16,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:16,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:16,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 18:08:16,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:16,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-24 18:08:16,982 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:16,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:17,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:17,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:17,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:17,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 18:08:17,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:17,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:17,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:17,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:17,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:17,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:17,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:17,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:17,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:17,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:17,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:17,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:17,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:17,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:17,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:17,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:17,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:17,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:17,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:17,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:17,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:17,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:17,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:17,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:17,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:17,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:17,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:17,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:17,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:17,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:08:17,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:17,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:17,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:17,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:17,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:17,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:17,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:17,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:17,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:17,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:17,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:17,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:17,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:17,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:17,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:17,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:17,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:17,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:17,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:17,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:17,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:17,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:17,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:08:17,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:17,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:17,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:17,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:17,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:17,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:17,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:17,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:08:17,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:17,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:17,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:17,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:17,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:17,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:17,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:17,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:17,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:17,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:17,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:17,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:17,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 18:08:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:17,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:17,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:17,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:17,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:17,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:17,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:17,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:17,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:17,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:17,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 18:08:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:17,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:17,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:17,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:17,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:17,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:17,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:17,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:17,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:17,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:17,310 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:08:17,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257405878] [2020-09-24 18:08:17,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:17,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:08:17,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605918969] [2020-09-24 18:08:17,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:08:17,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:17,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:08:17,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:08:17,343 INFO L87 Difference]: Start difference. First operand 323 states. Second operand 4 states. [2020-09-24 18:08:18,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:18,756 INFO L93 Difference]: Finished difference Result 505 states and 591 transitions. [2020-09-24 18:08:18,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:08:18,759 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 18:08:18,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:18,796 INFO L225 Difference]: With dead ends: 505 [2020-09-24 18:08:18,797 INFO L226 Difference]: Without dead ends: 318 [2020-09-24 18:08:18,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:08:18,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-09-24 18:08:18,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 272. [2020-09-24 18:08:19,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-09-24 18:08:19,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 295 transitions. [2020-09-24 18:08:19,007 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 295 transitions. Word has length 160 [2020-09-24 18:08:19,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:19,010 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 295 transitions. [2020-09-24 18:08:19,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:08:19,010 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 295 transitions. [2020-09-24 18:08:19,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 18:08:19,022 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:19,022 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:08:19,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:08:19,023 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:19,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:19,024 INFO L82 PathProgramCache]: Analyzing trace with hash -2128164298, now seen corresponding path program 1 times [2020-09-24 18:08:19,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:19,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331153626] [2020-09-24 18:08:19,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:19,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:19,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:19,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:20,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:21,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:22,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 18:08:24,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:08:24,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-24 18:08:24,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:24,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 18:08:24,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:08:24,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:24,467 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:24,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:24,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 18:08:24,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:24,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:24,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:24,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:24,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:24,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:24,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:24,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:24,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:24,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:24,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:24,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:24,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:24,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:24,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:24,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:24,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:24,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:24,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:24,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:24,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:24,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:24,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:24,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:24,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:24,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:24,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:24,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:24,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:24,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:24,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:24,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:24,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:24,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:24,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:24,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:08:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:24,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:24,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:24,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:08:24,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:24,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:24,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:24,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:24,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:24,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:24,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:24,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:24,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 18:08:24,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:24,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:24,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:24,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:24,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:24,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:24,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:08:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:24,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:24,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:24,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:24,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:24,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:24,716 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:08:24,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1331153626] [2020-09-24 18:08:24,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:24,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:08:24,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830472859] [2020-09-24 18:08:24,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:08:24,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:24,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:08:24,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:08:24,721 INFO L87 Difference]: Start difference. First operand 272 states and 295 transitions. Second operand 5 states. [2020-09-24 18:08:25,418 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:26,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:26,428 INFO L93 Difference]: Finished difference Result 430 states and 483 transitions. [2020-09-24 18:08:26,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:08:26,429 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-24 18:08:26,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:26,433 INFO L225 Difference]: With dead ends: 430 [2020-09-24 18:08:26,433 INFO L226 Difference]: Without dead ends: 307 [2020-09-24 18:08:26,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:08:26,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-24 18:08:26,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 262. [2020-09-24 18:08:26,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-24 18:08:26,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 282 transitions. [2020-09-24 18:08:26,486 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 282 transitions. Word has length 161 [2020-09-24 18:08:26,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:26,487 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 282 transitions. [2020-09-24 18:08:26,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:08:26,487 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 282 transitions. [2020-09-24 18:08:26,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-24 18:08:26,490 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:26,490 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:08:26,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:08:26,491 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:26,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:26,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1816762298, now seen corresponding path program 1 times [2020-09-24 18:08:26,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:26,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [746510426] [2020-09-24 18:08:26,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:26,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:26,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:27,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:28,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:31,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:31,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 18:08:31,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:08:31,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-24 18:08:31,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:31,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:31,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 18:08:31,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 18:08:31,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:31,991 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:31,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:32,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-24 18:08:32,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:08:32,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:32,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:32,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:32,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:32,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:32,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:08:32,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:32,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:32,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:32,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:32,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:08:32,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:32,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:32,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:32,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:08:32,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:08:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:32,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 18:08:32,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:32,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 18:08:32,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:32,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 18:08:32,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 18:08:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:32,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:32,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:32,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-24 18:08:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:32,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 18:08:32,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:32,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:32,386 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:08:32,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [746510426] [2020-09-24 18:08:32,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:32,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:08:32,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506444109] [2020-09-24 18:08:32,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:08:32,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:32,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:08:32,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:08:32,397 INFO L87 Difference]: Start difference. First operand 262 states and 282 transitions. Second operand 6 states. [2020-09-24 18:08:33,013 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:08:34,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:34,150 INFO L93 Difference]: Finished difference Result 477 states and 548 transitions. [2020-09-24 18:08:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 18:08:34,151 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-24 18:08:34,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:34,155 INFO L225 Difference]: With dead ends: 477 [2020-09-24 18:08:34,155 INFO L226 Difference]: Without dead ends: 330 [2020-09-24 18:08:34,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:08:34,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-09-24 18:08:34,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 262. [2020-09-24 18:08:34,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-24 18:08:34,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 281 transitions. [2020-09-24 18:08:34,192 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 281 transitions. Word has length 174 [2020-09-24 18:08:34,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:34,193 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 281 transitions. [2020-09-24 18:08:34,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:08:34,193 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 281 transitions. [2020-09-24 18:08:34,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-24 18:08:34,196 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:34,196 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:08:34,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:08:34,197 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:34,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:34,197 INFO L82 PathProgramCache]: Analyzing trace with hash -113759087, now seen corresponding path program 1 times [2020-09-24 18:08:34,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:34,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711567283] [2020-09-24 18:08:34,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:34,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:34,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:35,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:36,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:37,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:38,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:38,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:39,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:39,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-24 18:08:39,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 18:08:39,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-24 18:08:39,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:39,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:08:39,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-09-24 18:08:39,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:08:39,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:39,629 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:39,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:39,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:39,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:39,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:39,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:39,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 18:08:39,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:39,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:39,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:39,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:39,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:39,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:39,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:39,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:39,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:39,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:39,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:39,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:39,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:39,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:39,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:39,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:39,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:39,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:39,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:39,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:39,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:39,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:39,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:39,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:39,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:39,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:39,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:39,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:39,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:39,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:39,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:39,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:39,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:39,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:39,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:39,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:39,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:39,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:39,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:39,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:39,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:39,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:39,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:39,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:39,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:39,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:39,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:39,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:39,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:39,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:39,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:39,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:39,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:39,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:39,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:39,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:39,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:39,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:39,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:39,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:39,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:08:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:39,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:39,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:39,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:39,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:39,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:39,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:39,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:39,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:39,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:39,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:39,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:08:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:39,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:39,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:39,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:39,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:39,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:39,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:39,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:39,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:39,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:39,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:39,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:39,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:39,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:39,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:39,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:39,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:39,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:39,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:39,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:39,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:39,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:39,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:08:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:39,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:39,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:39,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 18:08:39,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:39,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 18:08:39,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:39,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:08:39,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 18:08:39,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:08:39,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:39,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:08:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:39,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:39,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:39,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 18:08:39,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:39,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:08:39,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:39,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:08:39,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 18:08:39,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 18:08:39,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:39,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:08:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:39,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:39,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:39,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:39,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:39,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:39,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:39,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:39,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:39,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:08:39,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:39,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 18:08:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:39,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:39,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:39,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:39,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:39,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:39,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:39,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:39,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:39,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:39,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:39,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 18:08:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:39,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:39,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:39,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:39,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:39,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:39,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:39,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:39,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:39,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:39,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:40,116 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:08:40,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1711567283] [2020-09-24 18:08:40,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:40,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:08:40,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100630968] [2020-09-24 18:08:40,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:08:40,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:40,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:08:40,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:08:40,120 INFO L87 Difference]: Start difference. First operand 262 states and 281 transitions. Second operand 8 states. [2020-09-24 18:08:40,671 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:08:42,867 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:43,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:43,767 INFO L93 Difference]: Finished difference Result 666 states and 793 transitions. [2020-09-24 18:08:43,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 18:08:43,767 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2020-09-24 18:08:43,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:43,772 INFO L225 Difference]: With dead ends: 666 [2020-09-24 18:08:43,772 INFO L226 Difference]: Without dead ends: 519 [2020-09-24 18:08:43,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-09-24 18:08:43,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2020-09-24 18:08:43,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 381. [2020-09-24 18:08:43,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-09-24 18:08:43,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 412 transitions. [2020-09-24 18:08:43,837 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 412 transitions. Word has length 187 [2020-09-24 18:08:43,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:43,838 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 412 transitions. [2020-09-24 18:08:43,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:08:43,838 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 412 transitions. [2020-09-24 18:08:43,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-24 18:08:43,841 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:43,841 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:08:43,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:08:43,842 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:43,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:43,842 INFO L82 PathProgramCache]: Analyzing trace with hash 2080657374, now seen corresponding path program 1 times [2020-09-24 18:08:43,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:43,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466818380] [2020-09-24 18:08:43,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:43,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:44,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:44,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:44,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:48,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:48,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:48,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-24 18:08:48,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:08:48,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-24 18:08:48,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:48,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:08:48,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-09-24 18:08:48,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 18:08:48,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:49,209 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:49,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:49,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:49,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:49,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:49,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:49,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:49,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 18:08:49,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:49,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:49,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:49,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:49,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:49,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:49,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:49,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:49,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:49,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:49,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:49,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:49,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:49,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:49,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:49,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:49,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:49,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:49,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:49,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:49,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:49,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:49,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:49,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:49,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:49,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:49,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:49,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:49,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:49,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:49,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:49,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:49,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:49,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:49,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:49,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:49,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:49,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:49,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:49,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:49,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:49,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:49,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:49,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:49,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:49,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:49,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:49,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:49,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:49,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:49,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:49,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:49,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:49,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:49,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:49,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:49,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:49,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:49,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:49,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:49,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:08:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:49,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:49,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:49,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:49,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:49,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:49,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:49,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:49,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:49,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:49,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:49,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:08:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:49,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:49,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:49,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:49,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:49,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:49,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:49,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:49,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:49,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:49,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:49,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:49,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:49,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:49,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:49,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:49,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:49,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:49,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:49,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:49,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:49,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:49,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:08:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:49,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:49,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:49,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:49,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 18:08:49,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:08:49,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 18:08:49,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:49,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:49,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:49,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:08:49,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:49,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:08:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:49,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:49,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:49,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 18:08:49,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:49,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 18:08:49,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:49,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:49,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:49,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:08:49,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:49,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:08:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:49,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:49,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:49,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:08:49,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:49,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:08:49,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:49,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:49,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:49,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 18:08:49,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:49,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:08:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:49,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:49,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:49,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:08:49,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:49,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:49,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:49,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:49,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:49,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:49,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:49,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:08:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:49,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:49,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:49,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:49,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:49,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:49,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:49,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:49,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:49,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:08:49,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:49,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 18:08:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:49,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:49,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:49,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:49,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:49,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:49,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:49,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:49,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:49,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:08:49,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:49,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 18:08:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:49,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:49,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:49,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:49,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:49,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:08:49,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:49,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:08:49,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:49,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:08:49,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:49,706 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 18:08:49,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466818380] [2020-09-24 18:08:49,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:49,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 18:08:49,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771518836] [2020-09-24 18:08:49,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 18:08:49,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:49,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 18:08:49,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:08:49,708 INFO L87 Difference]: Start difference. First operand 381 states and 412 transitions. Second operand 11 states. [2020-09-24 18:08:50,338 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:08:51,615 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-24 18:08:52,212 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 18:08:53,298 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:08:53,702 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 18:08:54,090 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:54,769 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:08:55,101 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:08:55,427 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:08:56,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:56,328 INFO L93 Difference]: Finished difference Result 784 states and 920 transitions. [2020-09-24 18:08:56,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 18:08:56,329 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 211 [2020-09-24 18:08:56,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:56,334 INFO L225 Difference]: With dead ends: 784 [2020-09-24 18:08:56,336 INFO L226 Difference]: Without dead ends: 518 [2020-09-24 18:08:56,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=266, Invalid=726, Unknown=0, NotChecked=0, Total=992 [2020-09-24 18:08:56,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-09-24 18:08:56,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 380. [2020-09-24 18:08:56,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-09-24 18:08:56,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 409 transitions. [2020-09-24 18:08:56,405 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 409 transitions. Word has length 211 [2020-09-24 18:08:56,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:56,406 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 409 transitions. [2020-09-24 18:08:56,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 18:08:56,406 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 409 transitions. [2020-09-24 18:08:56,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 18:08:56,409 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:56,410 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:08:56,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:08:56,410 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:56,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:56,411 INFO L82 PathProgramCache]: Analyzing trace with hash -841990399, now seen corresponding path program 1 times [2020-09-24 18:08:56,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:56,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1763766201] [2020-09-24 18:08:56,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY