/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:11:16,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:11:16,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:11:16,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:11:16,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:11:16,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:11:16,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:11:16,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:11:16,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:11:16,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:11:16,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:11:16,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:11:16,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:11:16,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:11:16,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:11:16,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:11:16,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:11:16,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:11:16,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:11:16,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:11:16,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:11:16,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:11:16,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:11:16,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:11:16,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:11:16,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:11:16,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:11:16,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:11:16,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:11:16,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:11:16,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:11:16,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:11:16,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:11:16,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:11:16,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:11:16,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:11:16,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:11:16,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:11:16,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:11:16,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:11:16,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:11:16,915 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 20:11:16,967 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:11:16,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:11:16,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:11:16,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:11:16,969 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:11:16,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:11:16,970 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:11:16,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:11:16,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:11:16,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:11:16,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:11:16,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:11:16,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:11:16,972 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:11:16,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:11:16,973 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:11:16,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:11:16,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:11:16,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:11:16,974 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:11:16,974 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:11:16,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:11:16,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:11:16,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:11:16,975 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:11:16,975 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:11:16,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:11:16,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:11:16,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:11:16,976 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-09-24 20:11:17,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:11:17,455 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:11:17,460 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:11:17,462 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:11:17,462 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:11:17,463 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c [2020-09-24 20:11:17,543 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e880a6af/1a78fc2fc3784ba78c0c8ebb76f803a3/FLAG6815b3135 [2020-09-24 20:11:18,168 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:11:18,169 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c [2020-09-24 20:11:18,199 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e880a6af/1a78fc2fc3784ba78c0c8ebb76f803a3/FLAG6815b3135 [2020-09-24 20:11:18,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e880a6af/1a78fc2fc3784ba78c0c8ebb76f803a3 [2020-09-24 20:11:18,444 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:11:18,449 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:11:18,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:11:18,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:11:18,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:11:18,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:11:18" (1/1) ... [2020-09-24 20:11:18,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59f61d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:11:18, skipping insertion in model container [2020-09-24 20:11:18,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:11:18" (1/1) ... [2020-09-24 20:11:18,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:11:18,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:11:19,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:11:19,061 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:11:19,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:11:19,192 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:11:19,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:11:19 WrapperNode [2020-09-24 20:11:19,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:11:19,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:11:19,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:11:19,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:11:19,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:11:19" (1/1) ... [2020-09-24 20:11:19,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:11:19" (1/1) ... [2020-09-24 20:11:19,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:11:19" (1/1) ... [2020-09-24 20:11:19,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:11:19" (1/1) ... [2020-09-24 20:11:19,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:11:19" (1/1) ... [2020-09-24 20:11:19,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:11:19" (1/1) ... [2020-09-24 20:11:19,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:11:19" (1/1) ... [2020-09-24 20:11:19,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:11:19,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:11:19,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:11:19,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:11:19,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:11:19" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:11:19,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:11:19,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:11:19,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:11:19,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:11:19,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:11:19,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:11:19,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:11:19,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:11:19,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:11:19,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:11:19,438 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:11:19,438 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:11:19,438 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:11:19,438 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:11:19,439 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:11:19,440 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:11:19,440 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:11:19,440 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 20:11:19,440 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:11:19,441 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 20:11:19,441 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:11:19,441 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:11:19,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:11:19,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:11:19,443 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:11:19,443 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:11:19,443 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:11:19,444 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:11:19,444 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:11:19,444 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:11:19,444 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:11:19,444 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:11:19,444 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:11:19,445 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:11:19,445 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:11:19,445 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:11:19,445 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:11:19,445 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:11:19,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 20:11:19,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 20:11:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:11:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:11:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:11:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:11:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:11:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:11:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:11:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:11:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:11:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:11:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:11:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:11:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:11:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:11:19,450 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:11:19,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:11:19,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:11:19,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:11:19,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:11:19,451 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:11:19,451 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:11:19,451 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:11:19,451 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:11:19,452 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:11:19,452 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:11:19,452 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:11:19,452 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:11:19,452 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:11:19,453 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 20:11:19,453 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:11:19,453 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:11:19,454 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:11:19,454 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:11:19,454 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:11:19,454 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:11:19,454 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:11:19,454 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:11:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:11:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:11:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:11:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:11:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:11:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 20:11:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:11:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:11:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:11:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 20:11:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:11:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 20:11:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:11:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:11:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:11:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:11:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:11:20,559 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:11:20,560 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:11:20,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:11:20 BoogieIcfgContainer [2020-09-24 20:11:20,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:11:20,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:11:20,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:11:20,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:11:20,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:11:18" (1/3) ... [2020-09-24 20:11:20,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea0a19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:11:20, skipping insertion in model container [2020-09-24 20:11:20,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:11:19" (2/3) ... [2020-09-24 20:11:20,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea0a19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:11:20, skipping insertion in model container [2020-09-24 20:11:20,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:11:20" (3/3) ... [2020-09-24 20:11:20,578 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product45.cil.c [2020-09-24 20:11:20,591 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:11:20,603 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:11:20,626 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:11:20,661 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:11:20,661 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:11:20,661 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:11:20,661 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:11:20,662 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:11:20,662 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:11:20,662 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:11:20,662 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:11:20,694 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states. [2020-09-24 20:11:20,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 20:11:20,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:11:20,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:11:20,716 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:11:20,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:11:20,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1778587784, now seen corresponding path program 1 times [2020-09-24 20:11:20,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:11:20,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [221387968] [2020-09-24 20:11:20,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:11:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:21,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:21,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:22,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:22,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:23,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:26,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:26,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 20:11:26,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:11:26,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-24 20:11:26,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:26,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:11:26,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 20:11:26,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-24 20:11:26,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 20:11:26,754 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:11:26,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:11:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:26,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:27,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:27,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:11:27,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:27,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-24 20:11:27,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:27,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:27,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:27,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 20:11:27,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:27,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:11:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:27,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:27,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:27,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:27,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:27,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:11:27,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:27,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:27,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:27,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:27,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:27,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:11:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:27,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:27,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:27,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:27,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:27,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:27,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:27,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:27,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:27,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:27,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:27,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:11:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:27,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:27,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:27,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:27,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:27,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 20:11:27,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:27,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:27,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:27,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:27,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:27,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:11:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:27,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:27,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:27,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:27,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:27,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:11:27,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:27,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:27,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:27,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:27,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:27,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:11:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:27,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:27,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:27,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:27,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:27,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:11:27,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:27,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:27,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:27,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:11:27,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:27,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:11:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:27,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:27,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:27,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:27,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:27,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 20:11:27,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:27,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:11:27,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:27,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:27,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:27,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 20:11:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:27,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:27,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:27,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:27,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:27,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:27,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:27,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:27,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:11:27,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:27,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:27,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:11:27,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [221387968] [2020-09-24 20:11:27,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:11:27,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:11:27,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377119757] [2020-09-24 20:11:27,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:11:27,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:11:27,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:11:27,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:11:27,527 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 9 states. [2020-09-24 20:11:28,194 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:11:29,496 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:11:29,817 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:11:30,148 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:30,549 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:30,898 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:31,559 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:11:31,936 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:32,466 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:11:33,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:11:33,692 INFO L93 Difference]: Finished difference Result 671 states and 812 transitions. [2020-09-24 20:11:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 20:11:33,694 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 20:11:33,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:11:33,731 INFO L225 Difference]: With dead ends: 671 [2020-09-24 20:11:33,732 INFO L226 Difference]: Without dead ends: 465 [2020-09-24 20:11:33,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 20:11:33,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-09-24 20:11:33,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 393. [2020-09-24 20:11:33,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-09-24 20:11:33,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 438 transitions. [2020-09-24 20:11:33,899 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 438 transitions. Word has length 148 [2020-09-24 20:11:33,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:11:33,900 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 438 transitions. [2020-09-24 20:11:33,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:11:33,900 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 438 transitions. [2020-09-24 20:11:33,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 20:11:33,906 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:11:33,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:11:33,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:11:33,907 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:11:33,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:11:33,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1560806647, now seen corresponding path program 1 times [2020-09-24 20:11:33,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:11:33,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1640986653] [2020-09-24 20:11:33,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:11:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:34,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:34,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:34,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:36,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:38,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:38,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-24 20:11:38,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:11:38,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 20:11:38,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:38,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 20:11:38,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 20:11:38,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-24 20:11:38,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:39,278 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:11:39,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:11:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:39,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:39,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:39,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:11:39,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:39,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-24 20:11:39,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:39,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:39,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:39,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 20:11:39,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:39,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:11:39,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:39,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:39,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:39,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:39,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:39,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:39,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:39,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:39,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:39,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:39,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:39,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:11:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:39,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:39,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:39,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:39,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:39,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:11:39,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:39,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:39,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:39,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:39,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:39,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:11:39,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:39,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:39,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:39,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:39,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:39,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:11:39,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:39,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:39,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:39,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:39,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:39,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:11:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:39,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:39,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:39,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:39,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:39,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:39,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:39,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:39,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:39,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:39,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:39,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:11:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:39,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:39,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:39,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:39,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:39,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:39,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:39,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:39,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:39,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:11:39,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:39,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:11:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:39,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:39,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:39,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:11:39,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:39,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:11:39,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:39,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:39,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:39,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:11:39,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:39,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 20:11:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:39,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:39,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:39,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:39,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:39,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:39,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:39,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:39,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:39,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:39,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:39,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 20:11:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:39,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:39,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:39,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:39,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:39,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:11:39,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:39,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:11:39,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:39,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:39,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:39,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:11:39,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1640986653] [2020-09-24 20:11:39,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:11:39,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 20:11:39,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19949171] [2020-09-24 20:11:39,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:11:39,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:11:39,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:11:39,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:11:39,800 INFO L87 Difference]: Start difference. First operand 393 states and 438 transitions. Second operand 10 states. [2020-09-24 20:11:40,282 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:11:41,478 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:11:41,821 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:11:42,198 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:42,560 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:42,924 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:44,277 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:11:44,601 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:45,004 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:11:45,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:11:45,644 INFO L93 Difference]: Finished difference Result 954 states and 1157 transitions. [2020-09-24 20:11:45,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 20:11:45,645 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-09-24 20:11:45,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:11:45,653 INFO L225 Difference]: With dead ends: 954 [2020-09-24 20:11:45,653 INFO L226 Difference]: Without dead ends: 676 [2020-09-24 20:11:45,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 20:11:45,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2020-09-24 20:11:45,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 566. [2020-09-24 20:11:45,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-09-24 20:11:45,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 641 transitions. [2020-09-24 20:11:45,746 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 641 transitions. Word has length 163 [2020-09-24 20:11:45,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:11:45,747 INFO L479 AbstractCegarLoop]: Abstraction has 566 states and 641 transitions. [2020-09-24 20:11:45,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 20:11:45,748 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 641 transitions. [2020-09-24 20:11:45,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-24 20:11:45,752 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:11:45,753 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:11:45,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:11:45,753 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:11:45,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:11:45,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1359580625, now seen corresponding path program 1 times [2020-09-24 20:11:45,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:11:45,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1077917604] [2020-09-24 20:11:45,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:11:45,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:45,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:45,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:46,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:46,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:46,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:46,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:50,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:50,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-09-24 20:11:50,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:11:50,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-24 20:11:50,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:50,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:11:50,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-24 20:11:50,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 20:11:50,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 20:11:51,221 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:11:51,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:11:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:51,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:51,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:51,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:11:51,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:51,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 20:11:51,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:51,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:51,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:51,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:51,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:51,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:11:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:51,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:51,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:51,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:51,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:51,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:51,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:51,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:51,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:51,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:51,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:51,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:11:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:51,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:51,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:51,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:51,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:51,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:51,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:51,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:51,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:51,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:51,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:51,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:11:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:51,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:51,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:51,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:51,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:51,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:11:51,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:51,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:51,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:11:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:51,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:51,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:51,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:51,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:51,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:51,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:51,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:51,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:51,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:51,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:51,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:11:51,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:51,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:51,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:51,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:51,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:51,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:11:51,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:51,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:51,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:51,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:51,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:51,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:11:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:51,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:51,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:51,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:11:51,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:51,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:51,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:51,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:51,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 20:11:51,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:51,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 20:11:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:51,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:51,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:51,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 20:11:51,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:51,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 20:11:51,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:51,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:11:51,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 20:11:51,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 20:11:51,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:51,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:11:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:51,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:51,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:51,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 20:11:51,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:51,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 20:11:51,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:51,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:11:51,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:51,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:11:51,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:51,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:11:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:51,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:51,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:51,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:51,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:51,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:11:51,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:51,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:11:51,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:51,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:11:51,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:51,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 20:11:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:51,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:51,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:52,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:52,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 20:11:52,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:11:52,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-24 20:11:52,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:52,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:11:52,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 20:11:52,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:11:52,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:52,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:11:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:52,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:52,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:52,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 20:11:52,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:52,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 20:11:52,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:52,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:11:52,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:11:52,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:11:52,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:52,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:11:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:52,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:52,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:52,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:11:52,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:52,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 20:11:52,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:52,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:11:52,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:52,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:11:52,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:52,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:11:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:52,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:52,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:52,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:11:52,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:52,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:11:52,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:52,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:52,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:52,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:52,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:52,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:11:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:52,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:52,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:52,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 20:11:52,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:52,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 20:11:52,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:52,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:52,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 20:11:52,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:52,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:52,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:11:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:52,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:52,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:52,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:11:52,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:52,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:52,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:52,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:52,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:52,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:52,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:52,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:11:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:52,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:52,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:52,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:52,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:52,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:52,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:52,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:52,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:52,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:52,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:52,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 20:11:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:52,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:52,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:52,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:52,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:52,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:52,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:52,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:52,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:52,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:52,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:52,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-09-24 20:11:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:52,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:52,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:52,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:52,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:52,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:52,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:52,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:11:52,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:52,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:52,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-09-24 20:11:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:52,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:52,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:52,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:52,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:52,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:52,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:52,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:52,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:11:52,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:52,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:52,501 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-24 20:11:52,502 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1077917604] [2020-09-24 20:11:52,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:11:52,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 20:11:52,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126590937] [2020-09-24 20:11:52,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 20:11:52,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:11:52,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 20:11:52,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:11:52,505 INFO L87 Difference]: Start difference. First operand 566 states and 641 transitions. Second operand 19 states. [2020-09-24 20:11:53,041 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:11:54,298 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:11:54,754 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:11:55,114 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:11:55,547 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:55,908 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:56,590 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 20:11:57,327 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-09-24 20:11:57,978 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 20:11:58,573 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:58,960 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:11:59,345 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-24 20:11:59,746 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:00,116 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:00,498 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:12:00,864 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:12:01,237 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-24 20:12:01,629 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:02,027 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:02,491 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:12:02,922 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:12:05,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:12:05,853 INFO L93 Difference]: Finished difference Result 1238 states and 1556 transitions. [2020-09-24 20:12:05,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-09-24 20:12:05,854 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 249 [2020-09-24 20:12:05,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:12:05,866 INFO L225 Difference]: With dead ends: 1238 [2020-09-24 20:12:05,867 INFO L226 Difference]: Without dead ends: 787 [2020-09-24 20:12:05,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 808 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=635, Invalid=2557, Unknown=0, NotChecked=0, Total=3192 [2020-09-24 20:12:05,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2020-09-24 20:12:05,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 592. [2020-09-24 20:12:05,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-09-24 20:12:06,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 669 transitions. [2020-09-24 20:12:06,001 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 669 transitions. Word has length 249 [2020-09-24 20:12:06,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:12:06,003 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 669 transitions. [2020-09-24 20:12:06,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 20:12:06,003 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 669 transitions. [2020-09-24 20:12:06,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-09-24 20:12:06,009 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:12:06,010 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:12:06,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:12:06,010 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:12:06,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:12:06,011 INFO L82 PathProgramCache]: Analyzing trace with hash 2068995148, now seen corresponding path program 1 times [2020-09-24 20:12:06,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:12:06,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268886233] [2020-09-24 20:12:06,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:12:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:12:06,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:12:06,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking...